Matthew Wilcox (Oracle) [Fri, 30 Apr 2021 05:55:35 +0000 (22:55 -0700)]
mm: move page_mapping_file to pagemap.h
page_mapping_file() is only used by some architectures, and then it
is usually only used in one place. Make it a static inline function
so other architectures don't have to carry this dead code.
Link: https://lkml.kernel.org/r/20210317123011.350118-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Johannes Weiner [Fri, 30 Apr 2021 05:55:32 +0000 (22:55 -0700)]
mm: page-writeback: simplify memcg handling in test_clear_page_writeback()
Page writeback doesn't hold a page reference, which allows truncate to
free a page the second PageWriteback is cleared. This used to require
special attention in test_clear_page_writeback(), where we had to be
careful not to rely on the unstable page->memcg binding and look up all
the necessary information before clearing the writeback flag.
Since commit
073861ed77b6 ("mm: fix VM_BUG_ON(PageTail) and
BUG_ON(PageWriteback)") test_clear_page_writeback() is called with an
explicit reference on the page, and this dance is no longer needed.
Use unlock_page_memcg() and dec_lruvec_page_state() directly.
This removes the last user of the lock_page_memcg() return value, change
it to void. Touch up the comments in there as well. This also removes
the last extern user of __unlock_page_memcg(), make it static. Further,
it removes the last user of dec_lruvec_state(), delete it, along with a
few other unused helpers.
Link: https://lkml.kernel.org/r/YCQbYAWg4nvBFL6h@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Wilcox (Oracle) [Fri, 30 Apr 2021 05:55:29 +0000 (22:55 -0700)]
mm/filemap: drop check for truncated page after I/O
If the I/O completed successfully, the page will remain Uptodate, even
if it is subsequently truncated. If the I/O completed with an error,
this check would cause us to retry the I/O if the page were truncated
before we woke up. There is no need to retry the I/O; the I/O to fill
the page failed, so we can legitimately just return -EIO.
This code was originally added by commit
56f0d5fe6851 ("[PATCH]
readpage-vs-invalidate fix") in 2005 (this commit ID is from the
linux-fullhistory tree; it is also commit
ba1f08f14b52 in tglx-history).
At the time, truncate_complete_page() called ClearPageUptodate(), and so
this was fixing a real bug. In 2008, commit
84209e02de48 ("mm: dont clear
PG_uptodate on truncate/invalidate") removed the call to
ClearPageUptodate, and this check has been unnecessary ever since.
It doesn't do any real harm, but there's no need to keep it.
Link: https://lkml.kernel.org/r/20210303222547.1056428-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Wilcox (Oracle) [Fri, 30 Apr 2021 05:55:26 +0000 (22:55 -0700)]
mm/filemap: use filemap_read_page in filemap_fault
After splitting generic_file_buffered_read() into smaller parts, it turns
out we can reuse one of the parts in filemap_fault(). This fixes an
oversight -- waiting for the I/O to complete is now interruptible by a
fatal signal. And it saves us a few bytes of text in an unlikely path.
$ ./scripts/bloat-o-meter before.o after.o
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-207 (-207)
Function old new delta
filemap_fault 2187 1980 -207
Total: Before=37491, After=37284, chg -0.55%
Link: https://lkml.kernel.org/r/20210226140011.2883498-1-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Axboe [Fri, 30 Apr 2021 05:55:24 +0000 (22:55 -0700)]
iomap: use filemap_range_needs_writeback() for O_DIRECT reads
For reads, use the better variant of checking for the need to call
filemap_write_and_wait_range() when doing O_DIRECT. This avoids falling
back to the slow path for IOCB_NOWAIT, if there are no pages to wait for
(or write out).
Link: https://lkml.kernel.org/r/20210224164455.1096727-4-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Axboe [Fri, 30 Apr 2021 05:55:21 +0000 (22:55 -0700)]
mm: use filemap_range_needs_writeback() for O_DIRECT reads
For the generic page cache read helper, use the better variant of checking
for the need to call filemap_write_and_wait_range() when doing O_DIRECT
reads. This avoids falling back to the slow path for IOCB_NOWAIT, if
there are no pages to wait for (or write out).
Link: https://lkml.kernel.org/r/20210224164455.1096727-3-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jens Axboe [Fri, 30 Apr 2021 05:55:18 +0000 (22:55 -0700)]
mm: provide filemap_range_needs_writeback() helper
Patch series "Improve IOCB_NOWAIT O_DIRECT reads", v3.
An internal workload complained because it was using too much CPU, and
when I took a look, we had a lot of io_uring workers going to town.
For an async buffered read like workload, I am normally expecting _zero_
offloads to a worker thread, but this one had tons of them. I'd drop
caches and things would look good again, but then a minute later we'd
regress back to using workers. Turns out that every minute something
was reading parts of the device, which would add page cache for that
inode. I put patches like these in for our kernel, and the problem was
solved.
Don't -EAGAIN IOCB_NOWAIT dio reads just because we have page cache
entries for the given range. This causes unnecessary work from the
callers side, when the IO could have been issued totally fine without
blocking on writeback when there is none.
This patch (of 3):
For O_DIRECT reads/writes, we check if we need to issue a call to
filemap_write_and_wait_range() to issue and/or wait for writeback for any
page in the given range. The existing mechanism just checks for a page in
the range, which is suboptimal for IOCB_NOWAIT as we'll fallback to the
slow path (and needing retry) if there's just a clean page cache page in
the range.
Provide filemap_range_needs_writeback() which tries a little harder to
check if we actually need to issue and/or wait for writeback in the range.
Link: https://lkml.kernel.org/r/20210224164455.1096727-1-axboe@kernel.dk
Link: https://lkml.kernel.org/r/20210224164455.1096727-2-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anshuman Khandual [Fri, 30 Apr 2021 05:55:15 +0000 (22:55 -0700)]
mm/memtest: add ARCH_USE_MEMTEST
early_memtest() does not get called from all architectures. Hence
enabling CONFIG_MEMTEST and providing a valid memtest=[1..N] kernel
command line option might not trigger the memory pattern tests as would be
expected in normal circumstances. This situation is misleading.
The change here prevents the above mentioned problem after introducing a
new config option ARCH_USE_MEMTEST that should be subscribed on platforms
that call early_memtest(), in order to enable the config CONFIG_MEMTEST.
Conversely CONFIG_MEMTEST cannot be enabled on platforms where it would
not be tested anyway.
Link: https://lkml.kernel.org/r/1617269193-22294-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> (arm64)
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:55:12 +0000 (22:55 -0700)]
mm: page_poison: print page info when corruption is caught
When page_poison detects page corruption it's useful to see who freed a
page recently to have a guess where write-after-free corruption happens.
After this change corruption report has extra page data.
Example report from real corruption (includes only page_pwner part):
pagealloc: memory corruption
e00000014cd61d10: 11 00 00 00 00 00 00 00 30 1d d2 ff ff 0f 00 60 ........0......`
e00000014cd61d20: b0 1d d2 ff ff 0f 00 60 90 fe 1c 00 08 00 00 20 .......`.......
...
CPU: 1 PID: 220402 Comm: cc1plus Not tainted
5.12.0-rc5-00107-g9720c6f59ecf #245
Hardware name: hp server rx3600, BIOS 04.03 04/08/2008
...
Call Trace:
[<
a000000100015210>] show_stack+0x90/0xc0
[<
a000000101163390>] dump_stack+0x150/0x1c0
[<
a0000001003f1e90>] __kernel_unpoison_pages+0x410/0x440
[<
a0000001003c2460>] get_page_from_freelist+0x1460/0x2ca0
[<
a0000001003c6be0>] __alloc_pages_nodemask+0x3c0/0x660
[<
a0000001003ed690>] alloc_pages_vma+0xb0/0x500
[<
a00000010037deb0>] __handle_mm_fault+0x1230/0x1fe0
[<
a00000010037ef70>] handle_mm_fault+0x310/0x4e0
[<
a00000010005dc70>] ia64_do_page_fault+0x1f0/0xb80
[<
a00000010000ca00>] ia64_leave_kernel+0x0/0x270
page_owner tracks the page as freed
page allocated via order 0, migratetype Movable,
gfp_mask 0x100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 37, ts
8173444098740
__reset_page_owner+0x40/0x200
free_pcp_prepare+0x4d0/0x600
free_unref_page+0x20/0x1c0
__put_page+0x110/0x1a0
migrate_pages+0x16d0/0x1dc0
compact_zone+0xfc0/0x1aa0
proactive_compact_node+0xd0/0x1e0
kcompactd+0x550/0x600
kthread+0x2c0/0x2e0
call_payload+0x50/0x80
Here we can see that page was freed by page migration but something
managed to write to it afterwards.
[slyfox@gentoo.org: s/dump_page_owner/dump_page/, per Vlastimil]
Link: https://lkml.kernel.org/r/20210407230800.1086854-1-slyfox@gentoo.org
Link: https://lkml.kernel.org/r/20210404141735.2152984-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:55:08 +0000 (22:55 -0700)]
mm: page_owner: detect page_owner recursion via task_struct
Before the change page_owner recursion was detected via fetching
backtrace and inspecting it for current instruction pointer.
It has a few problems:
- it is slightly slow as it requires extra backtrace and a linear stack
scan of the result
- it is too late to check if backtrace fetching required memory
allocation itself (ia64's unwinder requires it).
To simplify recursion tracking let's use page_owner recursion flag in
'struct task_struct'.
The change make page_owner=on work on ia64 by avoiding infinite
recursion in:
kmalloc()
-> __set_page_owner()
-> save_stack()
-> unwind() [ia64-specific]
-> build_script()
-> kmalloc()
-> __set_page_owner() [we short-circuit here]
-> save_stack()
-> unwind() [recursion]
Link: https://lkml.kernel.org/r/20210402115342.1463781-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ben Segall <bsegall@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:55:05 +0000 (22:55 -0700)]
mm: page_owner: use kstrtobool() to parse bool option
I tried to use page_owner=1 for a while noticed too late it had no effect
as opposed to similar init_on_alloc=1 (these work).
Let's make them consistent.
The change decreses binary size slightly:
text data bss dec hex filename
12408 321 17 12746 31ca mm/page_owner.o.before
12320 321 17 12658 3172 mm/page_owner.o.after
Link: https://lkml.kernel.org/r/20210401210909.3532086-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:55:02 +0000 (22:55 -0700)]
mm: page_owner: fetch backtrace only for tracked pages
Very minor optimization.
Link: https://lkml.kernel.org/r/20210401212445.3534721-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
zhongjiang-ali [Fri, 30 Apr 2021 05:55:00 +0000 (22:55 -0700)]
mm, page_owner: remove unused parameter in __set_page_owner_handle
Since commit
5556cfe8d994 ("mm, page_owner: fix off-by-one error in
__set_page_owner_handle()") introduced, the parameter 'page' will not
used, hence it need to be removed.
Link: https://lkml.kernel.org/r/1616602022-43545-1-git-send-email-zhongjiang-ali@linux.alibaba.com
Signed-off-by: zhongjiang-ali <zhongjiang-ali@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Georgi Djakov [Fri, 30 Apr 2021 05:54:57 +0000 (22:54 -0700)]
mm/page_owner: record the timestamp of all pages during free
Collect the time when each allocation is freed, to help with memory
analysis with kdump/ramdump. Add the timestamp also in the page_owner
debugfs file and print it in dump_page().
Having another timestamp when we free the page helps for debugging page
migration issues. For example both alloc and free timestamps being the
same can gave hints that there is an issue with migrating memory, as
opposed to a page just being dropped during migration.
Link: https://lkml.kernel.org/r/20210203175905.12267-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:54:54 +0000 (22:54 -0700)]
mm/kmemleak.c: fix a typo
s/interruptable/interruptible/
Link: https://lkml.kernel.org/r/20210319214140.23304-1-unixbhaskar@gmail.com
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:54:51 +0000 (22:54 -0700)]
mm/slub.c: trivial typo fixes
s/operatios/operations/
s/Mininum/Minimum/
s/mininum/minimum/ ......two different places.
Link: https://lkml.kernel.org/r/20210325044940.14516-1-unixbhaskar@gmail.com
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vlastimil Babka [Fri, 30 Apr 2021 05:54:42 +0000 (22:54 -0700)]
mm, slub: enable slub_debug static key when creating cache with explicit debug flags
Commit
ca0cab65ea2b ("mm, slub: introduce static key for slub_debug()")
introduced a static key to optimize the case where no debugging is
enabled for any cache. The static key is enabled when slub_debug boot
parameter is passed, or CONFIG_SLUB_DEBUG_ON enabled.
However, some caches might be created with one or more debugging flags
explicitly passed to kmem_cache_create(), and the commit missed this.
Thus the debugging functionality would not be actually performed for
these caches unless the static key gets enabled by boot param or config.
This patch fixes it by checking for debugging flags passed to
kmem_cache_create() and enabling the static key accordingly.
Note such explicit debugging flags should not be used outside of
debugging and testing as they will now enable the static key globally.
btrfs_init_cachep() creates a cache with SLAB_RED_ZONE but that's a
mistake that's being corrected [1]. rcu_torture_stats() creates a cache
with SLAB_STORE_USER, but that is a testing module so it's OK and will
start working as intended after this patch.
Also note that in case of backports to kernels before v5.12 that don't
have
59450bbc12be ("mm, slab, slub: stop taking cpu hotplug lock"),
static_branch_enable_cpuslocked() should be used.
[1] https://lore.kernel.org/linux-btrfs/
20210315141824.26099-1-dsterba@suse.com/
Link: https://lkml.kernel.org/r/20210315153415.24404-1-vbabka@suse.cz
Fixes: ca0cab65ea2b ("mm, slub: introduce static key for slub_debug()")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reported-by: Oliver Glitta <glittao@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rafael Aquini [Fri, 30 Apr 2021 05:54:39 +0000 (22:54 -0700)]
mm/slab_common: provide "slab_merge" option for !IS_ENABLED(CONFIG_SLAB_MERGE_DEFAULT) builds
This is a minor addition to the allocator setup options to provide a
simple way to on demand enable back cache merging for builds that by
default run with CONFIG_SLAB_MERGE_DEFAULT not set.
Link: https://lkml.kernel.org/r/20210319194506.200159-1-aquini@redhat.com
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:36 +0000 (22:54 -0700)]
watchdog: cleanup handling of false positives
Commit
d6ad3e286d2c ("softlockup: Add sched_clock_tick() to avoid kernel
warning on kgdb resume") introduced touch_softlockup_watchdog_sync().
It solved a problem when the watchdog was touched in an atomic context,
the timer callback was proceed right after releasing interrupts, and the
local clock has not been updated yet. In this case, sched_clock_tick()
was called in watchdog_timer_fn() before updating the timer.
So far so good.
Later commit
5d1c0f4a80a6 ("watchdog: add check for suspended vm in
softlockup detector") added two kvm_check_and_clear_guest_paused()
calls. They touch the watchdog when the guest has been sleeping.
The code makes my head spin around.
Scenario 1:
+ guest did sleep:
+ PVCLOCK_GUEST_STOPPED is set
+ 1st watchdog_timer_fn() invocation:
+ the watchdog is not touched yet
+ is_softlockup() returns too big delay
+ kvm_check_and_clear_guest_paused():
+ clear PVCLOCK_GUEST_STOPPED
+ call touch_softlockup_watchdog_sync()
+ set SOFTLOCKUP_DELAY_REPORT
+ set softlockup_touch_sync
+ return from the timer callback
+ 2nd watchdog_timer_fn() invocation:
+ call sched_clock_tick() even though it is not needed.
The timer callback was invoked again only because the clock
has already been updated in the meantime.
+ call kvm_check_and_clear_guest_paused() that does nothing
because PVCLOCK_GUEST_STOPPED has been cleared already.
+ call update_report_ts() and return. This is fine. Except
that sched_clock_tick() might allow to set it already
during the 1st invocation.
Scenario 2:
+ guest did sleep
+ 1st watchdog_timer_fn() invocation
+ same as in 1st scenario
+ guest did sleep again:
+ set PVCLOCK_GUEST_STOPPED again
+ 2nd watchdog_timer_fn() invocation
+ SOFTLOCKUP_DELAY_REPORT is set from 1st invocation
+ call sched_clock_tick()
+ call kvm_check_and_clear_guest_paused()
+ clear PVCLOCK_GUEST_STOPPED
+ call touch_softlockup_watchdog_sync()
+ set SOFTLOCKUP_DELAY_REPORT
+ set softlockup_touch_sync
+ call update_report_ts() (set real timestamp immediately)
+ return from the timer callback
+ 3rd watchdog_timer_fn() invocation
+ timestamp is set from 2nd invocation
+ softlockup_touch_sync is set but not checked because
the real timestamp is already set
Make the code more straightforward:
1. Always call kvm_check_and_clear_guest_paused() at the very
beginning to handle PVCLOCK_GUEST_STOPPED. It touches the watchdog
when the quest did sleep.
2. Handle the situation when the watchdog has been touched
(SOFTLOCKUP_DELAY_REPORT is set).
Call sched_clock_tick() when touch_*sync() variant was used. It makes
sure that the timestamp will be up to date even when it has been
touched in atomic context or quest did sleep.
As a result, kvm_check_and_clear_guest_paused() is called on a single
location. And the right timestamp is always set when returning from the
timer callback.
Link: https://lkml.kernel.org/r/20210311122130.6788-7-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:33 +0000 (22:54 -0700)]
watchdog: fix barriers when printing backtraces from all CPUs
Any parallel softlockup reports are skipped when one CPU is already
printing backtraces from all CPUs.
The exclusive rights are synchronized using one bit in
soft_lockup_nmi_warn. There is also one memory barrier that does not make
much sense.
Use two barriers on the right location to prevent mixing two reports.
[pmladek@suse.com: use bit lock operations to prevent multiple soft-lockup reports]
Link: https://lkml.kernel.org/r/YFSVsLGVWMXTvlbk@alley
Link: https://lkml.kernel.org/r/20210311122130.6788-6-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:30 +0000 (22:54 -0700)]
watchdog/softlockup: remove logic that tried to prevent repeated reports
The softlockup detector does some gymnastic with the variable
soft_watchdog_warn. It was added by the commit
58687acba59266735ad
("lockup_detector: Combine nmi_watchdog and softlockup detector").
The purpose is not completely clear. There are the following clues. They
describe the situation how it looked after the above mentioned commit:
1. The variable was checked with a comment "only warn once".
2. The variable was set when softlockup was reported. It was cleared
only when the CPU was not longer in the softlockup state.
3. watchdog_touch_ts was not explicitly updated when the softlockup
was reported. Without this variable, the report would normally
be printed again during every following watchdog_timer_fn()
invocation.
The logic has got even more tangled up by the commit
ed235875e2ca98
("kernel/watchdog.c: print traces for all cpus on lockup detection").
After this commit, soft_watchdog_warn is set only when
softlockup_all_cpu_backtrace is enabled. But multiple reports from all
CPUs are prevented by a new variable soft_lockup_nmi_warn.
Conclusion:
The variable probably never worked as intended. In each case, it has not
worked last many years because the softlockup was reported repeatedly
after the full period defined by watchdog_thresh.
The reason is that watchdog gets touched in many known slow paths, for
example, in printk_stack_address(). This code is called also when
printing the softlockup report. It means that the watchdog timestamp gets
updated after each report.
Solution:
Simply remove the logic. People want the periodic report anyway.
Link: https://lkml.kernel.org/r/20210311122130.6788-5-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:26 +0000 (22:54 -0700)]
watchdog/softlockup: report the overall time of softlockups
The softlockup detector currently shows the time spent since the last
report. As a result it is not clear whether a CPU is infinitely hogged by
a single task or if it is a repeated event.
The situation can be simulated with a simply busy loop:
while (true)
cpu_relax();
The softlockup detector produces:
[ 168.277520] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [cat:4865]
[ 196.277604] watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [cat:4865]
[ 236.277522] watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [cat:4865]
But it should be, something like:
[ 480.372418] watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [cat:4943]
[ 508.372359] watchdog: BUG: soft lockup - CPU#2 stuck for 52s! [cat:4943]
[ 548.372359] watchdog: BUG: soft lockup - CPU#2 stuck for 89s! [cat:4943]
[ 576.372351] watchdog: BUG: soft lockup - CPU#2 stuck for 115s! [cat:4943]
For the better output, add an additional timestamp of the last report.
Only this timestamp is reset when the watchdog is intentionally touched
from slow code paths or when printing the report.
Link: https://lkml.kernel.org/r/20210311122130.6788-4-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:23 +0000 (22:54 -0700)]
watchdog: explicitly update timestamp when reporting softlockup
The softlockup situation might stay for a long time or even forever. When
it happens, the softlockup debug messages are printed in regular intervals
defined by get_softlockup_thresh().
There is a mystery. The repeated message is printed after the full
interval that is defined by get_softlockup_thresh(). But the timer
callback is called more often as defined by sample_period. The code looks
like the soflockup should get reported in every sample_period when it was
once behind the thresh.
It works only by chance. The watchdog is touched when printing the stall
report, for example, in printk_stack_address().
Make the behavior clear and predictable by explicitly updating the
timestamp in watchdog_timer_fn() when the report gets printed.
Link: https://lkml.kernel.org/r/20210311122130.6788-3-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Petr Mladek [Fri, 30 Apr 2021 05:54:20 +0000 (22:54 -0700)]
watchdog: rename __touch_watchdog() to a better descriptive name
Patch series "watchdog/softlockup: Report overall time and some cleanup", v2.
I dug deep into the softlockup watchdog history when time permitted this
year. And reworked the patchset that fixed timestamps and cleaned up the
code[2].
I split it into very small steps and did even more code clean up. The
result looks quite strightforward and I am pretty confident with the
changes.
[1] v2: https://lore.kernel.org/r/
20201210160038.31441-1-pmladek@suse.com
[2] v1: https://lore.kernel.org/r/
20191024114928.15377-1-pmladek@suse.com
This patch (of 6):
There are many touch_*watchdog() functions. They are called in situations
where the watchdog could report false positives or create unnecessary
noise. For example, when CPU is entering idle mode, a virtual machine is
stopped, or a lot of messages are printed in the atomic context.
These functions set SOFTLOCKUP_RESET instead of a real timestamp. It
allows to call them even in a context where jiffies might be outdated.
For example, in an atomic context.
The real timestamp is set by __touch_watchdog() that is called from the
watchdog timer callback.
Rename this callback to update_touch_ts(). It better describes the effect
and clearly distinguish is from the other touch_*watchdog() functions.
Another motivation is that two timestamps are going to be used. One will
be used for the total softlockup time. The other will be used to measure
time since the last report. The new function name will help to
distinguish which timestamp is being updated.
Link: https://lkml.kernel.org/r/20210311122130.6788-1-pmladek@suse.com
Link: https://lkml.kernel.org/r/20210311122130.6788-2-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Fri, 30 Apr 2021 05:54:17 +0000 (22:54 -0700)]
vfs: fs_parser: clean up kernel-doc warnings
Fix kernel-doc notation function arguments to eliminate two kernel-doc
warnings:
fs_parser.c:322: warning: Excess function parameter 'name' description in 'validate_constant_table'
fs_parser.c:367: warning: Function parameter or member 'name' not described in 'fs_validate_description'
Link: https://lkml.kernel.org/r/20210407033743.9701-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dan Carpenter [Fri, 30 Apr 2021 05:54:15 +0000 (22:54 -0700)]
kfifo: fix ternary sign extension bugs
The intent with this code was to return negative error codes but instead
it returns positives.
The problem is how type promotion works with ternary operations. These
functions return long, "ret" is an int and "copied" is a u32. The
negative error code is first cast to u32 so it becomes a high positive and
then cast to long where it's still a positive.
We could fix this by declaring "ret" as a ssize_t but let's just get rid
of the ternaries instead.
Link: https://lkml.kernel.org/r/YIE+/cK1tBzSuQPU@mwanda
Fixes: 5bf2b19320ec ("kfifo: add example files to the kernel sample directory")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jiapeng Chong [Fri, 30 Apr 2021 05:54:11 +0000 (22:54 -0700)]
ocfs2/dlm: remove unused function
Fix the following clang warning:
fs/ocfs2/dlm/dlmrecovery.c:129:20: warning: unused function 'dlm_reset_recovery' [-Wunused-function].
Link: https://lkml.kernel.org/r/1618382761-5784-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Reviewed-by: Wengang Wang <wen.gang.wang@oracle.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:54:08 +0000 (22:54 -0700)]
ocfs2: fix a typo
s/cluter/cluster/
Link: https://lkml.kernel.org/r/20210324072931.5056-1-unixbhaskar@gmail.com
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joseph Qi [Fri, 30 Apr 2021 05:54:05 +0000 (22:54 -0700)]
ocfs2: map flags directly in flags_to_o2dlm()
Use macro map_flag() is tricky and coccicheck outputs the following
warning:
fs/ocfs2/stack_o2cb.c:69:5-16: Unneeded variable: "o2dlm_flags"
So map flags directly in flags_to_o2dlm() to make coccicheck happy.
And remove BUG_ON() here as well to simplify code since it runs well
a long time.
Link: https://lkml.kernel.org/r/1616138664-35935-1-git-send-email-joseph.qi@linux.alibaba.com
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Wengang Wang <wen.gang.wang@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yang Li [Fri, 30 Apr 2021 05:54:02 +0000 (22:54 -0700)]
ocfs2: replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
Fix the following coccicheck warning:
fs/ocfs2/blockcheck.c:232:0-23: WARNING: blockcheck_fops should be defined with DEFINE_DEBUGFS_ATTRIBUTE
Link: https://lkml.kernel.org/r/1614155230-57292-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zhang Yunkai [Fri, 30 Apr 2021 05:53:59 +0000 (22:53 -0700)]
arch/sh/include/asm/tlb.h: remove duplicate include
'asm-generic/tlb.h' included in 'asm/tlb.h' is duplicated.
Link: https://lkml.kernel.org/r/20210304132020.196811-1-zhang.yunkai@zte.com.cn
Signed-off-by: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Cc: Rich Felker <dalias@libc.org>
Cc: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Wan Jiabing [Fri, 30 Apr 2021 05:53:56 +0000 (22:53 -0700)]
scripts: a new script for checking duplicate struct declaration
checkdeclares: find struct declared more than once. Inspired by
checkincludes.pl.
This script checks for duplicate struct declares. Note that this will not
take into consideration macros, so you should run this only if you know
you do have real dups and do not have them under #ifdef's. You could also
just review the results.
[akpm@linux-foundation.org: fix usage message, grammar]
Link: https://lkml.kernel.org/r/20210401110943.1010796-1-wanjiabing@vivo.com
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tom Saeger [Fri, 30 Apr 2021 05:53:53 +0000 (22:53 -0700)]
scripts/spelling.txt: add entries for recent discoveries
Add a few entries for recent spelling fixes found.
Opportunistically de-dupe:
exeeds||exceeds
Link: https://lore.kernel.org/lkml/31acb3239b7ab8989db0c9951e8740050aef0205.1616727528.git.tom.saeger@oracle.com/
Link: https://lore.kernel.org/lkml/fa193b3c9e346ff3fc157b54802c29b25f79c402.1615597995.git.tom.saeger@oracle.com/
Link: https://lkml.kernel.org/r/4a594a9e1536b1d9e5ba57f684c1e41457dd383b.1616861645.git.tom.saeger@oracle.com
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Luc Van Oostenryck [Fri, 30 Apr 2021 05:53:50 +0000 (22:53 -0700)]
include/linux/compiler-gcc.h: sparse can do constant folding of __builtin_bswap*()
Sparse can do constant folding of __builtin_bswap*() since 2017. Also, a
much recent version of Sparse is needed anyway, see commit
6ec4476ac825
("Raise gcc version requirement to 4.9").
So, remove the comment about sparse not being yet able to constant fold
__builtin_bswap*() and remove the corresponding test of __CHECKER__.
Link: https://lkml.kernel.org/r/20210226092236.99369-1-luc.vanoostenryck@gmail.com
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:48 +0000 (22:53 -0700)]
ia64: module: fix symbolizer crash on fdescr
Noticed failure as a crash on ia64 when tried to symbolize all backtraces
collected by page_owner=on:
$ cat /sys/kernel/debug/page_owner
<oops>
CPU: 1 PID: 2074 Comm: cat Not tainted 5.12.0-rc4 #226
Hardware name: hp server rx3600, BIOS 04.03 04/08/2008
ip is at dereference_module_function_descriptor+0x41/0x100
Crash happens at dereference_module_function_descriptor() due to
use-after-free when dereferencing ".opd" section header.
All section headers are already freed after module is laoded successfully.
To keep symbolizer working the change stores ".opd" address and size after
module is relocated to a new place and before section headers are
discarded.
To make similar errors less obscure module_finalize() now zeroes out all
variables relevant to module loading only.
Link: https://lkml.kernel.org/r/20210403074803.3309096-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:45 +0000 (22:53 -0700)]
ia64: drop marked broken DISCONTIGMEM and VIRTUAL_MEM_MAP
DISCONTIGMEM was marked BROKEN in 5.11. Let's remove it.
Booted SPARSEMEM successfully on rx3600.
Link: https://lkml.kernel.org/r/20210404193440.2615358-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:42 +0000 (22:53 -0700)]
ia64: mca: always make IA64_MCA_DEBUG an expression
At least ia64_mca_log_sal_error_record() expects some statement:
static void ia64_mca_log_sal_error_record(int sal_info_type)
{
...
if (irq_safe)
IA64_MCA_DEBUG("CPU %d: SAL log contains %s error record
",
smp_processor_id(),
sal_info_type < ARRAY_SIZE(rec_name) ? rec_name[sal_info_type] : "UNKNOWN");
...
}
Instead of fixing all callers the change expicitly makes IA64_MCA_DEBUG
a non-empty expression.
Link: https://lkml.kernel.org/r/20210328215549.830420-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:39 +0000 (22:53 -0700)]
ia64: fix EFI_DEBUG build
When enabled local debugging via `#define EFI_DEBUG 1` noticed build
failure:
arch/ia64/kernel/efi.c:564:8: error: 'i' undeclared (first use in this function)
While at it fixed benign string format mismatches visible only when
EFI_DEBUG is enabled:
arch/ia64/kernel/efi.c:589:11:
warning: format '%lx' expects argument of type 'long unsigned int',
but argument 5 has type 'u64' {aka 'long long unsigned int'} [-Wformat=]
Link: https://lkml.kernel.org/r/20210328212246.685601-1-slyfox@gentoo.org
Fixes: 14fb42090943559 ("efi: Merge EFI system table revision and vendor checks")
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:53:36 +0000 (22:53 -0700)]
ia64: trivial spelling fixes
s/seralize/serialize/ .....three different places
Link: https://lkml.kernel.org/r/YFY+9uwvNLeb/3Ab@Gentoo
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:33 +0000 (22:53 -0700)]
ia64: simplify code flow around swiotlb init
Before the change CONFIG_INTEL_IOMMU && !CONFIG_SWIOTLB && !CONFIG_FLATMEM
could skip `set_max_mapnr(max_low_pfn);` if iommu is not present on
system.
Link: https://lkml.kernel.org/r/20210328202439.403601-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sergei Trofimovich [Fri, 30 Apr 2021 05:53:30 +0000 (22:53 -0700)]
ia64: drop unused IA64_FW_EMU ifdef
It's a remnant of deleted hpsim emulation target removed in
fc5bad037
("ia64: remove the hpsim platform").
Link: https://lkml.kernel.org/r/20210323224009.240625-1-slyfox@gentoo.org
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Valentin Schneider [Fri, 30 Apr 2021 05:53:27 +0000 (22:53 -0700)]
ia64: ensure proper NUMA distance and possible map initialization
John Paul reported a warning about bogus NUMA distance values spurred by
commit:
620a6dc40754 ("sched/topology: Make sched_init_numa() use a set for the deduplicating sort")
In this case, the afflicted machine comes up with a reported 256 possible
nodes, all of which are 0 distance away from one another. This was
previously silently ignored, but is now caught by the aforementioned
commit.
The culprit is ia64's node_possible_map which remains unchanged from its
initialization value of NODE_MASK_ALL. In John's case, the machine
doesn't have any SRAT nor SLIT table, but AIUI the possible map remains
untouched regardless of what ACPI tables end up being parsed. Thus,
!online && possible nodes remain with a bogus distance of 0 (distances \in
[0, 9] are "reserved and have no meaning" as per the ACPI spec).
Follow x86 / drivers/base/arch_numa's example and set the possible map to
the parsed map, which in this case seems to be the online map.
Link: http://lore.kernel.org/r/255d6b5d-194e-eb0e-ecdd-97477a534441@physik.fu-berlin.de
Link: https://lkml.kernel.org/r/20210318130617.896309-1-valentin.schneider@arm.com
Fixes: 620a6dc40754 ("sched/topology: Make sched_init_numa() use a set for the deduplicating sort")
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:53:24 +0000 (22:53 -0700)]
arch/ia64/include/asm/pgtable.h: minor typo fixes
s/migraton/migration/
Link: https://lkml.kernel.org/r/20210313045519.9310-1-unixbhaskar@gmail.com
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bhaskar Chowdhury [Fri, 30 Apr 2021 05:53:21 +0000 (22:53 -0700)]
arch/ia64/kernel/fsys.S: fix typos
Mundane spelling fixes.
Link: https://lkml.kernel.org/r/20210311061058.29492-1-unixbhaskar@gmail.com
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zhang Yunkai [Fri, 30 Apr 2021 05:53:18 +0000 (22:53 -0700)]
arch/ia64/kernel/head.S: remove duplicate include
'linux/pgtable.h' included in 'arch/ia64/kernel/head.S' is duplicated.
Link: https://lkml.kernel.org/r/20210303084549.179346-1-zhang.yunkai@zte.com.cn
Signed-off-by: Zhang Yunkai <zhang.yunkai@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 29 Apr 2021 21:32:00 +0000 (14:32 -0700)]
Merge tag 'kconfig-v5.13' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kconfig updates from Masahiro Yamada:
- Change 'option defconfig' to the environment variable
KCONFIG_DEFCONFIG_LIST
- Refactor tinyconfig without using allnoconfig_y
- Remove 'option allnoconfig_y' syntax
- Change 'option modules' to 'modules'
- Do not use /boot/config-* etc. as base config for cross-compilation
- Fix a search bug in nconf
- Various code cleanups
* tag 'kconfig-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
kconfig: refactor .gitignore
kconfig: highlight xconfig 'comment' lines with '***'
kconfig: highlight gconfig 'comment' lines with '***'
kconfig: gconf: remove unused code
kconfig: remove unused PACKAGE definition
kconfig: nconf: stop endless search loops
kconfig: split menu.c out of parser.y
kconfig: nconf: refactor in print_in_middle()
kconfig: nconf: remove meaningless wattrset() call from show_menu()
kconfig: nconf: change set_config_filename() to void function
kconfig: nconf: refactor attributes setup code
kconfig: nconf: remove unneeded default for menu prompt
kconfig: nconf: get rid of (void) casts from wattrset() calls
kconfig: nconf: fix NORMAL attributes
kconfig: mconf,nconf: remove unneeded '\0' termination after snprintf()
kconfig: use /boot/config-* etc. as DEFCONFIG_LIST only for native build
kconfig: change sym_change_count to a boolean flag
kconfig: nconf: fix core dump when searching in empty menu
kconfig: lxdialog: A spello fix and a punctuation added
kconfig: streamline_config.pl: Couple of typo fixes
...
Linus Torvalds [Thu, 29 Apr 2021 21:24:39 +0000 (14:24 -0700)]
Merge tag 'kbuild-v5.13' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Evaluate $(call cc-option,...) etc. only for build targets
- Add CONFIG_VMLINUX_MAP to generate .map file when linking vmlinux
- Remove unnecessary --gcc-toolchains Clang flag because the --prefix
flag finds the toolchains
- Do not pass Clang's --prefix flag when using the integrated as
- Check the assembler version in Kconfig time
- Add new CONFIG options, AS_VERSION, AS_IS_GNU, AS_IS_LLVM to clean up
some dependencies in Kconfig
- Fix invalid Module.symvers creation when building only modules
without vmlinux
- Fix false-positive modpost warnings when CONFIG_TRIM_UNUSED_KSYMS is
set, but there is no module to build
- Refactor module installation Makefile
- Support zstd for module compression
- Convert alpha and ia64 to use generic shell scripts to generate the
syscall headers
- Add a new elfnote to indicate if the kernel was built with LTO, which
will be used by pahole
- Flatten the directory structure under include/config/ so CONFIG
options and filenames match
- Change the deb source package name from linux-$(KERNELRELEASE) to
linux-upstream
* tag 'kbuild-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (42 commits)
kbuild: Add $(KBUILD_HOSTLDFLAGS) to 'has_libelf' test
kbuild: deb-pkg: change the source package name to linux-upstream
tools: do not include scripts/Kbuild.include
kbuild: redo fake deps at include/config/*.h
kbuild: remove TMPO from try-run
MAINTAINERS: add pattern for dummy-tools
kbuild: add an elfnote for whether vmlinux is built with lto
ia64: syscalls: switch to generic syscallhdr.sh
ia64: syscalls: switch to generic syscalltbl.sh
alpha: syscalls: switch to generic syscallhdr.sh
alpha: syscalls: switch to generic syscalltbl.sh
sysctl: use min() helper for namecmp()
kbuild: add support for zstd compressed modules
kbuild: remove CONFIG_MODULE_COMPRESS
kbuild: merge scripts/Makefile.modsign to scripts/Makefile.modinst
kbuild: move module strip/compression code into scripts/Makefile.modinst
kbuild: refactor scripts/Makefile.modinst
kbuild: rename extmod-prefix to extmod_prefix
kbuild: check module name conflict for external modules as well
kbuild: show the target directory for depmod log
...
Linus Torvalds [Thu, 29 Apr 2021 18:57:23 +0000 (11:57 -0700)]
Merge tag 'net-next-5.13' of git://git./linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"
* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...
Linus Torvalds [Thu, 29 Apr 2021 18:41:43 +0000 (11:41 -0700)]
Merge tag 'x86-mm-2021-04-29' of git://git./linux/kernel/git/tip/tip
Pull x86 tlb updates from Ingo Molnar:
"The x86 MM changes in this cycle were:
- Implement concurrent TLB flushes, which overlaps the local TLB
flush with the remote TLB flush.
In testing this improved sysbench performance measurably by a
couple of percentage points, especially if TLB-heavy security
mitigations are active.
- Further micro-optimizations to improve the performance of TLB
flushes"
* tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp: Micro-optimize smp_call_function_many_cond()
smp: Inline on_each_cpu_cond() and on_each_cpu()
x86/mm/tlb: Remove unnecessary uses of the inline keyword
cpumask: Mark functions as pure
x86/mm/tlb: Do not make is_lazy dirty for no reason
x86/mm/tlb: Privatize cpu_tlbstate
x86/mm/tlb: Flush remote and local TLBs concurrently
x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy()
x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()
smp: Run functions concurrently in smp_call_function_many_cond()
Linus Torvalds [Thu, 29 Apr 2021 18:36:47 +0000 (11:36 -0700)]
Merge tag 'microblaze-v5.13' of git://git.monstr.eu/linux-2.6-microblaze
Pull Microblaze updates from Michal Simek:
"No new features, just about cleaning up some code and moving to
generic syscall solution used by other architectures:
- Switch to generic syscall scripts
- Some small fixes"
* tag 'microblaze-v5.13' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: add 'fallthrough' to memcpy/memset/memmove
microblaze: Fix a typo
microblaze: tag highmem_setup() with __meminit
microblaze: syscalls: switch to generic syscallhdr.sh
microblaze: syscalls: switch to generic syscalltbl.sh
Linus Torvalds [Thu, 29 Apr 2021 18:28:08 +0000 (11:28 -0700)]
Merge tag 'mips_5.13' of git://git./linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer:
- removed get_fs/set_fs
- removed broken/unmaintained MIPS KVM trap and emulate support
- added support for Loongson-2K1000
- fixes and cleanups
* tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits)
MIPS: BCM63XX: Use BUG_ON instead of condition followed by BUG.
MIPS: select ARCH_KEEP_MEMBLOCK unconditionally
mips: Do not include hi and lo in clobber list for R6
MIPS:DTS:Correct the license for Loongson-2K
MIPS:DTS:Fix label name and interrupt number of ohci for Loongson-2K
MIPS: Avoid handcoded DIVU in `__div64_32' altogether
lib/math/test_div64: Correct the spelling of "dividend"
lib/math/test_div64: Fix error message formatting
mips/bootinfo:correct some comments of fw_arg
MIPS: Avoid DIVU in `__div64_32' is result would be zero
MIPS: Reinstate platform `__div64_32' handler
div64: Correct inline documentation for `do_div'
lib/math: Add a `do_div' test module
MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE
MIPS: pci-legacy: revert "use generic pci_enable_resources"
MIPS: Loongson64: Add kexec/kdump support
MIPS: pci-legacy: use generic pci_enable_resources
MIPS: pci-legacy: remove busn_resource field
MIPS: pci-legacy: remove redundant info messages
MIPS: pci-legacy: stop using of_pci_range_to_resource
...
Linus Torvalds [Thu, 29 Apr 2021 18:06:13 +0000 (11:06 -0700)]
Merge tag 'fsnotify_for_v5.13-rc1' of git://git./linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
- support for limited fanotify functionality for unpriviledged users
- faster merging of fanotify events
- a few smaller fsnotify improvements
* tag 'fsnotify_for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
shmem: allow reporting fanotify events with file handles on tmpfs
fs: introduce a wrapper uuid_to_fsid()
fanotify_user: use upper_32_bits() to verify mask
fanotify: support limited functionality for unprivileged users
fanotify: configurable limits via sysfs
fanotify: limit number of event merge attempts
fsnotify: use hash table for faster events merge
fanotify: mix event info and pid into merge key hash
fanotify: reduce event objectid to 29-bit hash
fsnotify: allow fsnotify_{peek,remove}_first_event with empty queue
Linus Torvalds [Thu, 29 Apr 2021 17:51:29 +0000 (10:51 -0700)]
Merge tag 'for_v5.13-rc1' of git://git./linux/kernel/git/jack/linux-fs
Pull quota, ext2, reiserfs updates from Jan Kara:
- support for path (instead of device) based quotactl syscall
(quotactl_path(2))
- ext2 conversion to kmap_local()
- other minor cleanups & fixes
* tag 'for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fs/reiserfs/journal.c: delete useless variables
fs/ext2: Replace kmap() with kmap_local_page()
ext2: Match up ext2_put_page() with ext2_dotdot() and ext2_find_entry()
fs/ext2/: fix misspellings using codespell tool
quota: report warning limits for realtime space quotas
quota: wire up quotactl_path
quota: Add mountpath based quota support
Linus Torvalds [Thu, 29 Apr 2021 17:43:51 +0000 (10:43 -0700)]
Merge tag 'xfs-5.13-merge-3' of git://git./fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"The notable user-visible addition this cycle is ability to remove
space from the last AG in a filesystem. This is the first of many
changes needed for full-fledged support for shrinking a filesystem.
Still needed are (a) the ability to reorganize files and metadata away
from the end of the fs; (b) the ability to remove entire allocation
groups; (c) shrink support for realtime volumes; and (d) thorough
testing of (a-c).
There are a number of performance improvements in this code drop: Dave
streamlined various parts of the buffer logging code and reduced the
cost of various debugging checks, and added the ability to pre-create
the xattr structures while creating files. Brian eliminated
transaction reservations that were being held across writeback (thus
reducing livelock potential.
Other random pieces: Pavel fixed the repetitve warnings about
deprecated mount options, I fixed online fsck to behave itself when a
readonly remount comes in during scrub, and refactored various other
parts of that code, Christoph contributed a lot of refactoring this
cycle. The xfs_icdinode structure has been absorbed into the (incore)
xfs_inode structure, and the format and flags handling around
xfs_inode_fork structures has been simplified. Chandan provided a
number of fixes for extent count overflow related problems that have
been shaken out by debugging knobs added during 5.12.
Summary:
- Various minor fixes in online scrub.
- Prevent metadata files from being automatically inactivated.
- Validate btree heights by the computed per-btree limits.
- Don't warn about remounting with deprecated mount options.
- Initialize attr forks at create time if we suspect we're going to
need to store them.
- Reduce memory reallocation workouts in the logging code.
- Fix some theoretical math calculation errors in logged buffers that
span multiple discontig memory ranges but contiguous ondisk
regions.
- Speedups in dirty buffer bitmap handling.
- Make type verifier functions more inline-happy to reduce overhead.
- Reduce debug overhead in directory checking code.
- Many many typo fixes.
- Begin to handle the permanent loss of the very end of a filesystem.
- Fold struct xfs_icdinode into xfs_inode.
- Deprecate the long defunct BMV_IF_NO_DMAPI_READ from the bmapx
ioctl.
- Remove a broken directory block format check from online scrub.
- Fix a bug where we could produce an unnecessarily tall data fork
btree when creating an attr fork.
- Fix scrub and readonly remounts racing.
- Fix a writeback ioend log deadlock problem by dropping the behavior
where we could preallocate a setfilesize transaction.
- Fix some bugs in the new extent count checking code.
- Fix some bugs in the attr fork preallocation code.
- Refactor if_flags out of the incore inode fork data structure"
* tag 'xfs-5.13-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (77 commits)
xfs: remove xfs_quiesce_attr declaration
xfs: remove XFS_IFEXTENTS
xfs: remove XFS_IFINLINE
xfs: remove XFS_IFBROOT
xfs: only look at the fork format in xfs_idestroy_fork
xfs: simplify xfs_attr_remove_args
xfs: rename and simplify xfs_bmap_one_block
xfs: move the XFS_IFEXTENTS check into xfs_iread_extents
xfs: drop unnecessary setfilesize helper
xfs: drop unused ioend private merge and setfilesize code
xfs: open code ioend needs workqueue helper
xfs: drop submit side trans alloc for append ioends
xfs: fix return of uninitialized value in variable error
xfs: get rid of the ip parameter to xchk_setup_*
xfs: fix scrub and remount-ro protection when running scrub
xfs: move the check for post-EOF mappings into xfs_can_free_eofblocks
xfs: move the xfs_can_free_eofblocks call under the IOLOCK
xfs: precalculate default inode attribute offset
xfs: default attr fork size does not handle device inodes
xfs: inode fork allocation depends on XFS_IFEXTENT flag
...
Linus Torvalds [Thu, 29 Apr 2021 17:33:35 +0000 (10:33 -0700)]
Merge tag 'gfs2-for-5.13' of git://git./linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Fix some compiler and kernel-doc warnings
- Various minor cleanups and optimizations
- Add a new sysfs gfs2 status file with some filesystem wide
information
* tag 'gfs2-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix fall-through warnings for Clang
gfs2: Fix a number of kernel-doc warnings
gfs2: Make gfs2_setattr_simple static
gfs2: Add new sysfs file for gfs2 status
gfs2: Silence possible null pointer dereference warning
gfs2: Turn gfs2_meta_indirect_buffer into gfs2_meta_buffer
gfs2: Replace gfs2_lblk_to_dblk with gfs2_get_extent
gfs2: Turn gfs2_extent_map into gfs2_{get,alloc}_extent
gfs2: Add new gfs2_iomap_get helper
gfs2: Remove unused variable sb_format
gfs2: Fix dir.c function parameter descriptions
gfs2: Eliminate gh parameter from go_xmote_bh func
gfs2: don't create empty buffers for NO_CREATE
Linus Torvalds [Thu, 29 Apr 2021 17:32:18 +0000 (10:32 -0700)]
Merge tag 'exfat-for-5.13-rc1' of git://git./linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Improve write performance with dirsync mount option
- Improve lookup performance
- Add support for FITRIM ioctl
- Fix a bug with discard option
* tag 'exfat-for-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: speed up iterate/lookup by fixing start point of traversing cluster chain
exfat: improve write performance when dirsync enabled
exfat: add support ioctl and FITRIM function
exfat: introduce bitmap_lock for cluster bitmap access
exfat: fix erroneous discard when clear cluster bit
Linus Torvalds [Thu, 29 Apr 2021 00:22:10 +0000 (17:22 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This consists of the usual driver updates (ufs, target, tcmu,
smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx).
The major core change is using a sbitmap instead of an atomic for
queue tracking"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (412 commits)
scsi: target: tcm_fc: Fix a kernel-doc header
scsi: target: Shorten ALUA error messages
scsi: target: Fix two format specifiers
scsi: target: Compare explicitly with SAM_STAT_GOOD
scsi: sd: Introduce a new local variable in sd_check_events()
scsi: dc395x: Open-code status_byte(u8) calls
scsi: 53c700: Open-code status_byte(u8) calls
scsi: smartpqi: Remove unused functions
scsi: qla4xxx: Remove an unused function
scsi: myrs: Remove unused functions
scsi: myrb: Remove unused functions
scsi: mpt3sas: Fix two kernel-doc headers
scsi: fcoe: Suppress a compiler warning
scsi: libfc: Fix a format specifier
scsi: aacraid: Remove an unused function
scsi: core: Introduce enum scsi_disposition
scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case
scsi: core: Rename scsi_softirq_done() into scsi_complete()
scsi: core: Remove an incorrect comment
scsi: core: Make the scsi_alloc_sgtables() documentation more accurate
...
Linus Torvalds [Thu, 29 Apr 2021 00:19:47 +0000 (17:19 -0700)]
Merge tag 'vfio-v5.13-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Embed struct vfio_device into vfio driver structures (Jason
Gunthorpe)
- Make vfio_mdev type safe (Jason Gunthorpe)
- Remove vfio-pci NVLink2 extensions for POWER9 (Christoph Hellwig)
- Update vfio-pci IGD extensions for OpRegion 2.1+ (Fred Gao)
- Various spelling/blank line fixes (Zhen Lei, Zhou Wang, Bhaskar
Chowdhury)
- Simplify unpin_pages error handling (Shenming Lu)
- Fix i915 mdev Kconfig dependency (Arnd Bergmann)
- Remove unused structure member (Keqian Zhu)
* tag 'vfio-v5.13-rc1' of git://github.com/awilliam/linux-vfio: (43 commits)
vfio/gvt: fix DRM_I915_GVT dependency on VFIO_MDEV
vfio/iommu_type1: Remove unused pinned_page_dirty_scope in vfio_iommu
vfio/mdev: Correct the function signatures for the mdev_type_attributes
vfio/mdev: Remove kobj from mdev_parent_ops->create()
vfio/gvt: Use mdev_get_type_group_id()
vfio/gvt: Make DRM_I915_GVT depend on VFIO_MDEV
vfio/mbochs: Use mdev_get_type_group_id()
vfio/mdpy: Use mdev_get_type_group_id()
vfio/mtty: Use mdev_get_type_group_id()
vfio/mdev: Add mdev/mtype_get_type_group_id()
vfio/mdev: Remove duplicate storage of parent in mdev_device
vfio/mdev: Add missing error handling to dev_set_name()
vfio/mdev: Reorganize mdev_device_create()
vfio/mdev: Add missing reference counting to mdev_type
vfio/mdev: Expose mdev_get/put_parent to mdev_private.h
vfio/mdev: Use struct mdev_type in struct mdev_device
vfio/mdev: Simplify driver registration
vfio/mdev: Add missing typesafety around mdev_device
vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer
vfio/mdev: Fix missing static's on MDEV_TYPE_ATTR's
...
Linus Torvalds [Thu, 29 Apr 2021 00:13:56 +0000 (17:13 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"Here's a collection of largely clk driver updates. The usual suspects
are here: i.MX, Qualcomm, Renesas, Allwinner, Samsung, and Rockchip,
but it feels pretty light on commits.
There's only one real commit to the framework core and that's to
consolidate code. Otherwise the diffstat is dominated by many Qualcomm
clk driver patches that modernize the driver for the proper way of
speciying clk parents. That's shifting data around, which could subtly
break things so I'll be on the lookout for fixes.
New Drivers:
- Proper clk driver for Mediatek MT7621 SoCs
- Support for the clock controller on the new Rockchip rk3568
Updates:
- Simplify Zynq Kconfig dependencies
- Use clk_hw pointers in socfpga driver
- Cleanup parent data in qcom clk drivers
- Some cleanups for rk3399 modularization
- Fix reparenting of i.MX UART clocks by initializing only the ones
associated to stdout
- Correct the PCIE clocks for i.MX8MP and i.MX8MQ
- Make i.MX LPCG and SCU clocks return on registering failure
- Kernel doc fixes
- Add DAB hardware accelerator clocks on Renesas R-Car E3 and M3-N
- Add timer (TMU) clocks on Renesas R-Car H3 ES1.0
- Add Timer (TMU & CMT) and thermal sensor (TSC) clocks on
Renesas R-Car V3U
- Sigma-delta modulation on Allwinner V3s audio PLL"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (82 commits)
MAINTAINERS: add MT7621 CLOCK maintainer
staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'
staging: mt7621-dts: make use of new 'mt7621-clk'
clk: ralink: add clock driver for mt7621 SoC
clk: uniphier: Fix potential infinite loop
clk: qcom: rpmh: add support for SDX55 rpmh IPA clock
clk: qcom: gcc-sdm845: get rid of the test clock
clk: qcom: convert SDM845 Global Clock Controller to parent_data
dt-bindings: clock: separate SDM845 GCC clock bindings
clk: qcom: apss-ipq-pll: Add missing MODULE_DEVICE_TABLE
clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE
clk: qcom: a7-pll: Add missing MODULE_DEVICE_TABLE
dt: bindings: add mt7621-sysc device tree binding documentation
dt-bindings: clock: add dt binding header for mt7621 clocks
clk: samsung: Remove redundant dev_err calls
clk: zynqmp: pll: add set_pll_mode to check condition in zynqmp_pll_enable
clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback
clk: zynqmp: Drop dependency on ARCH_ZYNQMP
clk: zynqmp: Enable the driver if ZYNQMP_FIRMWARE is selected
clk: qcom: gcc-sm8350: use ARRAY_SIZE instead of specifying num_parents
...
Linus Torvalds [Wed, 28 Apr 2021 23:10:33 +0000 (16:10 -0700)]
Merge tag 'mailbox-v5.13' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
"qcom:
- enable support for SM8350 and SC7280
sprd:
- refcount channel usage
- specify interrupt names in dt
- support sc9863a
arm:
- drop redundant print
ti:
- convert dt-bindings to json schema
and misc spelling fixes"
* tag 'mailbox-v5.13' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
dt-bindings: mailbox: qcom-ipcc: Add compatible for SC7280
dt-bindings: mailbox: ti,secure-proxy: Convert to json schema
mailbox: arm_mhu_db: Remove redundant dev_err call in mhu_db_probe()
mailbox: sprd: Add supplementary inbox support
dt-bindings: mailbox: Add interrupt-names to SPRD mailbox
mailbox: sprd: Introduce refcnt when clients requests/free channels
MAINTAINERS: Add DT bindings directory to mailbox
mailbox: fix various typos in comments
mailbox: pcc: fix platform_no_drv_owner.cocci warnings
dt-bindings: mailbox: Add compatible for SM8350 IPCC
Linus Torvalds [Wed, 28 Apr 2021 23:02:58 +0000 (16:02 -0700)]
Merge tag 'backlight-next-5.13' of git://git./linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Device Support:
- Add support for PMI8994 to Qualcom WLED
- Add support for KTD259 to Kinetic KTD253
Fix-ups:
- Device Tree related fix-ups; kinetic,ktd253
- Use proper sequence during sync_toggle; qcom-wled
- Fix Wmisleading-indentation warnings; jornada720_bl
Bug Fixes:
- Fix sync toggle on WLED4; qcom-wled
- Fix FSC update on WLED5; qcom-wled"
* tag 'backlight-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: journada720: Fix Wmisleading-indentation warning
backlight: qcom-wled: Correct the sync_toggle sequence
backlight: qcom-wled: Fix FSC update issue for WLED5
dt-bindings: backlight: Add Kinetic KTD259 bindings
backlight: ktd253: Support KTD259
backlight: qcom-wled: Use sink_addr for sync toggle
dt-bindings: backlight: qcom-wled: Add PMI8994 compatible
Linus Torvalds [Wed, 28 Apr 2021 22:59:13 +0000 (15:59 -0700)]
Merge tag 'mfd-next-5.13' of git://git./linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Framework:
- Add support for Software Nodes to MFD Core
- Remove support for Device Properties from MFD Core
- Use standard APIs in MFD Core
New Drivers:
- Add support for ROHM BD9576MUF and BD9573MUF PMICs
- Add support for Netronix Embedded Controller, PWM and RTC
- Add support for Actions Semi ATC260x PMICs and OnKey
New Device Support:
- Add support for DG1 PCIe Graphics Card to Intel PMT
- Add support for ROHM
BD71815 PMIC to ROHM
BD71828
- Add support for Tolino Shine 2 HD to Netronix Embedded Controller
- Add support for AX10 BMC Secure Updates to Intel M10 BMC
Removed Device Support:
- Remove Arizona Extcon support from MFD
- Remove ST-E AB8500 Power Supply code from MFD
- Remove AB3100 altogether
New Functionality:
- Add support for SMBus and I2C modes to Dialog DA9063
- Switch to using Software Nodes in Intel (various)
New/converted Device Tree bindings:
- rohm
bd71815-pmic, rohm bd9576-pmic, netronix ntxec, actions
atc260x, ricoh rn5t618, qcom pm8xxx
- Fix-ups:
- Fix error handling/path; intel_pmt
- Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc
- Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618,
max8997
- Use correct data-type; db8500-prcmu
- Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl
- Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio
- Regmap related fix-ups; intel-m10-bmc, sec-core
- Reorder resource freeing during remove; intel_quark_i2c_gpio
- Make table indexing more robust; intel_quark_i2c_gpio
- Fix reference imbalances; arizona-irq
- Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930,
intel-lpss-acpi, intel-lpss-pci, atc260x-i2c, intel_quark_i2c_gpio
Bug Fixes:
- Fix incorrect (register) values; intel-m10-bmc
- Kconfig related fixes; ABX500_CORE
- Do not clear the Auto Reload Register; stm32-timers"
* tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (84 commits)
mfd: intel-m10-bmc: Add support for MAX10 BMC Secure Updates
Revert "mfd: max8997: Add of_compatible to Extcon and Charger mfd_cell"
mfd: twl: Remove unused inline function twl4030charger_usb_en()
dt-bindings: mfd: Convert pm8xxx bindings to yaml
dt-bindings: mfd: Add compatible for pmk8350 rtc
i2c: designware: Get rid of legacy platform data
mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes
mfd: lpc_sch: Partially revert "Add support for Intel Quark X1000"
mfd: arizona: Fix rumtime PM imbalance on error
mfd: max8997: Replace 8998 with 8997
mfd: core: Use acpi_find_child_device() for child devices lookup
mfd: intel_quark_i2c_gpio: Don't play dirty trick with const
mfd: intel_quark_i2c_gpio: Enable MSI interrupt
mfd: intel_quark_i2c_gpio: Reuse BAR definitions for MFD cell indexing
mfd: ntxec: Support for EC in Tolino Shine 2 HD
mfd: stm32-timers: Avoid clearing auto reload register
mfd: intel_quark_i2c_gpio: Replace I²C speeds with descriptive definitions
mfd: intel_quark_i2c_gpio: Remove unused struct device member
mfd: intel_quark_i2c_gpio: Unregister resources in reversed order
mfd: Kconfig: ABX500_CORE should depend on ARCH_U8500
...
Linus Torvalds [Wed, 28 Apr 2021 22:56:51 +0000 (15:56 -0700)]
Merge tag 'mmc-v5.13' of git://git./linux/kernel/git/ulfh/mmc
Pull MMC and MEMSTICK updates from Ulf Hansson:
"MMC core:
- Fix hanging on I/O during system suspend for removable cards
- Set read only for SD cards with permanent write protect bit
- Power cycle the SD/SDIO card if CMD11 fails for UHS voltage
- Issue a cache flush for eMMC only when it's enabled
- Adopt to updated cache ctrl settings for eMMC from MMC ioctls
- Use use device property API when parsing voltages
- Don't retry eMMC sanitize cmds
- Use the timeout from the MMC ioctl for eMMC santize cmds
MMC host:
- mmc_spi: Make of_mmc_spi.c resource provider agnostic
- mmc_spi: Use polling for card detect even without voltage-ranges
- sdhci: Check for reset prior to DMA address unmap
- sdhci-acpi: Add support for the AMDI0041 eMMC controller variant
- sdhci-esdhc-imx: Depending on OF Kconfig and cleanup code
- sdhci-pci: Add PCI IDs for Intel LKF
- sdhci-pci: Fix initialization of some SD cards for Intel BYT
- sdhci-pci-gli: Various improvements for GL97xx variants
- sdhci-of-dwcmshc: Enable support for MMC_CAP_WAIT_WHILE_BUSY
- sdhci-of-dwcmshc: Add ACPI support for BlueField-3 SoC
- sdhci-of-dwcmshc: Add Rockchip platform support
- tmio/renesas_sdhi: Extend support for reset and use a reset controller
- tmio/renesas_sdhi: Enable support for MMC_CAP_WAIT_WHILE_BUSY
- tmio/renesas_sdhi: Various improvements
MEMSTICK:
- Minor improvements/cleanups"
* tag 'mmc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (79 commits)
mmc: block: Issue a cache flush only when it's enabled
memstick: r592: ignore kfifo_out() return code again
mmc: block: Update ext_csd.cache_ctrl if it was written
mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic
mmc: mmc_spi: Use already parsed IRQ
mmc: mmc_spi: Drop unused NO_IRQ definition
mmc: mmc_spi: Set up polling even if voltage-ranges is not present
mmc: core: Convert mmc_of_parse_voltage() to use device property API
mmc: core: Correct descriptions in mmc_of_parse()
mmc: dw_mmc-rockchip: Just set default sample value for legacy mode
mmc: sdhci-s3c: constify uses of driver/match data
mmc: sdhci-s3c: correct kerneldoc of sdhci_s3c_drv_data
mmc: sdhci-s3c: simplify getting of_device_id match data
mmc: tmio: always restore irq register
mmc: sdhci-pci-gli: Enlarge ASPM L1 entry delay of GL975x
mmc: core: Let eMMC sanitize not retry in case of timeout/failure
mmc: core: Add a retries parameter to __mmc_switch function
memstick: r592: remove unused variable
mmc: sdhci-st: Remove unnecessary error log
mmc: sdhci-msm: Remove unnecessary error log
...
Linus Torvalds [Wed, 28 Apr 2021 22:54:57 +0000 (15:54 -0700)]
Merge tag 'for-linus-5.13-1' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"A bunch of little cleanups
Nothing major, no functional changes"
* tag 'for-linus-5.13-1' of git://github.com/cminyard/linux-ipmi:
ipmi_si: Join string literals back
ipmi_si: Drop redundant check before calling put_device()
ipmi_si: Use strstrip() to remove surrounding spaces
ipmi_si: Get rid of ->addr_source_cleanup()
ipmi_si: Reuse si_to_str[] array in ipmi_hardcode_init_one()
ipmi_si: Introduce ipmi_panic_event_str[] array
ipmi_si: Use proper ACPI macros to check error code for failures
ipmi_si: Utilize temporary variable to hold device pointer
ipmi_si: Remove bogus err_free label
ipmi_si: Switch to use platform_get_mem_or_io()
ipmi: Handle device properties with software node API
ipmi:ssif: make ssif_i2c_send() void
ipmi: Refine retry conditions for getting device id
Linus Torvalds [Wed, 28 Apr 2021 22:50:24 +0000 (15:50 -0700)]
Merge tag 'devicetree-for-5.13' of git://git./linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
- Refactor powerpc and arm64 kexec DT handling to common code. This
enables IMA on arm64.
- Add kbuild support for applying DT overlays at build time. The first
user are the DT unittests.
- Fix kerneldoc formatting and W=1 warnings in drivers/of/
- Fix handling 64-bit flag on PCI resources
- Bump dtschema version required to v2021.2.1
- Enable undocumented compatible checks for dtbs_check. This allows
tracking of missing binding schemas.
- DT docs improvements. Regroup the DT docs and add the example schema
and DT kernel ABI docs to the doc build.
- Convert Broadcom Bluetooth and video-mux bindings to schema
- Add QCom sm8250 Venus video codec binding schema
- Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile
Technologies Inc.
- Cleanup of DT schema type references on common properties and
standard unit properties
* tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (64 commits)
powerpc: If kexec_build_elf_info() fails return immediately from elf64_load()
powerpc: Free fdt on error in elf64_load()
of: overlay: Fix kerneldoc warning in of_overlay_remove()
of: linux/of.h: fix kernel-doc warnings
of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses
dt-bindings: bcm4329-fmac: add optional brcm,ccode-map
docs: dt: update writing-schema.rst references
dt-bindings: media: venus: Add sm8250 dt schema
of: base: Fix spelling issue with function param 'prop'
docs: dt: Add DT API documentation
of: Add missing 'Return' section in kerneldoc comments
of: Fix kerneldoc output formatting
docs: dt: Group DT docs into relevant sub-sections
docs: dt: Make 'Devicetree' wording more consistent
docs: dt: writing-schema: Include the example schema in the doc build
docs: dt: writing-schema: Remove spurious indentation
dt-bindings: Fix reference in submitting-patches.rst to the DT ABI doc
dt-bindings: ddr: Add optional manufacturer and revision ID to LPDDR3
dt-bindings: media: video-interfaces: Drop the example
devicetree: bindings: clock: Minor typo fix in the file armada3700-tbg-clock.txt
...
Linus Torvalds [Wed, 28 Apr 2021 22:43:58 +0000 (15:43 -0700)]
Merge tag 'for-v5.13' of git://git./linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"battery/charger driver changes:
- core:
- provide function stubs if CONFIG_POWER_SUPPLY=n
- reduce loglevel for probe defer info
- surface:
- new battery and charger drivers for Surface
- bq27xxx:
- add bq78z100 support
- fix current_now/power_avg for newer chips
- cw2015:
- add CHARGE_NOW support
- ab8500:
- drop pdata support
- convert most DT bindings to YAML
- lots of minor fixes and cleanups
reset drivers:
- ltc2952-poweroff:
- make trigger delay configurable from DT
- minor fixes and cleanups"
* tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (97 commits)
power: supply: cpcap-battery: fix invalid usage of list cursor
power: supply: bq256xx: add kerneldoc for structure members
power: supply: act8945a: correct kerneldoc
power: supply: max17040: remove unneeded double cast
power: supply: max17040: handle device_property_read_u8_array() failure
power: supply: max14577: remove unneeded variable initialization
power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static
power: supply: surface-battery: Make some symbols static
power: reset: restart-poweroff: Add missing MODULE_DEVICE_TABLE
power: reset: hisi-reboot: add missing MODULE_DEVICE_TABLE
power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
power: supply: Add AC driver for Surface Aggregator Module
power: supply: Add battery driver for Surface Aggregator Module
power: supply: bq25980: Move props from battery node
power: supply: core: Use true and false for bool variable
power: supply: goldfish: Remove the GOLDFISH dependency
power: reset: ltc2952: make trigger delay configurable
power: supply: cpcap-charger: Simplify bool conversion
power: supply: cpcap-charger: Add usleep to cpcap charger to avoid usb plug bounce
...
Linus Torvalds [Wed, 28 Apr 2021 22:39:38 +0000 (15:39 -0700)]
Merge tag 'hsi-for-5.13' of git://git./linux/kernel/git/sre/linux-hsi
Pull HSI update from Sebastian Reichel:
- memory leak fix in hsi_add_client_from_dt() error path
* tag 'hsi-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: core: fix resource leaks in hsi_add_client_from_dt()
Linus Torvalds [Wed, 28 Apr 2021 21:56:09 +0000 (14:56 -0700)]
Merge tag 'for-5.13/io_uring-2021-04-27' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
- Support for multi-shot mode for POLL requests
- More efficient reference counting. This is shamelessly stolen from
the mm side. Even though referencing is mostly single/dual user, the
128 count was retained to keep the code the same. Maybe this
should/could be made generic at some point.
- Removal of the need to have a manager thread for each ring. The
manager threads only job was checking and creating new io-threads as
needed, instead we handle this from the queue path.
- Allow SQPOLL without CAP_SYS_ADMIN or CAP_SYS_NICE. Since 5.12, this
thread is "just" a regular application thread, so no need to restrict
use of it anymore.
- Cleanup of how internal async poll data lifetime is managed.
- Fix for syzbot reported crash on SQPOLL cancelation.
- Make buffer registration more like file registrations, which includes
flexibility in avoiding full set unregistration and re-registration.
- Fix for io-wq affinity setting.
- Be a bit more defensive in task->pf_io_worker setup.
- Various SQPOLL fixes.
- Cleanup of SQPOLL creds handling.
- Improvements to in-flight request tracking.
- File registration cleanups.
- Tons of cleanups and little fixes
* tag 'for-5.13/io_uring-2021-04-27' of git://git.kernel.dk/linux-block: (156 commits)
io_uring: maintain drain logic for multishot poll requests
io_uring: Check current->io_uring in io_uring_cancel_sqpoll
io_uring: fix NULL reg-buffer
io_uring: simplify SQPOLL cancellations
io_uring: fix work_exit sqpoll cancellations
io_uring: Fix uninitialized variable up.resv
io_uring: fix invalid error check after malloc
io_uring: io_sq_thread() no longer needs to reset current->pf_io_worker
kernel: always initialize task->pf_io_worker to NULL
io_uring: update sq_thread_idle after ctx deleted
io_uring: add full-fledged dynamic buffers support
io_uring: implement fixed buffers registration similar to fixed files
io_uring: prepare fixed rw for dynanic buffers
io_uring: keep table of pointers to ubufs
io_uring: add generic rsrc update with tags
io_uring: add IORING_REGISTER_RSRC
io_uring: enumerate dynamic resources
io_uring: add generic path for rsrc update
io_uring: preparation for rsrc tagging
io_uring: decouple CQE filling from requests
...
Linus Torvalds [Wed, 28 Apr 2021 21:50:20 +0000 (14:50 -0700)]
Merge tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block
Pull libata updates from Jens Axboe:
"Mostly cleanups this time, but also a few additions:
- kernel-doc cleanups and sanitization (Lee)
- Spelling fix (Bhaskar)
- Fix ata_qc_from_tag() return value check in dwc_460ex (Dinghao)
- Fall-through warning fix (Gustavo)
- IRQ registration fixes (Sergey)
- Add AHCI support for Tegra186 (Sowjanya)
- Add xiling phy support for AHCI (Piyush)
- SXS disable fix for AHCI for Hisilicon Kunpeng920 (Xingui)
- pata legacy probe mask support (Maciej)"
* tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block: (54 commits)
libata: Fix fall-through warnings for Clang
pata_ipx4xx_cf: Fix unsigned comparison with less than zero
ata: ahci_tegra: call tegra_powergate_power_off only when PM domain is not present
ata: ahci_tegra: Add AHCI support for Tegra186
dt-binding: ata: tegra: Add dt-binding documentation for Tegra186
dt-bindings: ata: tegra: Convert binding documentation to YAML
pata_legacy: Add `probe_mask' parameter like with ide-generic
pata_platform: Document `pio_mask' module parameter
pata_legacy: Properly document module parameters
ata: ahci: ceva: Updated code by using dev_err_probe()
ata: ahci: Disable SXS for Hisilicon Kunpeng920
ata: libahci_platform: fix IRQ check
sata_mv: add IRQ checks
ata: pata_acpi: Fix some incorrect function param descriptions
ata: libata-acpi: Fix function name and provide description for 'prev_gtf'
ata: sata_mv: Fix misnaming of 'mv_bmdma_stop()'
ata: pata_cs5530: Fix misspelling of 'cs5530_init_one()'s 'pdev' param
ata: pata_legacy: Repair a couple kernel-doc problems
ata: ata_generic: Fix misspelling of 'ata_generic_init_one()'
ata: pata_opti: Fix spelling issue of 'val' in 'opti_write_reg()'
...
Linus Torvalds [Wed, 28 Apr 2021 21:39:37 +0000 (14:39 -0700)]
Merge tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
- MD changes via Song:
- raid5 POWER fix
- raid1 failure fix
- UAF fix for md cluster
- mddev_find_or_alloc() clean up
- Fix NULL pointer deref with external bitmap
- Performance improvement for raid10 discard requests
- Fix missing information of /proc/mdstat
- rsxx const qualifier removal (Arnd)
- Expose allocated brd pages (Calvin)
- rnbd via Gioh Kim:
- Change maintainer
- Change domain address of maintainers' email
- Add polling IO mode and document update
- Fix memory leak and some bug detected by static code analysis
tools
- Code refactoring
- Series of floppy cleanups/fixes (Denis)
- s390 dasd fixes (Julian)
- kerneldoc fixes (Lee)
- null_blk double free (Lv)
- null_blk virtual boundary addition (Max)
- Remove xsysace driver (Michal)
- umem driver removal (Davidlohr)
- ataflop fixes (Dan)
- Revalidate disk removal (Christoph)
- Bounce buffer cleanups (Christoph)
- Mark lightnvm as deprecated (Christoph)
- mtip32xx init cleanups (Shixin)
- Various fixes (Tian, Gustavo, Coly, Yang, Zhang, Zhiqiang)
* tag 'for-5.13/drivers-2021-04-27' of git://git.kernel.dk/linux-block: (143 commits)
async_xor: increase src_offs when dropping destination page
drivers/block/null_blk/main: Fix a double free in null_init.
md/raid1: properly indicate failure when ending a failed write request
md-cluster: fix use-after-free issue when removing rdev
nvme: introduce generic per-namespace chardev
nvme: cleanup nvme_configure_apst
nvme: do not try to reconfigure APST when the controller is not live
nvme: add 'kato' sysfs attribute
nvme: sanitize KATO setting
nvmet: avoid queuing keep-alive timer if it is disabled
brd: expose number of allocated pages in debugfs
ataflop: fix off by one in ataflop_probe()
ataflop: potential out of bounds in do_format()
drbd: Fix fall-through warnings for Clang
block/rnbd: Use strscpy instead of strlcpy
block/rnbd-clt-sysfs: Remove copy buffer overlap in rnbd_clt_get_path_name
block/rnbd-clt: Remove max_segment_size
block/rnbd-clt: Generate kobject_uevent when the rnbd device state changes
block/rnbd-srv: Remove unused arguments of rnbd_srv_rdma_ev
Documentation/ABI/rnbd-clt: Add description for nr_poll_queues
...
Linus Torvalds [Wed, 28 Apr 2021 21:27:12 +0000 (14:27 -0700)]
Merge tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Pretty quiet round this time, which is nice. In detail:
- Series revamping bounce buffer support (Christoph)
- Dead code removal (Christoph, Bart)
- Partition iteration revamp, now using xarray (Christoph)
- Passthrough request scheduler improvements (Lin)
- Series of BFQ improvements (Paolo)
- Fix ioprio task iteration (Peter)
- Various little tweaks and fixes (Tejun, Saravanan, Bhaskar, Max,
Nikolay)"
* tag 'for-5.13/block-2021-04-27' of git://git.kernel.dk/linux-block: (41 commits)
blk-iocost: don't ignore vrate_min on QD contention
blk-mq: Fix spurious debugfs directory creation during initialization
bfq/mq-deadline: remove redundant check for passthrough request
blk-mq: bypass IO scheduler's limit_depth for passthrough request
block: Remove an obsolete comment from sg_io()
block: move bio_list_copy_data to pktcdvd
block: remove zero_fill_bio_iter
block: add queue_to_disk() to get gendisk from request_queue
block: remove an incorrect check from blk_rq_append_bio
block: initialize ret in bdev_disk_changed
block: Fix sys_ioprio_set(.which=IOPRIO_WHO_PGRP) task iteration
block: remove disk_part_iter
block: simplify diskstats_show
block: simplify show_partition
block: simplify printk_all_partitions
block: simplify partition_overlaps
block: simplify partition removal
block: take bd_mutex around delete_partitions in del_gendisk
block: refactor blk_drop_partitions
block: move more syncing and invalidation to delete_partition
...
Oleksij Rempel [Wed, 28 Apr 2021 13:09:46 +0000 (15:09 +0200)]
net: selftest: fix build issue if INET is disabled
In case ethernet driver is enabled and INET is disabled, selftest will
fail to build.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 3e1e58d64c3d ("net: add generic selftest support")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210428130947.29649-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jiapeng Chong [Wed, 28 Apr 2021 09:58:05 +0000 (17:58 +0800)]
net: netrom: nr_in: Remove redundant assignment to ns
Variable ns is set to 'skb->data[17]' but this value is never read as
it is overwritten or not used later on, hence it is a redundant
assignment and can be removed.
Cleans up the following clang-analyzer warning:
net/netrom/nr_in.c:156:2: warning: Value stored to 'ns' is never read
[clang-analyzer-deadcode.DeadStores].
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619603885-115604-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Yang Li [Wed, 28 Apr 2021 09:57:32 +0000 (17:57 +0800)]
net: tun: Remove redundant assignment to ret
Variable 'ret' is set to zero but this value is never read as it is
overwritten with a new value later on, hence it is a redundant
assignment and can be removed.
Cleans up the following clang-analyzer warning:
drivers/net/tun.c:3008:2: warning: Value stored to 'ret' is never read
[clang-analyzer-deadcode.DeadStores]
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1619603852-114996-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Maxim Kochetkov [Wed, 28 Apr 2021 09:53:56 +0000 (12:53 +0300)]
net: phy: marvell: add downshift support for M88E1240
Add downshift support for
88E1240, it uses the same downshift
configuration registers as
88E1011.
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Link: https://lore.kernel.org/r/20210428095356.621536-1-fido_max@inbox.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Colin Ian King [Wed, 28 Apr 2021 12:00:10 +0000 (13:00 +0100)]
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
Currently the for-loop in ksz8_port_init_cnt is causing a static
analysis infinite loop warning with the comparison of
mib->cnt_ptr < dev->reg_mib_cnt. This occurs because mib->cnt_ptr
is a u8 and dev->reg_mib_cnt is an int and the analyzer determines
that mib->cnt_ptr potentially can wrap around to zero if the value
in dev->reg_mib_cnt is > 255. However, this value is never this
large, it is always less than 256 so make reg_mib_cnt a u8.
Addresses-Coverity: ("Infinite loop")
Fixes: e66f840c08a2 ("net: dsa: ksz: Add Microchip KSZ8795 DSA driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210428120010.337959-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Roi Dayan [Wed, 28 Apr 2021 06:05:32 +0000 (09:05 +0300)]
net/sched: act_ct: Remove redundant ct get and check
The assignment is not being used and redundant.
The check for null is redundant as nf_conntrack_put() also
checks this.
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/20210428060532.3330974-1-roid@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Andreas Roeseler [Tue, 27 Apr 2021 15:36:35 +0000 (10:36 -0500)]
icmp: standardize naming of RFC 8335 PROBE constants
The current definitions of constants for PROBE, currently defined only
in the net-next kernel branch, are inconsistent, with
some beginning with ICMP and others with simply EXT. This patch
attempts to standardize the naming conventions of the constants for
PROBE before their release into a stable Kernel, and to update the
relevant definitions in net/ipv4/icmp.c.
Similarly, the definitions for the code field (previously
ICMP_EXT_MAL_QUERY, etc) use the same prefixes as the type field. This
patch adds _CODE_ to the prefix to clarify the distinction of these
constants.
Signed-off-by: Andreas Roeseler <andreas.a.roeseler@gmail.com>
Acked-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20210427153635.2591-1-andreas.a.roeseler@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds [Wed, 28 Apr 2021 20:33:57 +0000 (13:33 -0700)]
Merge tag 'sched-core-2021-04-28' of git://git./linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and
debugfs interfaces to a unified debugfs interface.
- Signals: Allow caching one sigqueue object per task, to improve
performance & latencies.
- Improve newidle_balance() irq-off latencies on systems with a large
number of CPU cgroups.
- Improve energy-aware scheduling
- Improve the PELT metrics for certain workloads
- Reintroduce select_idle_smt() to improve load-balancing locality -
but without the previous regressions
- Add 'scheduler latency debugging': warn after long periods of pending
need_resched. This is an opt-in feature that requires the enabling of
the LATENCY_WARN scheduler feature, or the use of the
resched_latency_warn_ms=xx boot parameter.
- CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix
remaining balance_push() vs. hotplug holes/races
- PSI fixes, plus allow /proc/pressure/ files to be written by
CAP_SYS_RESOURCE tasks as well
- Fix/improve various load-balancing corner cases vs. capacity margins
- Fix sched topology on systems with NUMA diameter of 3 or above
- Fix PF_KTHREAD vs to_kthread() race
- Minor rseq optimizations
- Misc cleanups, optimizations, fixes and smaller updates
* tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
cpumask/hotplug: Fix cpu_dying() state tracking
kthread: Fix PF_KTHREAD vs to_kthread() race
sched/debug: Fix cgroup_path[] serialization
sched,psi: Handle potential task count underflow bugs more gracefully
sched: Warn on long periods of pending need_resched
sched/fair: Move update_nohz_stats() to the CONFIG_NO_HZ_COMMON block to simplify the code & fix an unused function warning
sched/debug: Rename the sched_debug parameter to sched_verbose
sched,fair: Alternative sched_slice()
sched: Move /proc/sched_debug to debugfs
sched,debug: Convert sysctl sched_domains to debugfs
debugfs: Implement debugfs_create_str()
sched,preempt: Move preempt_dynamic to debug.c
sched: Move SCHED_DEBUG sysctl to debugfs
sched: Don't make LATENCYTOP select SCHED_DEBUG
sched: Remove sched_schedstats sysctl out from under SCHED_DEBUG
sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG
sched: Use cpu_dying() to fix balance_push vs hotplug-rollback
cpumask: Introduce DYING mask
cpumask: Make cpu_{online,possible,present,active}() inline
rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()
...
Linus Torvalds [Wed, 28 Apr 2021 20:03:44 +0000 (13:03 -0700)]
Merge tag 'perf-core-2021-04-28' of git://git./linux/kernel/git/tip/tip
Pull perf event updates from Ingo Molnar:
- Improve Intel uncore PMU support:
- Parse uncore 'discovery tables' - a new hardware capability
enumeration method introduced on the latest Intel platforms. This
table is in a well-defined PCI namespace location and is read via
MMIO. It is organized in an rbtree.
These uncore tables will allow the discovery of standard counter
blocks, but fancier counters still need to be enumerated
explicitly.
- Add Alder Lake support
- Improve IIO stacks to PMON mapping support on Skylake servers
- Add Intel Alder Lake PMU support - which requires the introduction of
'hybrid' CPUs and PMUs. Alder Lake is a mix of Golden Cove ('big')
and Gracemont ('small' - Atom derived) cores.
The CPU-side feature set is entirely symmetrical - but on the PMU
side there's core type dependent PMU functionality.
- Reduce data loss with CPU level hardware tracing on Intel PT / AUX
profiling, by fixing the AUX allocation watermark logic.
- Improve ring buffer allocation on NUMA systems
- Put 'struct perf_event' into their separate kmem_cache pool
- Add support for synchronous signals for select perf events. The
immediate motivation is to support low-overhead sampling-based race
detection for user-space code. The feature consists of the following
main changes:
- Add thread-only event inheritance via
perf_event_attr::inherit_thread, which limits inheritance of
events to CLONE_THREAD.
- Add the ability for events to not leak through exec(), via
perf_event_attr::remove_on_exec.
- Allow the generation of SIGTRAP via perf_event_attr::sigtrap,
extend siginfo with an u64 ::si_perf, and add the breakpoint
information to ::si_addr and ::si_perf if the event is
PERF_TYPE_BREAKPOINT.
The siginfo support is adequate for breakpoints right now - but the
new field can be used to introduce support for other types of
metadata passed over siginfo as well.
- Misc fixes, cleanups and smaller updates.
* tag 'perf-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
signal, perf: Add missing TRAP_PERF case in siginfo_layout()
signal, perf: Fix siginfo_t by avoiding u64 on 32-bit architectures
perf/x86: Allow for 8<num_fixed_counters<16
perf/x86/rapl: Add support for Intel Alder Lake
perf/x86/cstate: Add Alder Lake CPU support
perf/x86/msr: Add Alder Lake CPU support
perf/x86/intel/uncore: Add Alder Lake support
perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE
perf/x86/intel: Add Alder Lake Hybrid support
perf/x86: Support filter_match callback
perf/x86/intel: Add attr_update for Hybrid PMUs
perf/x86: Add structures for the attributes of Hybrid PMUs
perf/x86: Register hybrid PMUs
perf/x86: Factor out x86_pmu_show_pmu_cap
perf/x86: Remove temporary pmu assignment in event_init
perf/x86/intel: Factor out intel_pmu_check_extra_regs
perf/x86/intel: Factor out intel_pmu_check_event_constraints
perf/x86/intel: Factor out intel_pmu_check_num_counters
perf/x86: Hybrid PMU support for extra_regs
perf/x86: Hybrid PMU support for event constraints
...
Linus Torvalds [Wed, 28 Apr 2021 19:53:24 +0000 (12:53 -0700)]
Merge tag 'objtool-core-2021-04-28' of git://git./linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Standardize the crypto asm code so that it looks like compiler-
generated code to objtool - so that it can understand it. This
enables unwinding from crypto asm code - and also fixes the last
known remaining objtool warnings for LTO and more.
- x86 decoder fixes: clean up and fix the decoder, and also extend it a
bit
- Misc fixes and cleanups
* tag 'objtool-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/crypto: Enable objtool in crypto code
x86/crypto/sha512-ssse3: Standardize stack alignment prologue
x86/crypto/sha512-avx2: Standardize stack alignment prologue
x86/crypto/sha512-avx: Standardize stack alignment prologue
x86/crypto/sha256-avx2: Standardize stack alignment prologue
x86/crypto/sha1_avx2: Standardize stack alignment prologue
x86/crypto/sha_ni: Standardize stack alignment prologue
x86/crypto/crc32c-pcl-intel: Standardize jump table
x86/crypto/camellia-aesni-avx2: Unconditionally allocate stack buffer
x86/crypto/aesni-intel_avx: Standardize stack alignment prologue
x86/crypto/aesni-intel_avx: Fix register usage comments
x86/crypto/aesni-intel_avx: Remove unused macros
objtool: Support asm jump tables
objtool: Parse options from OBJTOOL_ARGS
objtool: Collate parse_options() users
objtool: Add --backup
objtool,x86: More ModRM sugar
objtool,x86: Rewrite ADD/SUB/AND
objtool,x86: Support %riz encodings
objtool,x86: Simplify register decode
...
Linus Torvalds [Wed, 28 Apr 2021 19:37:53 +0000 (12:37 -0700)]
Merge tag 'locking-core-2021-04-28' of git://git./linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- rtmutex cleanup & spring cleaning pass that removes ~400 lines of
code
- Futex simplifications & cleanups
- Add debugging to the CSD code, to help track down a tenacious race
(or hw problem)
- Add lockdep_assert_not_held(), to allow code to require a lock to not
be held, and propagate this into the ath10k driver
- Misc LKMM documentation updates
- Misc KCSAN updates: cleanups & documentation updates
- Misc fixes and cleanups
- Fix locktorture bugs with ww_mutexes
* tag 'locking-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
kcsan: Fix printk format string
static_call: Relax static_call_update() function argument type
static_call: Fix unused variable warn w/o MODULE
locking/rtmutex: Clean up signal handling in __rt_mutex_slowlock()
locking/rtmutex: Restrict the trylock WARN_ON() to debug
locking/rtmutex: Fix misleading comment in rt_mutex_postunlock()
locking/rtmutex: Consolidate the fast/slowpath invocation
locking/rtmutex: Make text section and inlining consistent
locking/rtmutex: Move debug functions as inlines into common header
locking/rtmutex: Decrapify __rt_mutex_init()
locking/rtmutex: Remove pointless CONFIG_RT_MUTEXES=n stubs
locking/rtmutex: Inline chainwalk depth check
locking/rtmutex: Move rt_mutex_debug_task_free() to rtmutex.c
locking/rtmutex: Remove empty and unused debug stubs
locking/rtmutex: Consolidate rt_mutex_init()
locking/rtmutex: Remove output from deadlock detector
locking/rtmutex: Remove rtmutex deadlock tester leftovers
locking/rtmutex: Remove rt_mutex_timed_lock()
MAINTAINERS: Add myself as futex reviewer
locking/mutex: Remove repeated declaration
...
Linus Torvalds [Wed, 28 Apr 2021 19:00:13 +0000 (12:00 -0700)]
Merge tag 'core-rcu-2021-04-28' of git://git./linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
- Support for "N" as alias for last bit in bitmap parsing library (eg
using syntax like "nohz_full=2-N")
- kvfree_rcu updates
- mm_dump_obj() updates. (One of these is to mm, but was suggested by
Andrew Morton.)
- RCU callback offloading update
- Polling RCU grace-period interfaces
- Realtime-related RCU updates
- Tasks-RCU updates
- Torture-test updates
- Torture-test scripting updates
- Miscellaneous fixes
* tag 'core-rcu-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (77 commits)
rcutorture: Test start_poll_synchronize_rcu() and poll_state_synchronize_rcu()
rcu: Provide polling interfaces for Tiny RCU grace periods
torture: Fix kvm.sh --datestamp regex check
torture: Consolidate qemu-cmd duration editing into kvm-transform.sh
torture: Print proper vmlinux path for kvm-again.sh runs
torture: Make TORTURE_TRUST_MAKE available in kvm-again.sh environment
torture: Make kvm-transform.sh update jitter commands
torture: Add --duration argument to kvm-again.sh
torture: Add kvm-again.sh to rerun a previous torture-test
torture: Create a "batches" file for build reuse
torture: De-capitalize TORTURE_SUITE
torture: Make upper-case-only no-dot no-slash scenario names official
torture: Rename SRCU-t and SRCU-u to avoid lowercase characters
torture: Remove no-mpstat error message
torture: Record kvm-test-1-run.sh and kvm-test-1-run-qemu.sh PIDs
torture: Record jitter start/stop commands
torture: Extract kvm-test-1-run-qemu.sh from kvm-test-1-run.sh
torture: Record TORTURE_KCONFIG_GDB_ARG in qemu-cmd
torture: Abstract jitter.sh start/stop into scripts
rcu: Provide polling interfaces for Tree RCU grace periods
...
Jakub Kicinski [Wed, 28 Apr 2021 18:59:31 +0000 (11:59 -0700)]
Merge https://git./linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2021-04-28
The main changes are:
1) Add link detach and following re-attach for trampolines, from Jiri Olsa.
2) Use kernel's "binary printf" lib for formatted output BPF helpers (which
avoids the needs for variadic argument handling), from Florent Revest.
3) Fix verifier 64 to 32 bit min/max bound propagation, from Daniel Borkmann.
4) Convert cpumap to use netif_receive_skb_list(), from Lorenzo Bianconi.
5) Add generic batched-ops support to percpu array map, from Pedro Tammela.
6) Various CO-RE relocation BPF selftests fixes, from Andrii Nakryiko.
7) Misc doc rst fixes, from Hengqi Chen.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next:
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
bpf, docs: Fix literal block for example code
bpf, cpumap: Bulk skb using netif_receive_skb_list
bpf: Fix propagation of 32 bit unsigned bounds from 64 bit bounds
bpf: Lock bpf_trace_printk's tmp buf before it is written to
selftests/bpf: Fix core_reloc test runner
selftests/bpf: Fix field existence CO-RE reloc tests
selftests/bpf: Fix BPF_CORE_READ_BITFIELD() macro
libbpf: Support BTF_KIND_FLOAT during type compatibility checks in CO-RE
selftests/bpf: Add remaining ASSERT_xxx() variants
selftests/bpf: Use ASSERT macros in lsm test
selftests/bpf: Test that module can't be unloaded with attached trampoline
selftests/bpf: Add re-attach test to lsm test
selftests/bpf: Add re-attach test to fexit_test
selftests/bpf: Add re-attach test to fentry_test
bpf: Allow trampoline re-attach for tracing and lsm programs
====================
Link: https://lore.kernel.org/r/20210427233740.22238-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds [Wed, 28 Apr 2021 17:01:40 +0000 (10:01 -0700)]
Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"The usual lots of work all over the place.
i915 has gotten some Alderlake work and prelim DG1 code, along with a
major locking rework over the GEM code, and brings back the property
of timing out long running jobs using a watchdog. amdgpu has some
Alderbran support (new GPU), freesync HDMI support along with a lot
other fixes.
Outside of the drm, there is a new printf specifier added which should
have all the correct acks/sobs:
- printk fourcc modifier support added %p4cc
Summary:
core:
- drm_crtc_commit_wait
- atomic plane state helpers reworked for full state
- dma-buf heaps API rework
- edid: rework and improvements for displayid
dp-mst:
- better topology logging
bridge:
- Chipone ICN6211
- Lontium LT8912B
- anx7625 regulator support
panel:
- fix lt9611 4k panels handling
simple-kms:
- add plane state helpers
ttm:
- debugfs support
- removal of unused sysfs
- ignore signaled moved fences
- ioremap buffer according to mem caching
i915:
- Alderlake S enablement
- Conversion to dma_resv_locking
- Bring back watchdog timeout support
- legacy ioctl cleanups
- add GEM TDDO and RFC process
- DG1 LMEM preparation work
- intel_display.c refactoring
- Gen9/TGL PCH combination support
- eDP MSO Support
- multiple PSR instance support
- Link training debug updates
- Disable PSR2 support on JSL/EHL
- DDR5/LPDDR5 support for bw calcs
- LSPCON limited to gen9/10 platforms
- HSW/BDW async flip/VTd corruption workaround
- SAGV watermark fixes
- SNB hard hang on ring resume fix
- Limit imported dma-buf size
- move to use new tasklet API
- refactor KBL/TGL/ADL-S display/gt steppings
- refactoring legacy DP/HDMI, FB plane code out
amdgpu:
- uapi: add ioctl to query video capabilities
- Iniital AMD Freesync HDMI support
- Initial Adebaran support
- 10bpc dithering improvements
- DCN secure display support
- Drop legacy IO BAR requirements
- PCIE/S0ix/RAS/Prime/Reset fixes
- Display ASSR support
- SMU gfx busy queues for RV/PCO
- Initial LTTPR display work
amdkfd:
- MMU notifier fixes
- APU fixes
radeon:
- debugfs cleanps
- fw error handling ifix
- Flexible array cleanups
msm:
- big DSI phy/pll cleanup
- sc7280 initial support
- commong bandwidth scaling path
- shrinker locking contention fixes
- unpin/swap support for GEM objcets
ast:
- cursor plane handling reworked
tegra:
- don't register DP AUX channels before connectors
zynqmp:
- fix OOB struct padding memset
gma500:
- drop ttm and medfield support
exynos:
- request_irq cleanup function
mediatek:
- fine tune line time for EOTp
- MT8192 dpi support
- atomic crtc config updates
- don't support HDMI connector creation
mxsdb:
- imx8mm support
panfrost:
- MMU IRQ handling rework
qxl:
- locking fixes
- resource deallocation changes
sun4i:
- add alpha properties to UI/VI layers
vc4:
- RPi4 CEC support
vmwgfx:
- doc cleanups
arc:
- moved to drm/tiny"
* tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm: (1390 commits)
drm/ttm: Don't count pages in SG BOs against pages_limit
drm/ttm: fix return value check
drm/bridge: lt8912b: fix incorrect handling of of_* return values
drm: bridge: fix LONTIUM use of mipi_dsi_() functions
drm: bridge: fix ANX7625 use of mipi_dsi_() functions
drm/amdgpu: page retire over debugfs mechanism
drm/radeon: Fix a missing check bug in radeon_dp_mst_detect()
drm/amd/display: Fix the Wunused-function warning
drm/radeon/r600: Fix variables that are not used after assignment
drm/amdgpu/smu7: fix CAC setting on TOPAZ
drm/amd/display: Update DCN302 SR Exit Latency
drm/amdgpu: enable ras eeprom on aldebaran
drm/amdgpu: RAS harvest on driver load
drm/amdgpu: add ras aldebaran ras eeprom driver
drm/amd/pm: increase time out value when sending msg to SMU
drm/amdgpu: add DMUB outbox event IRQ source define/complete/debug flag
drm/amd/pm: add the callback to get vbios bootup values for vangogh
drm/radeon: Fix size overflow
drm/amdgpu: Fix size overflow
drm/amdgpu: move mmhub ras_func init to ip specific file
...
Linus Torvalds [Wed, 28 Apr 2021 16:24:36 +0000 (09:24 -0700)]
Merge tag 'media/v5.13-1' of git://git./linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- addition of a maintainer's profile for the media subsystem
- addition of i.MX8 IP support
- qcom/camss gained support for hardware version Titan 170
- new RC keymaps
- Lots of other improvements, cleanups and bug fixes
* tag 'media/v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (488 commits)
media: coda: fix macroblocks count control usage
media: rkisp1: params: fix wrong bits settings
media: cedrus: Fix H265 status definitions
media: meson-ge2d: fix rotation parameters
media: v4l2-ctrls: fix reference to freed memory
media: venus : hfi: add venus image info into smem
media: venus: Fix internal buffer size calculations for v6.
media: venus: helpers: keep max bandwidth when mbps exceeds the supported range
media: venus: fix hw overload error log condition
media: venus: core: correct firmware name for sm8250
media: venus: core,pm: fix potential infinite loop
media: venus: core: Fix kerneldoc warnings
media: gscpa/stv06xx: fix memory leak
media: cx25821: remove unused including <linux/version.h>
media: staging: media/meson: remove redundant dev_err call
media: adv7842: support 1 block EDIDs, fix clearing EDID
media: adv7842: configure all pads
media: allegro: change kernel-doc comment blocks to normal comments
media: camss: ispif: Remove redundant dev_err call in msm_ispif_subdev_init()
media: i2c: rdamc21: Fix warning on u8 cast
...
Linus Torvalds [Wed, 28 Apr 2021 02:32:55 +0000 (19:32 -0700)]
Merge tag 'fixes-v5.13' of git://git./linux/kernel/git/jmorris/linux-security
Pull security layer fixes from James Morris:
"Miscellaneous minor fixes"
* tag 'fixes-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
security: commoncap: clean up kernel-doc comments
security: commoncap: fix -Wstringop-overread warning
Linus Torvalds [Wed, 28 Apr 2021 01:56:29 +0000 (18:56 -0700)]
Merge tag 'linux-kselftest-kunit-5.13-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several fixes and a new feature to support failure from dynamic
analysis tools such as UBSAN and fake ops for testing.
- a fake ops struct for testing a "free" function to complain if it
was called with an invalid argument, or caught a double-free. Most
return void and have no normal means of signalling failure (e.g.
super_operations, iommu_ops, etc.)"
* tag 'linux-kselftest-kunit-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: kunit: add tips for using current->kunit_test
kunit: fix -Wunused-function warning for __kunit_fail_current_test
kunit: support failure from dynamic analysis tools
kunit: tool: make --kunitconfig accept dirs, add lib/kunit fragment
kunit: make KUNIT_EXPECT_STREQ() quote values, don't print literals
kunit: Match parenthesis alignment to improve code readability
Linus Torvalds [Wed, 28 Apr 2021 01:54:01 +0000 (18:54 -0700)]
Merge tag 'linux-kselftest-next-5.13-rc1' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
- fixes and updates to resctrl test from Fenghua Yu and Reinette Chatre
- fixes to Kselftest documentation, framework
- minor spelling correction in timers test
* tag 'linux-kselftest-next-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (25 commits)
selftests/resctrl: Change a few printed messages
Documentation: kselftest: fix path to test module files
selftests/resctrl: Create .gitignore to include resctrl_tests
selftests/resctrl: Fix checking for < 0 for unsigned values
selftests/resctrl: Fix incorrect parsing of iMC counters
selftests/resctrl: Fix unmount resctrl FS
selftests/resctrl: Skip the test if requested resctrl feature is not supported
selftests/resctrl: Modularize resctrl test suite main() function
selftests/resctrl: Don't hard code value of "no_of_bits" variable
selftests/resctrl: Fix MBA/MBM results reporting format
selftests/resctrl: Use resctrl/info for feature detection
selftests/resctrl: Check for resctrl mount point only if resctrl FS is supported
selftests/resctrl: Add config dependencies
selftests/resctrl: Fix a printed message
selftests/resctrl: Share show_cache_info() by CAT and CMT tests
selftests/resctrl: Call kselftest APIs to log test results
selftests/resctrl: Rename CQM test as CMT test
selftests/resctrl: Fix missing options "-n" and "-p"
selftests/resctrl: Ensure sibling CPU is not same as original CPU
selftests/resctrl: Clean up resctrl features check
...
Linus Torvalds [Wed, 28 Apr 2021 01:47:42 +0000 (18:47 -0700)]
Merge branch 'for-5.13' of git://git./linux/kernel/git/tj/cgroup
Pull cgroup changes from Tejun Heo:
"The only notable change is Vipin's new misc cgroup controller.
This implements generic support for resources which can be controlled
by simply counting and limiting the number of resource instances - ie
there's X number of these on the system and this cgroup subtree can
have upto Y of those.
The first user is the address space IDs used for virtual machine
memory encryption and expected future usages are similar - niche
hardware features with concrete resource limits and simple usage
models"
* 'for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: use tsk->in_iowait instead of delayacct_is_task_waiting_on_io()
cgroup/cpuset: fix typos in comments
cgroup: misc: mark dummy misc_cg_res_total_usage() static inline
svm/sev: Register SEV and SEV-ES ASIDs to the misc controller
cgroup: Miscellaneous cgroup documentation.
cgroup: Add misc cgroup controller
Linus Torvalds [Wed, 28 Apr 2021 01:14:38 +0000 (18:14 -0700)]
Merge tag 'livepatching-for-5.13' of git://git./linux/kernel/git/livepatching/livepatching
Pull livepatching update from Petr Mladek:
- Use TIF_NOTIFY_SIGNAL infrastructure instead of the fake signal
* tag 'livepatching-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
livepatch: Replace the fake signal sending with TIF_NOTIFY_SIGNAL infrastructure
Linus Torvalds [Wed, 28 Apr 2021 01:09:44 +0000 (18:09 -0700)]
Merge tag 'printk-for-5.13' of git://git./linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Stop synchronizing kernel log buffer readers by logbuf_lock. As a
result, the access to the buffer is fully lockless now.
Note that printk() itself still uses locks because it tries to flush
the messages to the console immediately. Also the per-CPU temporary
buffers are still there because they prevent infinite recursion and
serialize backtraces from NMI. All this is going to change in the
future.
- kmsg_dump API rework and cleanup as a side effect of the logbuf_lock
removal.
- Make bstr_printf() aware that %pf and %pF formats could deference the
given pointer.
- Show also page flags by %pGp format.
- Clarify the documentation for plain pointer printing.
- Do not show no_hash_pointers warning multiple times.
- Update Senozhatsky email address.
- Some clean up.
* tag 'printk-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (24 commits)
lib/vsprintf.c: remove leftover 'f' and 'F' cases from bstr_printf()
printk: clarify the documentation for plain pointer printing
kernel/printk.c: Fixed mundane typos
printk: rename vprintk_func to vprintk
vsprintf: dump full information of page flags in pGp
mm, slub: don't combine pr_err with INFO
mm, slub: use pGp to print page flags
MAINTAINERS: update Senozhatsky email address
lib/vsprintf: do not show no_hash_pointers message multiple times
printk: console: remove unnecessary safe buffer usage
printk: kmsg_dump: remove _nolock() variants
printk: remove logbuf_lock
printk: introduce a kmsg_dump iterator
printk: kmsg_dumper: remove @active field
printk: add syslog_lock
printk: use atomic64_t for devkmsg_user.seq
printk: use seqcount_latch for clear_seq
printk: introduce CONSOLE_LOG_MAX
printk: consolidate kmsg_dump_get_buffer/syslog_print_all code
printk: refactor kmsg_dump_get_buffer()
...
Linus Torvalds [Wed, 28 Apr 2021 01:07:19 +0000 (18:07 -0700)]
Merge tag 'kgdb-5.13-rc1' of git://git./linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"Exclusively tidy ups this cycle. Most of them are thanks to Sumit Garg
and, as it happens, the clean ups do result in a slight increase in
the line count. This is due to registering kdb commands using data
structures rather than function calls which, in turn, simplifies the
memory management during command registration.
In addition to changes to command registration we also have some dead
code removal, a clearer implementation of environment variable
handling and a typo fix"
* tag 'kgdb-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kdb: Refactor env variables get/set code
kernel: debug: Ordinary typo fixes in the file gdbstub.c
kdb: Simplify kdb commands registration
kdb: Remove redundant function definitions/prototypes
Linus Torvalds [Wed, 28 Apr 2021 00:54:15 +0000 (17:54 -0700)]
Merge tag 's390-5.13-1' of git://git./linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- fix buffer size for in-kernel disassembler for ebpf programs.
- fix two memory leaks in zcrypt driver.
- expose PCI device UID as index, including an indicator if the uid is
unique.
- remove some oprofile leftovers.
- improve stack unwinder tests.
- don't use gcc atomic builtins anymore, just like all other
architectures. Even though I'm sure the current code is ok, I totally
dislike that s390 is the only architecture being special here;
especially considering that there was a lengthly discussion about
this topic and the outcome was not to use the builtins. Therefore
open-code atomic ops again with inline assembly and switch to gcc
builtins as soon as other architectures are doing.
- couple of other changes to atomic and cmpxchg, and use
atomic-instrumented.h for KASAN.
- separate zbus creation, registration, and scanning in our PCI code
which allows for cleaner and easier handling.
- a rather large change to the vfio-ap code to fix circular locking
dependencies when updating crypto masks.
- move QAOB handling from qdio layer down to drivers.
- add CRW inject facility to common I/O layer. This adds debugs files
which allow to generate artificial events from user space for testing
purposes.
- increase SCLP console line length from 80 to 320 characters to avoid
odd wrapped lines.
- add protected virtualization guest and host indication files, which
indicate either that a guest is running in pv mode or if the
hypervisor is capable of starting pv guests.
- various other small fixes and improvements all over the place.
* tag 's390-5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (53 commits)
s390/disassembler: increase ebpf disasm buffer size
s390/archrandom: add parameter check for s390_arch_random_generate
s390/zcrypt: fix zcard and zqueue hot-unplug memleak
s390/pci: expose a PCI device's UID as its index
s390/atomic,cmpxchg: always inline __xchg/__cmpxchg
s390/smp: fix do_restart() prototype
s390: get rid of oprofile leftovers
s390/atomic,cmpxchg: make constraints work with old compilers
s390/test_unwind: print test suite start/end info
s390/cmpxchg: use unsigned long values instead of void pointers
s390/test_unwind: add WARN if tests failed
s390/test_unwind: unify error handling paths
s390: update defconfigs
s390/spinlock: use R constraint in inline assembly
s390/atomic,cmpxchg: switch to use atomic-instrumented.h
s390/cmpxchg: get rid of gcc atomic builtins
s390/atomic: get rid of gcc atomic builtins
s390/atomic: use proper constraints
s390/atomic: move remaining inline assemblies to atomic_ops.h
s390/bitops: make bitops only work on longs
...
Linus Torvalds [Wed, 28 Apr 2021 00:45:09 +0000 (17:45 -0700)]
Merge tag 'x86_core_for_v5.13' of git://git./linux/kernel/git/tip/tip
Pull x86 updates from Borislav Petkov:
- Turn the stack canary into a normal __percpu variable on 32-bit which
gets rid of the LAZY_GS stuff and a lot of code.
- Add an insn_decode() API which all users of the instruction decoder
should preferrably use. Its goal is to keep the details of the
instruction decoder away from its users and simplify and streamline
how one decodes insns in the kernel. Convert its users to it.
- kprobes improvements and fixes
- Set the maximum DIE per package variable on Hygon
- Rip out the dynamic NOP selection and simplify all the machinery
around selecting NOPs. Use the simplified NOPs in objtool now too.
- Add Xeon Sapphire Rapids to list of CPUs that support PPIN
- Simplify the retpolines by folding the entire thing into an
alternative now that objtool can handle alternatives with stack ops.
Then, have objtool rewrite the call to the retpoline with the
alternative which then will get patched at boot time.
- Document Intel uarch per models in intel-family.h
- Make Sub-NUMA Clustering topology the default and Cluster-on-Die the
exception on Intel.
* tag 'x86_core_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
x86, sched: Treat Intel SNC topology as default, COD as exception
x86/cpu: Comment Skylake server stepping too
x86/cpu: Resort and comment Intel models
objtool/x86: Rewrite retpoline thunk calls
objtool: Skip magical retpoline .altinstr_replacement
objtool: Cache instruction relocs
objtool: Keep track of retpoline call sites
objtool: Add elf_create_undef_symbol()
objtool: Extract elf_symbol_add()
objtool: Extract elf_strtab_concat()
objtool: Create reloc sections implicitly
objtool: Add elf_create_reloc() helper
objtool: Rework the elf_rebuild_reloc_section() logic
objtool: Fix static_call list generation
objtool: Handle per arch retpoline naming
objtool: Correctly handle retpoline thunk calls
x86/retpoline: Simplify retpolines
x86/alternatives: Optimize optimize_nops()
x86: Add insn_decode_kernel()
x86/kprobes: Move 'inline' to the beginning of the kprobe_is_ss() declaration
...
Linus Torvalds [Wed, 28 Apr 2021 00:05:53 +0000 (17:05 -0700)]
Fix misc new gcc warnings
It seems like Fedora 34 ends up enabling a few new gcc warnings, notably
"-Wstringop-overread" and "-Warray-parameter".
Both of them cause what seem to be valid warnings in the kernel, where
we have array size mismatches in function arguments (that are no longer
just silently converted to a pointer to element, but actually checked).
This fixes most of the trivial ones, by making the function declaration
match the function definition, and in the case of intel_pm.c, removing
the over-specified array size from the argument declaration.
At least one 'stringop-overread' warning remains in the i915 driver, but
that one doesn't have the same obvious trivial fix, and may or may not
actually be indicative of a bug.
[ It was a mistake to upgrade one of my machines to Fedora 34 while
being busy with the merge window, but if this is the extent of the
compiler upgrade problems, things are better than usual - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stephen Boyd [Tue, 27 Apr 2021 23:34:56 +0000 (16:34 -0700)]
Merge branch 'clk-ralink' into clk-next
- Proper clk driver for Mediatek MT7621 SoCs
* clk-ralink:
MAINTAINERS: add MT7621 CLOCK maintainer
staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'
staging: mt7621-dts: make use of new 'mt7621-clk'
clk: ralink: add clock driver for mt7621 SoC
dt: bindings: add mt7621-sysc device tree binding documentation
dt-bindings: clock: add dt binding header for mt7621 clocks
Stephen Boyd [Tue, 27 Apr 2021 23:34:44 +0000 (16:34 -0700)]
Merge branches 'clk-imx', 'clk-samsung', 'clk-zynq', 'clk-rockchip' and 'clk-uniphier' into clk-next
- Simplify Zynq Kconfig dependencies
* clk-imx:
clk: imx: Reference preceded by free
clk: imx8mq: Correct the pcie1 sels
clk: imx8mp: Remove the none exist pcie clocks
clk: imx: Fix reparenting of UARTs not associated with stdout
* clk-samsung:
clk: samsung: Remove redundant dev_err calls
clk: exynos7: Mark aclk_fsys1_200 as critical
* clk-zynq:
clk: zynqmp: pll: add set_pll_mode to check condition in zynqmp_pll_enable
clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback
clk: zynqmp: Drop dependency on ARCH_ZYNQMP
clk: zynqmp: Enable the driver if ZYNQMP_FIRMWARE is selected
* clk-rockchip:
clk: rockchip: drop MODULE_ALIAS from rk3399 clock controller
clk: rockchip: drop parenthesis from ARM || COMPILE_TEST depends
clk: rockchip: add clock controller for rk3568
clk: rockchip: support more core div setting
dt-binding: clock: Document rockchip, rk3568-cru bindings
clk: rockchip: add dt-binding header for rk3568
* clk-uniphier:
clk: uniphier: Fix potential infinite loop
Stephen Boyd [Tue, 27 Apr 2021 23:34:28 +0000 (16:34 -0700)]
Merge branches 'clk-cleanup', 'clk-renesas', 'clk-socfpga', 'clk-allwinner' and 'clk-qcom' into clk-next
- Use clk_hw pointers in socfpga driver
- Cleanup parent data in qcom clk drivers
* clk-cleanup:
clk: Drop double "if" in clk_core_determine_round_nolock() comment
clk: at91: Trivial typo fixes in the file sama7g5.c
clk: use clk_core_enable_lock() a bit more
* clk-renesas:
clk: renesas: Zero init clk_init_data
clk: renesas: Couple of spelling fixes
clk: renesas: r8a779a0: Add CMT clocks
clk: renesas: r8a7795: Add TMU clocks
clk: renesas: r8a779a0: Add TSC clock
clk: renesas: r8a779a0: Add TMU clocks
clk: renesas: r8a77965: Add DAB clock
clk: renesas: r8a77990: Add DAB clock
* clk-socfpga:
clk: socfpga: remove redundant initialization of variable div
clk: socfpga: arria10: Fix memory leak of socfpga_clk on error return
clk: socfpga: Fix code formatting
clk: socfpga: Convert to s10/agilex/n5x to use clk_hw
clk: socfpga: arria10: convert to use clk_hw
clk: socfpga: use clk_hw_register for a5/c5
* clk-allwinner:
clk: sunxi: Demote non-conformant kernel-doc headers
clk: sunxi-ng: v3s: use sigma-delta modulation for audio-pll
* clk-qcom: (45 commits)
clk: qcom: rpmh: add support for SDX55 rpmh IPA clock
clk: qcom: gcc-sdm845: get rid of the test clock
clk: qcom: convert SDM845 Global Clock Controller to parent_data
dt-bindings: clock: separate SDM845 GCC clock bindings
clk: qcom: apss-ipq-pll: Add missing MODULE_DEVICE_TABLE
clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE
clk: qcom: a7-pll: Add missing MODULE_DEVICE_TABLE
clk: qcom: gcc-sm8350: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sm8250: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sm8150: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sc8180x: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sc7180: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: videocc-sm8250: use parent_hws where possible
clk: qcom: videocc-sm8150: use parent_hws where possible
clk: qcom: gpucc-sm8250: use parent_hws where possible
clk: qcom: gpucc-sm8150: use parent_hws where possible
clk: qcom: gcc-sm8350: use parent_hws where possible
clk: qcom: gcc-sm8250: use parent_hws where possible
clk: qcom: gcc-sm8150: use parent_hws where possible
clk: qcom: gcc-sdx55: use parent_hws where possible
...
Pedro Tammela [Sat, 24 Apr 2021 21:45:10 +0000 (18:45 -0300)]
bpf, selftests: Update array map tests for per-cpu batched ops
Follows the same logic as the hashtable tests.
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210424214510.806627-3-pctammela@mojatatu.com
projects / platform / kernel / linux-starfive.git / log