Naoya Horiguchi [Mon, 10 Jul 2017 22:47:53 +0000 (15:47 -0700)]
mm: hugetlb: delete dequeue_hwpoisoned_huge_page()
dequeue_hwpoisoned_huge_page() is no longer used, so let's remove it.
Link: http://lkml.kernel.org/r/1496305019-5493-9-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:50 +0000 (15:47 -0700)]
mm: hwpoison: dissolve in-use hugepage in unrecoverable memory error
Currently me_huge_page() relies on dequeue_hwpoisoned_huge_page() to
keep the error hugepage away from the system, which is OK but not good
enough because the hugepage still has a refcount and unpoison doesn't
work on the error hugepage (PageHWPoison flags are cleared but pages are
still leaked.) And there's "wasting health subpages" issue too. This
patch reworks on me_huge_page() to solve these issues.
For hugetlb file, recently we have truncating code so let's use it in
hugetlbfs specific ->error_remove_page().
For anonymous hugepage, it's helpful to dissolve the error page after
freeing it into free hugepage list. Migration entry and PageHWPoison in
the head page prevent the access to it.
TODO: dissolve_free_huge_page() can fail but we don't considered it yet.
It's not critical (and at least no worse that now) because in such case
the error hugepage just stays in free hugepage list without being
dissolved. By virtue of PageHWPoison in head page, it's never allocated
to processes.
[akpm@linux-foundation.org: fix unused var warnings]
Fixes:
23a003bfd23ea9ea0b7756b920e51f64b284b468 ("mm/madvise: pass return code of memory_failure() to userspace")
Link: http://lkml.kernel.org/r/20170417055948.GM31394@yexl-desktop
Link: http://lkml.kernel.org/r/1496305019-5493-8-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:47 +0000 (15:47 -0700)]
mm: hwpoison: introduce memory_failure_hugetlb()
memory_failure() is a big function and hard to maintain. Handling
hugetlb- and non-hugetlb- case in a single function is not good, so this
patch separates PageHuge() branch into a new function, which saves many
PageHuge() check.
Link: http://lkml.kernel.org/r/1496305019-5493-7-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:44 +0000 (15:47 -0700)]
mm: soft-offline: dissolve free hugepage if soft-offlined
Now we have code to rescue most of healthy pages from a hwpoisoned
hugepage. So let's apply it to soft_offline_free_page too.
Link: http://lkml.kernel.org/r/1496305019-5493-6-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Anshuman Khandual [Mon, 10 Jul 2017 22:47:41 +0000 (15:47 -0700)]
mm: hugetlb: soft-offline: dissolve source hugepage after successful migration
Currently hugepage migrated by soft-offline (i.e. due to correctable
memory errors) is contained as a hugepage, which means many non-error
pages in it are unreusable, i.e. wasted.
This patch solves this issue by dissolving source hugepages into buddy.
As done in previous patch, PageHWPoison is set only on a head page of
the error hugepage. Then in dissoliving we move the PageHWPoison flag
to the raw error page so that all healthy subpages return back to buddy.
[arnd@arndb.de: fix warnings: replace some macros with inline functions]
Link: http://lkml.kernel.org/r/20170609102544.2947326-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/1496305019-5493-5-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:38 +0000 (15:47 -0700)]
mm: hwpoison: change PageHWPoison behavior on hugetlb pages
We'd like to narrow down the error region in memory error on hugetlb
pages. However, currently we set PageHWPoison flags on all subpages in
the error hugepage and add # of subpages to num_hwpoison_pages, which
doesn't fit our purpose.
So this patch changes the behavior and we only set PageHWPoison on the
head page then increase num_hwpoison_pages only by 1. This is a
preparation for narrow-down part which comes in later patches.
Link: http://lkml.kernel.org/r/1496305019-5493-4-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:35 +0000 (15:47 -0700)]
mm: hugetlb: return immediately for hugetlb page in __delete_from_page_cache()
We avoid calling __mod_node_page_state(NR_FILE_PAGES) for hugetlb page
now, but it's not enough because later code doesn't handle hugetlb
properly. Actually in our testing, WARN_ON_ONCE(PageDirty(page)) at the
end of this function fires for hugetlb, which makes no sense. So we
should return immediately for hugetlb pages.
Link: http://lkml.kernel.org/r/1496305019-5493-3-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Naoya Horiguchi [Mon, 10 Jul 2017 22:47:32 +0000 (15:47 -0700)]
mm: hugetlb: prevent reuse of hwpoisoned free hugepages
Patch series "mm: hwpoison: fixlet for hugetlb migration".
This patchset updates the hwpoison/hugetlb code to address 2 reported
issues.
One is madvise(MADV_HWPOISON) failure reported by Intel's lkp robot (see
http://lkml.kernel.org/r/
20170417055948.GM31394@yexl-desktop.) First
half was already fixed in mainline, and another half about hugetlb cases
are solved in this series.
Another issue is "narrow-down error affected region into a single 4kB
page instead of a whole hugetlb page" issue, which was tried by Anshuman
(http://lkml.kernel.org/r/
20170420110627.12307-1-khandual@linux.vnet.ibm.com)
and I updated it to apply it more widely.
This patch (of 9):
We no longer use MIGRATE_ISOLATE to prevent reuse of hwpoison hugepages
as we did before. So current dequeue_huge_page_node() doesn't work as
intended because it still uses is_migrate_isolate_page() for this check.
This patch fixes it with PageHWPoison flag.
Link: http://lkml.kernel.org/r/1496305019-5493-2-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Biggers [Mon, 10 Jul 2017 22:47:29 +0000 (15:47 -0700)]
fs/buffer.c: make bh_lru_install() more efficient
To install a buffer_head into the cpu's LRU queue, bh_lru_install()
would construct a new copy of the queue and then memcpy it over the real
queue. But it's easily possible to do the update in-place, which is
faster and simpler. Some work can also be skipped if the buffer_head
was already in the queue.
As a microbenchmark I timed how long it takes to run sb_getblk()
10,000,000 times alternating between BH_LRU_SIZE + 1 blocks.
Effectively, this benchmarks looking up buffer_heads that are in the
page cache but not in the LRU:
Before this patch: 1.758s
After this patch: 1.653s
This patch also removes about 350 bytes of compiled code (on x86_64),
partly due to removal of the memcpy() which was being inlined+unrolled.
Link: http://lkml.kernel.org/r/20161229193445.1913-1-ebiggers3@gmail.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Desaulniers [Mon, 10 Jul 2017 22:47:26 +0000 (15:47 -0700)]
mm/zsmalloc.c: fix -Wunneeded-internal-declaration warning
is_first_page() is only called from the macro VM_BUG_ON_PAGE() which is
only compiled in as a runtime check when CONFIG_DEBUG_VM is set,
otherwise is checked at compile time and not actually compiled in.
Fixes the following warning, found with Clang:
mm/zsmalloc.c:472:12: warning: function 'is_first_page' is not needed and will not be emitted [-Wunneeded-internal-declaration]
static int is_first_page(struct page *page)
^
Link: http://lkml.kernel.org/r/20170524053859.29059-1-nick.desaulniers@gmail.com
Signed-off-by: Nick Desaulniers <nick.desaulniers@gmail.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gustavo A. R. Silva [Mon, 10 Jul 2017 22:47:23 +0000 (15:47 -0700)]
mm/memory_hotplug.c: add NULL check to avoid potential NULL pointer dereference
The NULL check at line 1226: if (!pgdat), implies that pointer pgdat
might be NULL.
rollback_node_hotadd() dereferences this pointer. Add NULL check to
avoid a potential NULL pointer dereference.
Addresses-Coverity-ID: 1369133
Link: http://lkml.kernel.org/r/20170530212436.GA6195@embeddedgus
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Rientjes [Mon, 10 Jul 2017 22:47:20 +0000 (15:47 -0700)]
mm, vmscan: avoid thrashing anon lru when free + file is low
The purpose of the code that commit
623762517e23 ("revert 'mm: vmscan:
do not swap anon pages just because free+file is low'") reintroduces is
to prefer swapping anonymous memory rather than trashing the file lru.
If the anonymous inactive lru for the set of eligible zones is
considered low, however, or the length of the list for the given reclaim
priority does not allow for effective anonymous-only reclaiming, then
avoid forcing SCAN_ANON. Forcing SCAN_ANON will end up thrashing the
small list and leave unreclaimed memory on the file lrus.
If the inactive list is insufficient, fallback to balanced reclaim so
the file lru doesn't remain untouched.
[akpm@linux-foundation.org: fix build]
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1705011432220.137835@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Suggested-by: Minchan Kim <minchan@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yevgen Pronenko [Mon, 10 Jul 2017 22:47:17 +0000 (15:47 -0700)]
mm/memory.c: convert to DEFINE_DEBUGFS_ATTRIBUTE
The preferred strategy to define debugfs attributes is to use the
DEFINE_DEBUGFS_ATTRIBUTE() macro and to use debugfs_create_file_unsafe().
Link: http://lkml.kernel.org/r/20170528145948.32127-1-y.pronenko@gmail.com
Signed-off-by: Yevgen Pronenko <y.pronenko@gmail.com>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vlastimil Babka [Mon, 10 Jul 2017 22:47:14 +0000 (15:47 -0700)]
mm, page_alloc: fallback to smallest page when not stealing whole pageblock
Since commit
3bc48f96cf11 ("mm, page_alloc: split smallest stolen page
in fallback") we pick the smallest (but sufficient) page of all that
have been stolen from a pageblock of different migratetype. However,
there are cases when we decide not to steal the whole pageblock.
Practically in the current implementation it means that we are trying to
fallback for a MIGRATE_MOVABLE allocation of order X, go through the
freelists from MAX_ORDER-1 down to X, and find free page of order Y. If
Y is less than pageblock_order / 2, we decide not to steal all pages
from the pageblock. When Y > X, it means we are potentially splitting a
larger page than we need, as there might be other pages of order Z,
where X <= Z < Y. Since Y is already too small to steal whole
pageblock, picking smallest available Z will result in the same decision
and we avoid splitting a higher-order page in a MIGRATE_UNMOVABLE or
MIGRATE_RECLAIMABLE pageblock.
This patch therefore changes the fallback algorithm so that in the
situation described above, we switch the fallback search strategy to go
from order X upwards to find the smallest suitable fallback. In theory
there shouldn't be a downside of this change wrt fragmentation.
This has been tested with mmtests' stress-highalloc performing
GFP_KERNEL order-4 allocations, here is the relevant extfrag tracepoint
statistics:
4.12.0-rc2 4.12.0-rc2
1-kernel4 2-kernel4
Page alloc extfrag event
25640976 69680977
Extfrag fragmenting
25621086 69661364
Extfrag fragmenting for unmovable 74409 73204
Extfrag fragmenting unmovable placed with movable 69003 67684
Extfrag fragmenting unmovable placed with reclaim. 5406 5520
Extfrag fragmenting for reclaimable 6398 8467
Extfrag fragmenting reclaimable placed with movable 869 884
Extfrag fragmenting reclaimable placed with unmov. 5529 7583
Extfrag fragmenting for movable
25540279 69579693
Since we force movable allocations to steal the smallest available page
(which we then practially always split), we steal less per fallback, so
the number of fallbacks increases and steals potentially happen from
different pageblocks. This is however not an issue for movable pages
that can be compacted.
Importantly, the "unmovable placed with movable" statistics is lower,
which is the result of less fragmentation in the unmovable pageblocks.
The effect on reclaimable allocation is a bit unclear.
Link: http://lkml.kernel.org/r/20170529093947.22618-1-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Shaohua Li [Mon, 10 Jul 2017 22:47:11 +0000 (15:47 -0700)]
swap: add block io poll in swapin path
For fast flash disk, async IO could introduce overhead because of
context switch. block-mq now supports IO poll, which improves
performance and latency a lot. swapin is a good place to use this
technique, because the task is waiting for the swapin page to continue
execution.
In my virtual machine, directly read 4k data from a NVMe with iopoll is
about 60% better than that without poll. With iopoll support in swapin
patch, my microbenchmark (a task does random memory write) is about
10%~25% faster. CPU utilization increases a lot though, 2x and even 3x
CPU utilization. This will depend on disk speed.
While iopoll in swapin isn't intended for all usage cases, it's a win
for latency sensistive workloads with high speed swap disk. block layer
has knob to control poll in runtime. If poll isn't enabled in block
layer, there should be no noticeable change in swapin.
I got a chance to run the same test in a NVMe with DRAM as the media.
In simple fio IO test, blkpoll boosts 50% performance in single thread
test and ~20% in 8 threads test. So this is the base line. In above
swap test, blkpoll boosts ~27% performance in single thread test.
blkpoll uses 2x CPU time though.
If we enable hybid polling, the performance gain has very slight drop
but CPU time is only 50% worse than that without blkpoll. Also we can
adjust parameter of hybid poll, with it, the CPU time penality is
reduced further. In 8 threads test, blkpoll doesn't help though. The
performance is similar to that without blkpoll, but cpu utilization is
similar too. There is lock contention in swap path. The cpu time
spending on blkpoll isn't high. So overall, blkpoll swapin isn't worse
than that without it.
The swapin readahead might read several pages in in the same time and
form a big IO request. Since the IO will take longer time, it doesn't
make sense to do poll, so the patch only does iopoll for single page
swapin.
[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/070c3c3e40b711e7b1390002c991e86a-b5408f0@7511894063d3764ff01ea8111f5a004d7dd700ed078797c204a24e620ddb965c
Signed-off-by: Shaohua Li <shli@fb.com>
Cc: Tim Chen <tim.c.chen@intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Jens Axboe <axboe@fb.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Mon, 10 Jul 2017 17:59:29 +0000 (10:59 -0700)]
Merge tag 'for-linus-4.13-v2' of git://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"Some small fixes for IPMI, and one medium sized changed.
The medium sized change is adding a platform device for IPMI entries
in the DMI table. Otherwise there is no auto loading for IPMI devices
if they are only in the DMI table"
* tag 'for-linus-4.13-v2' of git://github.com/cminyard/linux-ipmi:
ipmi:ssif: Add missing unlock in error branch
char: ipmi: constify bmc_dev_attr_group and bmc_device_type
ipmi:ssif: Check dev before setting drvdata
ipmi: Convert DMI handling over to a platform device
ipmi: Create a platform device for a DMI-specified IPMI interface
ipmi: use rcu lock around call to intf->handlers->sender()
ipmi:ssif: Use i2c_adapter_id instead of adapter->nr
ipmi: Use the proper default value for register size in ACPI
ipmi_ssif: remove redundant null check on array client->adapter->name
ipmi/watchdog: fix watchdog timeout set on reboot
ipmi_ssif: unlock on allocation failure
Linus Torvalds [Mon, 10 Jul 2017 17:51:53 +0000 (10:51 -0700)]
Merge tag 'xfs-4.13-merge-5' of git://git./fs/xfs/xfs-linux
Pull XFS updates from Darrick Wong:
"Here are some changes for you for 4.13. For the most part it's fixes
for bugs and deadlock problems, and preparation for online fsck in
some future merge window.
- Avoid quotacheck deadlocks
- Fix transaction overflows when bunmapping fragmented files
- Refactor directory readahead
- Allow admin to configure if ASSERT is fatal
- Improve transaction usage detail logging during overflows
- Minor cleanups
- Don't leak log items when the log shuts down
- Remove double-underscore typedefs
- Various preparation for online scrubbing
- Introduce new error injection configuration sysfs knobs
- Refactor dq_get_next to use extent map directly
- Fix problems with iterating the page cache for unwritten data
- Implement SEEK_{HOLE,DATA} via iomap
- Refactor XFS to use iomap SEEK_HOLE and SEEK_DATA
- Don't use MAXPATHLEN to check on-disk symlink target lengths"
* tag 'xfs-4.13-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (48 commits)
xfs: don't crash on unexpected holes in dir/attr btrees
xfs: rename MAXPATHLEN to XFS_SYMLINK_MAXLEN
xfs: fix contiguous dquot chunk iteration livelock
xfs: Switch to iomap for SEEK_HOLE / SEEK_DATA
vfs: Add iomap_seek_hole and iomap_seek_data helpers
vfs: Add page_cache_seek_hole_data helper
xfs: remove a whitespace-only line from xfs_fs_get_nextdqblk
xfs: rewrite xfs_dq_get_next_id using xfs_iext_lookup_extent
xfs: Check for m_errortag initialization in xfs_errortag_test
xfs: grab dquots without taking the ilock
xfs: fix semicolon.cocci warnings
xfs: Don't clear SGID when inheriting ACLs
xfs: free cowblocks and retry on buffered write ENOSPC
xfs: replace log_badcrc_factor knob with error injection tag
xfs: convert drop_writes to use the errortag mechanism
xfs: remove unneeded parameter from XFS_TEST_ERROR
xfs: expose errortag knobs via sysfs
xfs: make errortag a per-mountpoint structure
xfs: free uncommitted transactions during log recovery
xfs: don't allow bmap on rt files
...
Linus Torvalds [Mon, 10 Jul 2017 17:27:48 +0000 (10:27 -0700)]
Merge branch 'nowait-aio-btrfs-fixup' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"This fixes a user-visible bug introduced by the nowait-aio patches
merged in this cycle"
* 'nowait-aio-btrfs-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: nowait aio: Correct assignment of pos
Linus Torvalds [Mon, 10 Jul 2017 17:13:45 +0000 (10:13 -0700)]
Merge branch 'fix-uio' of git://git./linux/kernel/git/viro/vfs
Pull copy*_iter fix from Al Viro.
[ Al used entirely the wrong return value. Oopsie. ]
* 'fix-uio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix brown paperbag bug in inlined copy_..._iter()
Linus Torvalds [Mon, 10 Jul 2017 16:22:48 +0000 (09:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
- open/close tracking improvements from Dmitry Torokhov
- battery support improvements in Wacom driver from Jason Gerecke
- Win8 support fixes from Benjamin Tissories and Hans de Geode
- misc fixes to Intel-ISH driver from Arnd Bergmann
- support for quite a few new devices and small assorted fixes here and
there
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (35 commits)
HID: intel-ish-hid: Enable Gemini Lake ish driver
HID: intel-ish-hid: Enable Cannon Lake ish driver
HID: wacom: fix mistake in printk
HID: multitouch: optimize the sticky fingers timer
HID: multitouch: fix rare Win 8 cases when the touch up event gets missing
HID: multitouch: use BIT macro
HID: Add driver for Retrode2 joypad adapter
HID: multitouch: Add support for Google Rose Touchpad
HID: multitouch: Support PTP Stick and Touchpad device
HID: core: don't use negative operands when shift
HID: apple: Use country code to detect ISO keyboards
HID: remove no longer used hid->open field
greybus: hid: remove custom locking from gb_hid_open/close
HID: usbhid: remove custom locking from usbhid_open/close
HID: i2c-hid: remove custom locking from i2c_hid_open/close
HID: serialize hid_hw_open and hid_hw_close
HID: usbhid: do not rely on hid->open when deciding to do IO
HID: hiddev: use hid_hw_power instead of usbhid_get/put_power
HID: hiddev: use hid_hw_open/close instead of usbhid_open/close
HID: asus: Add support for Zen AiO MD-5110 keyboard
...
Goldwyn Rodrigues [Wed, 5 Jul 2017 03:33:07 +0000 (22:33 -0500)]
btrfs: nowait aio: Correct assignment of pos
Assigning pos for usage early messes up in append mode, where the pos is
re-assigned in generic_write_checks(). Assign pos later to get the
correct position to write from iocb->ki_pos.
Since check_can_nocow also uses the value of pos, we shift
generic_write_checks() before check_can_nocow(). Checks with IOCB_DIRECT
are present in generic_write_checks(), so checking for IOCB_NOWAIT is
enough.
Also, put locking sequence in the fast path.
This fixes a user visible bug, as reported:
"apparently breaks several shell related features on my system.
In zsh history stopped working, because no new entries are added
anymore.
I fist noticed the issue when I tried to build mplayer. It uses a shell
script to generate a help_mp.h file:
[...]
Here is a simple testcase:
% echo "foo" >> test
% echo "foo" >> test
% cat test
foo
%
"
Fixes:
edf064e7c6fe ("btrfs: nowait aio support")
CC: Jens Axboe <axboe@kernel.dk>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Link: https://lkml.kernel.org/r/20170704042306.GA274@x4
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Al Viro [Mon, 10 Jul 2017 11:40:49 +0000 (07:40 -0400)]
fix brown paperbag bug in inlined copy_..._iter()
"copied nothing" == "return 0", not "return full size".
Fixes:
aa28de275a24 "iov_iter/hardening: move object size checks to inlined part"
Spotted-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Jiri Kosina [Mon, 10 Jul 2017 09:11:25 +0000 (11:11 +0200)]
Merge branches 'for-4.13/multitouch', 'for-4.13/retrode', 'for-4.13/transport-open-close-consolidation', 'for-4.13/upstream' and 'for-4.13/wacom' into for-linus
Jiri Kosina [Mon, 10 Jul 2017 09:11:05 +0000 (11:11 +0200)]
Merge branches 'for-4.13/ish' and 'for-4.13/ite' into for-linus
Conflicts:
drivers/hid/hid-core.c
Jiri Kosina [Mon, 10 Jul 2017 08:56:59 +0000 (10:56 +0200)]
Merge branches 'for-4.13/apple' and 'for-4.13/asus' into for-linus
Conflicts:
drivers/hid/hid-core.c
Linus Torvalds [Mon, 10 Jul 2017 01:48:37 +0000 (18:48 -0700)]
Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main pull request for the drm, I think I've got one later
driver pull for mediatek SoC driver, I'm undecided on if it needs to
go to you yet.
Otherwise summary below:
Core drm:
- Atomic add driver private objects
- Deprecate preclose hook in modern drivers
- MST bandwidth tracking
- Use kvmalloc in more places
- Add mode_valid hook for crtc/encoder/bridge
- Reduce sync_file construction time
- Documentation updates
- New DRM synchronisation object support
New drivers:
- pl111 - pl111 CLCD display controller
Panel:
- Innolux P079ZCA panel driver
- Add NL12880B20-05, NL192108AC18-02D, P320HVN03 panels
- panel-samsung-s6e3ha2: Add s6e3hf2 panel support
i915:
- SKL+ watermark fixes
- G4x/G33 reset improvements
- DP AUX backlight improvements
- Buffer based GuC/host communication
- New getparam for (sub)slice infomation
- Cannonlake and Coffeelake initial patches
- Execbuf optimisations
radeon/amdgpu:
- Lots of Vega10 bug fixes
- Preliminary raven support
- KIQ support for compute rings
- MEC queue management rework
- DCE6 Audio support
- SR-IOV improvements
- Better radeon/amdgpu selection support
nouveau:
- HDMI stereoscopic support
- Display code rework for >= GM20x GPUs
msm:
- GEM rework for fine-grained locking
- Per-process pagetable work
- HDMI fixes for Snapdragon 820.
vc4:
- Remove 256MB CMA limit from vc4
- Add out-fence support
- Add support for cygnus
- Get/set tiling ioctls support
- Add T-format tiling support for scanout
zte:
- add VGA support.
etnaviv:
- Thermal throttle support for newer GPUs
- Restore userspace buffer cache performance
- dma-buf sync fix
stm:
- add stm32f429 display support
exynos:
- Rework vblank handling
- Fixup sw-trigger code
sun4i:
- V3s display engine support
- HDMI support for older SoCs
- Preliminary work on dual-pipeline SoCs.
rcar-du:
- VSP work
imx-drm:
- Remove counter load enable from PRE
- Double read/write reduction flag support
tegra:
- Documentation for the host1x and drm driver.
- Lots of staging ioctl fixes due to grate project work.
omapdrm:
- dma-buf fence support
- TILER rotation fixes"
* tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux: (1270 commits)
drm: Remove unused drm_file parameter to drm_syncobj_replace_fence()
drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu.
amdgpu: Set cik/si_support to 1 by default if radeon isn't built
drm/amdgpu/gfx9: fix driver reload with KIQ
drm/amdgpu/gfx8: fix driver reload with KIQ
drm/amdgpu: Don't call amd_powerplay_destroy() if we don't have powerplay
drm/ttm: Fix use-after-free in ttm_bo_clean_mm
drm/amd/amdgpu: move get memory type function from early init to sw init
drm/amdgpu/cgs: always set reference clock in mode_info
drm/amdgpu: fix vblank_time when displays are off
drm/amd/powerplay: power value format change for Vega10
drm/amdgpu/gfx9: support the amdgpu.disable_cu option
drm/amd/powerplay: change PPSMC_MSG_GetCurrPkgPwr for Vega10
drm/amdgpu: Make amdgpu_cs_parser_init static (v2)
drm/amdgpu/cs: fix a typo in a comment
drm/amdgpu: Fix the exported always on CU bitmap
drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static
drm/amdgpu/psp: upper_32_bits/lower_32_bits for address setup
drm/amd/powerplay/cz: print message if smc message fails
drm/amdgpu: fix typo in amdgpu_debugfs_test_ib_init
...
David Howells [Thu, 6 Jul 2017 14:50:27 +0000 (15:50 +0100)]
afs: Add metadata xattrs
Add xattrs to allow the user to get/set metadata in lieu of having pioctl()
available. The following xattrs are now available:
- "afs.cell"
The name of the cell in which the vnode's volume resides.
- "afs.fid"
The volume ID, vnode ID and vnode uniquifier of the file as three hex
numbers separated by colons.
- "afs.volume"
The name of the volume in which the vnode resides.
For example:
# getfattr -d -m ".*" /mnt/scratch
getfattr: Removing leading '/' from absolute path names
# file: mnt/scratch
afs.cell="mycell.myorg.org"
afs.fid="10000b:1:1"
afs.volume="scratch"
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marc Dionne [Thu, 6 Jul 2017 14:50:18 +0000 (15:50 +0100)]
afs: Ignore AFS_ACE_READ and AFS_ACE_WRITE for directories
The AFS_ACE_READ and AFS_ACE_WRITE permission bits should not
be used to make access decisions for the directory itself. They
are meant to control access for the objects contained in that
directory.
Reading a directory is allowed if the AFS_ACE_LOOKUP bit is set.
This would cause an incorrect access denied error for a directory
with AFS_ACE_LOOKUP but not AFS_ACE_READ.
The AFS_ACE_WRITE bit does not allow operations that modify the
directory. For a directory with AFS_ACE_WRITE but neither
AFS_ACE_INSERT nor AFS_ACE_DELETE, this would result in trying
operations that would ultimately be denied by the server.
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cong Wang [Sun, 9 Jul 2017 20:19:55 +0000 (13:19 -0700)]
mqueue: fix a use-after-free in sys_mq_notify()
The retry logic for netlink_attachskb() inside sys_mq_notify()
is nasty and vulnerable:
1) The sock refcnt is already released when retry is needed
2) The fd is controllable by user-space because we already
release the file refcnt
so we when retry but the fd has been just closed by user-space
during this small window, we end up calling netlink_detachskb()
on the error path which releases the sock again, later when
the user-space closes this socket a use-after-free could be
triggered.
Setting 'sock' to NULL here should be sufficient to fix it.
Reported-by: GeneBlue <geneblue.mail@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 9 Jul 2017 18:21:31 +0000 (11:21 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"The x86 updates contain:
- A fix for a longstanding PAT bug, where PAT was reported on CPUs
that do not support it, which leads to wrong caching attributes and
missing MTRR updates
- Prevent overwriting of the e820 firmware table, which causes kexec
kernels to lose the fake mptable which is stored there.
- Cleanup of the UV/BAU code, removing unused code and making local
functions static"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot/e820: Introduce the bootloader provided e820_table_firmware[] table
x86/boot/e820: Rename the e820_table_firmware to e820_table_kexec
x86/boot/e820: Avoid overwriting e820_table_firmware
x86/mm/pat: Don't report PAT on CPUs that don't support it
x86/platform/uv/BAU: Minor cleanup, make some local functions static
Linus Torvalds [Sun, 9 Jul 2017 18:18:59 +0000 (11:18 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timers fixlet from Thomas Gleixner:
"Add Frederic Weisbecker as NOHZ/dyntick maintainer"
[ And an unmentioned and unrelated typo fix in the same commit? Hmm.. ]
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Frederic Weisbecker as nohz/dyntics maintainer
Linus Torvalds [Sun, 9 Jul 2017 18:16:19 +0000 (11:16 -0700)]
Merge branch 'smp-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull smp/hotplug fix from Thomas Gleixner:
"A single fix for a brown paperbag bug:
The unparking of the initial percpu threads of an upcoming CPU happens
right now on the idle task, but that's wrong as the unpark function
might sleep. Move it to the control CPU."
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp/hotplug: Move unparking of percpu threads to the control CPU
Linus Torvalds [Sun, 9 Jul 2017 17:52:16 +0000 (10:52 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"This scheduler update provides:
- The (hopefully) final fix for the vtime accounting issues which
were around for quite some time
- Use types known to user space in UAPI headers to unbreak user space
builds
- Make load balancing respect the current scheduling domain again
instead of evaluating unrelated CPUs"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/headers/uapi: Fix linux/sched/types.h userspace compilation errors
sched/fair: Fix load_balance() affinity redo path
sched/cputime: Accumulate vtime on top of nsec clocksource
sched/cputime: Move the vtime task fields to their own struct
sched/cputime: Rename vtime fields
sched/cputime: Always set tsk->vtime_snap_whence after accounting vtime
vtime, sched/cputime: Remove vtime_account_user()
Revert "sched/cputime: Refactor the cputime_adjust() code"
Linus Torvalds [Sun, 9 Jul 2017 17:49:47 +0000 (10:49 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A couple of fixes for perf and kprobes:
- Add he missing exclude_kernel attribute for the precise_ip level so
!CAP_SYS_ADMIN users get the proper results.
- Warn instead of failing completely when perf has no unwind support
for a particular architectiure built in.
- Ensure that jprobes are at function entry and not at some random
place"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kprobes: Ensure that jprobe probepoints are at function entry
kprobes: Simplify register_jprobes()
kprobes: Rename [arch_]function_offset_within_entry() to [arch_]kprobe_on_func_entry()
perf unwind: Do not fail due to missing unwind support
perf evsel: Set attr.exclude_kernel when probing max attr.precise_ip
Linus Torvalds [Sun, 9 Jul 2017 17:47:50 +0000 (10:47 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
- Fix the EINTR logic in rwsem-spinlock to avoid double locking by a
writer and a reader
- Add a missing include to qspinlocks
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/qspinlock: Explicitly include asm/prefetch.h
locking/rwsem-spinlock: Fix EINTR branch in __down_write_common()
Linus Torvalds [Sun, 9 Jul 2017 17:24:46 +0000 (10:24 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
- A few fixes mopping up the fallout of the big irq overhaul
- Move the interrupt resource management logic out of the spin locked,
irq disabled region to avoid unnecessary restrictions of the resource
callbacks
- Preparation for reworking the per cpu irq request function.
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdomain: Allow ACPI device nodes to be used as irqdomain identifiers
genirq/debugfs: Remove redundant NULL pointer check
genirq: Allow to pass the IRQF_TIMER flag with percpu irq request
genirq/timings: Move free timings out of spinlocked region
genirq: Move irq resource handling out of spinlocked region
genirq: Add mutex to irq desc to serialize request/free_irq()
genirq: Move bus locking into __setup_irq()
genirq: Force inlining of __irq_startup_managed to prevent build failure
genirq/debugfs: Fix build for !CONFIG_IRQ_DOMAIN
Linus Torvalds [Sun, 9 Jul 2017 16:58:44 +0000 (09:58 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull objtool fix from Thomas Gleixner:
"A fix to the objtool sibling call detection logic to distinguish
normal jumps inside a function from a real sibling call"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix sibling call detection logic
Linus Torvalds [Sun, 9 Jul 2017 16:31:22 +0000 (09:31 -0700)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"The first major feature for ext4 this merge window is the largedir
feature, which allows ext4 directories to support over 2 billion
directory entries (assuming ~64 byte file names; in practice, users
will run into practical performance limits first.) This feature was
originally written by the Lustre team, and credit goes to Artem
Blagodarenko from Seagate for getting this feature upstream.
The second major major feature allows ext4 to support extended
attribute values up to 64k. This feature was also originally from
Lustre, and has been enhanced by Tahsin Erdogan from Google with a
deduplication feature so that if multiple files have the same xattr
value (for example, Windows ACL's stored by Samba), only one copy will
be stored on disk for encoding and caching efficiency.
We also have the usual set of bug fixes, cleanups, and optimizations"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (47 commits)
ext4: fix spelling mistake: "prellocated" -> "preallocated"
ext4: fix __ext4_new_inode() journal credits calculation
ext4: skip ext4_init_security() and encryption on ea_inodes
fs: generic_block_bmap(): initialize all of the fields in the temp bh
ext4: change fast symlink test to not rely on i_blocks
ext4: require key for truncate(2) of encrypted file
ext4: don't bother checking for encryption key in ->mmap()
ext4: check return value of kstrtoull correctly in reserved_clusters_store
ext4: fix off-by-one fsmap error on 1k block filesystems
ext4: return EFSBADCRC if a bad checksum error is found in ext4_find_entry()
ext4: return EIO on read error in ext4_find_entry
ext4: forbid encrypting root directory
ext4: send parallel discards on commit completions
ext4: avoid unnecessary stalls in ext4_evict_inode()
ext4: add nombcache mount option
ext4: strong binding of xattr inode references
ext4: eliminate xattr entry e_hash recalculation for removes
ext4: reserve space for xattr entries/names
quota: add get_inode_usage callback to transfer multi-inode charges
ext4: xattr inode deduplication
...
Linus Torvalds [Sun, 9 Jul 2017 16:03:31 +0000 (09:03 -0700)]
Merge tag 'fscrypt_for_linus' of git://git./linux/kernel/git/tytso/fscrypt
Pull fscrypt updates from Ted Ts'o:
"Add support for 128-bit AES and some cleanups to fscrypt"
* tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
fscrypt: make ->dummy_context() return bool
fscrypt: add support for AES-128-CBC
fscrypt: inline fscrypt_free_filename()
Linus Torvalds [Sun, 9 Jul 2017 15:58:50 +0000 (08:58 -0700)]
Merge branch 'waitid-fix' of git://git./linux/kernel/git/viro/vfs
Pull waitid fix from Al Viro.
* 'waitid-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix waitid(2) breakage
Linus Torvalds [Sat, 8 Jul 2017 22:51:57 +0000 (15:51 -0700)]
Merge tag 'pci-v4.13-changes' of git://git./linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
- add sysfs max_link_speed/width, current_link_speed/width (Wong Vee
Khee)
- make host bridge IRQ mapping much more generic (Matthew Minter,
Lorenzo Pieralisi)
- convert most drivers to pci_scan_root_bus_bridge() (Lorenzo
Pieralisi)
- mutex sriov_configure() (Jakub Kicinski)
- mutex pci_error_handlers callbacks (Christoph Hellwig)
- split ->reset_notify() into ->reset_prepare()/reset_done()
(Christoph Hellwig)
- support multiple PCIe portdrv interrupts for MSI as well as MSI-X
(Gabriele Paoloni)
- allocate MSI/MSI-X vector for Downstream Port Containment (Gabriele
Paoloni)
- fix MSI IRQ affinity pre/post/min_vecs issue (Michael Hernandez)
- test INTx masking during enumeration, not at run-time (Piotr Gregor)
- avoid using device_may_wakeup() for runtime PM (Rafael J. Wysocki)
- restore the status of PCI devices across hibernation (Chen Yu)
- keep parent resources that start at 0x0 (Ard Biesheuvel)
- enable ECRC only if device supports it (Bjorn Helgaas)
- restore PRI and PASID state after Function-Level Reset (CQ Tang)
- skip DPC event if device is not present (Keith Busch)
- check domain when matching SMBIOS info (Sujith Pandel)
- mark Intel XXV710 NIC INTx masking as broken (Alex Williamson)
- avoid AMD SB7xx EHCI USB wakeup defect (Kai-Heng Feng)
- work around long-standing Macbook Pro poweroff issue (Bjorn Helgaas)
- add Switchtec "running" status flag (Logan Gunthorpe)
- fix dra7xx incorrect RW1C IRQ register usage (Arvind Yadav)
- modify xilinx-nwl IRQ chip for legacy interrupts (Bharat Kumar
Gogada)
- move VMD SRCU cleanup after bus, child device removal (Jon Derrick)
- add Faraday clock handling (Linus Walleij)
- configure Rockchip MPS and reorganize (Shawn Lin)
- limit Qualcomm TLP size to 2K (hardware issue) (Srinivas Kandagatla)
- support Tegra MSI 64-bit addressing (Thierry Reding)
- use Rockchip normal (not privileged) register bank (Shawn Lin)
- add HiSilicon Kirin SoC PCIe controller driver (Xiaowei Song)
- add Sigma Designs Tango SMP8759 PCIe controller driver (Marc
Gonzalez)
- add MediaTek PCIe host controller support (Ryder Lee)
- add Qualcomm IPQ4019 support (John Crispin)
- add HyperV vPCI protocol v1.2 support (Jork Loeser)
- add i.MX6 regulator support (Quentin Schulz)
* tag 'pci-v4.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits)
PCI: tango: Add Sigma Designs Tango SMP8759 PCIe host bridge support
PCI: Add DT binding for Sigma Designs Tango PCIe controller
PCI: rockchip: Use normal register bank for config accessors
dt-bindings: PCI: Add documentation for MediaTek PCIe
PCI: Remove __pci_dev_reset() and pci_dev_reset()
PCI: Split ->reset_notify() method into ->reset_prepare() and ->reset_done()
PCI: xilinx: Make of_device_ids const
PCI: xilinx-nwl: Modify IRQ chip for legacy interrupts
PCI: vmd: Move SRCU cleanup after bus, child device removal
PCI: vmd: Correct comment: VMD domains start at 0x10000, not 0x1000
PCI: versatile: Add local struct device pointers
PCI: tegra: Do not allocate MSI target memory
PCI: tegra: Support MSI 64-bit addressing
PCI: rockchip: Use local struct device pointer consistently
PCI: rockchip: Check for clk_prepare_enable() errors during resume
MAINTAINERS: Remove Wenrui Li as Rockchip PCIe driver maintainer
PCI: rockchip: Configure RC's MPS setting
PCI: rockchip: Reconfigure configuration space header type
PCI: rockchip: Split out rockchip_pcie_cfg_configuration_accesses()
PCI: rockchip: Move configuration accesses into rockchip_pcie_cfg_atu()
...
Linus Torvalds [Sat, 8 Jul 2017 19:50:18 +0000 (12:50 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/shli/md
Pull MD update from Shaohua Li:
- fixed deadlock in MD suspend and a potential bug in bio allocation
(Neil Brown)
- fixed signal issue (Mikulas Patocka)
- fixed typo in FailFast test (Guoqing Jiang)
- other trival fixes
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
MD: fix sleep in atomic
MD: fix a null dereference
md: use a separate bio_set for synchronous IO.
md: change the initialization value for a spare device spot to MD_DISK_ROLE_SPARE
md/raid1: remove unused bio in sync_request_write
md/raid10: fix FailFast test for wrong device
md: don't use flush_signals in userspace processes
md: fix deadlock between mddev_suspend() and md_write_start()
Linus Torvalds [Sat, 8 Jul 2017 19:39:37 +0000 (12:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for STM FingerTip touchscreen
- a new driver for D-Link DIR-685 touch keys
- updated list of supported devices in xpad driver
- other assorted updates and fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (23 commits)
MAINTAINERS: update input subsystem patterns
Input: introduce KEY_ASSISTANT
Input: xpad - sync supported devices with XBCD
Input: xpad - sync supported devices with 360Controller
Input: xen-kbdfront - use string constants from PV protocol
Input: stmfts - mark all PM functions as __maybe_unused
Input: add support for the STMicroelectronics FingerTip touchscreen
Input: add D-Link DIR-685 touchkeys driver
Input: s3c2410_ts - handle return value of clk_prepare_enable
Input: axp20x-pek - add wakeup support
Input: synaptics-rmi4 - use %phN to form F34 configuration ID
Input: synaptics-rmi4 - change a char type to u8
Input: sparse-keymap - remove sparse_keymap_free()
Input: tsc2007 - move header file out of I2C realm
Input: mms114 - move header file out of I2C realm
Input: mcs - move header file out of I2C realm
Input: lm8323 - move header file out of I2C realm
Input: elantech - force relative mode on a certain module
Input: elan_i2c - add support for fetching chip type on newer hardware
Input: elan_i2c - check if device is there before really probing
...
Linus Torvalds [Sat, 8 Jul 2017 19:36:50 +0000 (12:36 -0700)]
Merge tag 'dmaengine-4.13-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
- removal of AVR32 support in dw driver as AVR32 is gone
- new driver for Broadcom stream buffer accelerator (SBA) RAID driver
- add support for Faraday Technology FTDMAC020 in amba-pl08x driver
- IOMMU support in pl330 driver
- updates to bunch of drivers
* tag 'dmaengine-4.13-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (36 commits)
dmaengine: qcom_hidma: correct API violation for submit
dmaengine: zynqmp_dma: Remove max len check in zynqmp_dma_prep_memcpy
dmaengine: tegra-apb: Really fix runtime-pm usage
dmaengine: fsl_raid: make of_device_ids const.
dmaengine: qcom_hidma: allow ACPI/DT parameters to be overridden
dmaengine: fsldma: set BWC, DAHTS and SAHTS values correctly
dmaengine: Kconfig: Simplify the help text for MXS_DMA
dmaengine: pl330: Delete unused functions
dmaengine: Replace WARN_TAINT_ONCE() with pr_warn_once()
dmaengine: Kconfig: Extend the dependency for MXS_DMA
dmaengine: mxs: Use %zu for printing a size_t variable
dmaengine: ste_dma40: Cleanup scatterlist layering violations
dmaengine: imx-dma: cleanup scatterlist layering violations
dmaengine: use proper name for the R-Car SoC
dmaengine: imx-sdma: Fix compilation warning.
dmaengine: imx-sdma: Handle return value of clk_prepare_enable
dmaengine: pl330: Add IOMMU support to slave tranfers
dmaengine: DW DMAC: Handle return value of clk_prepare_enable
dmaengine: pl08x: use GENMASK() to create bitmasks
dmaengine: pl08x: Add support for Faraday Technology FTDMAC020
...
Linus Torvalds [Sat, 8 Jul 2017 19:17:25 +0000 (12:17 -0700)]
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- add support for ftrace-with-registers, which is needed for kgraft and
other ftrace tools
- support for mremap() for the sigpage/vDSO so that checkpoint/restore
can work
- add timestamps to each line of the register dump output
- remove the unused KTHREAD_SIZE from nommu
- align the ARM bitops APIs with the generic API (using unsigned long
pointers rather than void pointers)
- make the configuration of userspace Thumb support an expert option so
that we can default it on, and avoid some hard to debug userspace
crashes
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8684/1: NOMMU: Remove unused KTHREAD_SIZE definition
ARM: 8683/1: ARM32: Support mremap() for sigpage/vDSO
ARM: 8679/1: bitops: Align prototypes to generic API
ARM: 8678/1: ftrace: Adds support for CONFIG_DYNAMIC_FTRACE_WITH_REGS
ARM: make configuration of userspace Thumb support an expert option
ARM: 8673/1: Fix __show_regs output timestamps
Linus Torvalds [Sat, 8 Jul 2017 19:14:14 +0000 (12:14 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Queued spinlocks and rwlocks for sparc64, from Babu Moger.
2) Some const'ification from Arvind Yadav.
3) LDC/VIO driver infrastructure changes to facilitate future upcoming
drivers, from Jag Raman.
4) Initialize sched_clock() et al. early so that the initial printk
timestamps are all done while the implementation is available and
functioning. From Pavel Tatashin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (38 commits)
sparc: kernel: pmc: make of_device_ids const.
sparc64: fix typo in property
sparc64: add port_id to VIO device metadata
sparc64: Enhance search for VIO device in MDESC
sparc64: enhance VIO device probing
sparc64: check if a client is allowed to register for MDESC notifications
sparc64: remove restriction on VIO device name size
sparc64: refactor code to obtain cfg_handle property from MDESC
sparc64: add MDESC node name property to VIO device metadata
sparc64: mdesc: use __GFP_REPEAT action modifier for VM allocation
sparc64: expand MDESC interface
sparc64: skip handshake for LDC channels in RAW mode
sparc64: specify the device class in VIO version info. packet
sparc64: ensure VIO operations are defined while being used
sparc: kernel: apc: make of_device_ids const
sparc/time: make of_device_ids const
sparc64: broken %tick frequency on spitfire cpus
sparc64: use prom interface to get %stick frequency
sparc64: optimize functions that access tick
sparc64: add hot-patched and inlined get_tick()
...
Linus Torvalds [Sat, 8 Jul 2017 19:01:22 +0000 (12:01 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"Mostly fixing some light fallout from the changes that went into the
merge window.
1) Fix memory leaks on network namespace teardown in netfilter, from
Liping Zhang.
2) When comparing ipv6 nexthops, we have to take the lightweight
tunnel state into account as well. From David Ahern.
3) Fix socket option object length check in the new TLS code, from
Matthias Rosenfelder.
4) Fix memory leak in nfp driver flower support, from Jakub Kicinski.
5) Several netlink attribute validation fixes in cfg80211, from
Srinivas Dasari.
6) Fix context array leak in virtio_net, from Jason Wang.
7) SKB use after free in hns driver, from Yusheng Lin.
8) Fix socket leak on accept() in RDS, from Sowmini Varadhan. Also
add a WARN_ON() to sock_graft() so other protocol stacks don't
trip over this as well"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
net: ethernet: mediatek: remove useless code in mtk_probe()
mpls: fix uninitialized in_label var warning in mpls_getroute
doc: SKB_GSO_[IPIP|SIT] have been replaced
bonding: avoid NETDEV_CHANGEMTU event when unregistering slave
net/sock: add WARN_ON(parent->sk) in sock_graft()
rds: tcp: use sock_create_lite() to create the accept socket
net: hns: Fix a skb used after free bug
net: hns: Fix a wrong op phy C45 code
net: macb: Adding Support for Jumbo Frames up to 10240 Bytes in SAMA5D3
net: Update networking MAINTAINERS entry.
virtio-net: fix leaking of ctx array
cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES
cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
cfg80211: Check if NAN service ID is of expected size
cfg80211: Check if PMKID attribute is of expected size
arcnet: com20020-pci: Fix an error handling path in 'com20020pci_probe()'
nfp: flower: add missing clean up call to avoid memory leaks
vrf: fix bug_on triggered by rx when destroying a vrf
ptp: dte: Use LL suffix for 64-bit constants
sctp: set the value of flowi6_oif to sk_bound_dev_if to make sctp_v6_get_dst to find the correct route entry.
...
Linus Torvalds [Sat, 8 Jul 2017 17:50:54 +0000 (10:50 -0700)]
Merge branch 'work.misc' of git://git./linux/kernel/git/viro/vfs
Pull misc filesystem updates from Al Viro:
"Assorted normal VFS / filesystems stuff..."
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
dentry name snapshots
Make statfs properly return read-only state after emergency remount
fs/dcache: init in_lookup_hashtable
minix: Deinline get_block, save 2691 bytes
fs: Reorder inode_owner_or_capable() to avoid needless
fs: warn in case userspace lied about modprobe return
Linus Torvalds [Sat, 8 Jul 2017 17:41:53 +0000 (10:41 -0700)]
Merge branch 'for-spi' of git://git./linux/kernel/git/viro/vfs
Pull spi uaccess delousing from Al Viro:
"Getting rid of pointless __get_user() and friends in drivers/spi.
[ the only reason it's on a separate branch is that I hoped it would
be picked by spi folks; looks like mail asking them to grab it got
lost and I hadn't followed up on that ]"
* 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
spidev: quit messing with access_ok()
Linus Torvalds [Sat, 8 Jul 2017 17:15:02 +0000 (10:15 -0700)]
Merge branch 'work.__copy_in_user' of git://git./linux/kernel/git/viro/vfs
Pull __copy_in_user removal from Al Viro:
"There used to be 6 places in the entire tree calling __copy_in_user(),
all of them bogus.
Four got killed off in work.drm branch, this takes care of the
remaining ones and kills the definition of that sucker"
* 'work.__copy_in_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
kill __copy_in_user()
sanitize do_i2c_smbus_ioctl()
Al Viro [Sat, 8 Jul 2017 15:26:39 +0000 (11:26 -0400)]
fix waitid(2) breakage
We lose the distinction between "found a PID" and "nothing, but that's not
an error" a bit too early in waitid(). Easily fixed, fortunately...
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Fixes:
67d7ddded322 ("waitid(2): leave copyout of siginfo to syscall itself")
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Gustavo A. R. Silva [Fri, 7 Jul 2017 20:23:34 +0000 (15:23 -0500)]
net: ethernet: mediatek: remove useless code in mtk_probe()
Remove useless local variables _match_, _soc_ and the code related.
Notice that
const struct of_device_id of_mtk_match[] = {
{ .compatible = "mediatek,mt2701-eth" },
{},
};
So match->data is NULL.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Fri, 7 Jul 2017 18:21:49 +0000 (11:21 -0700)]
mpls: fix uninitialized in_label var warning in mpls_getroute
Fix the below warning generated by static checker:
net/mpls/af_mpls.c:2111 mpls_getroute()
error: uninitialized symbol 'in_label'."
Fixes:
397fc9e5cefe ("mpls: route get support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Fri, 7 Jul 2017 12:08:25 +0000 (14:08 +0200)]
doc: SKB_GSO_[IPIP|SIT] have been replaced
Those enum values don't exist anymore.
Fixes:
7e13318daa4a ("net: define gso types for IPx over IPv4 and IPv6")
CC: Tom Herbert <tom@herbertland.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Thu, 6 Jul 2017 22:01:57 +0000 (15:01 -0700)]
bonding: avoid NETDEV_CHANGEMTU event when unregistering slave
As Hongjun/Nicolas summarized in their original patch:
"
When a device changes from one netns to another, it's first unregistered,
then the netns reference is updated and the dev is registered in the new
netns. Thus, when a slave moves to another netns, it is first
unregistered. This triggers a NETDEV_UNREGISTER event which is caught by
the bonding driver. The driver calls bond_release(), which calls
dev_set_mtu() and thus triggers NETDEV_CHANGEMTU (the device is still in
the old netns).
"
This is a very special case, because the device is being unregistered
no one should still care about the NETDEV_CHANGEMTU event triggered
at this point, we can avoid broadcasting this event on this path,
and avoid touching inetdev_event()/addrconf_notify() path.
It requires to export __dev_set_mtu() to bonding driver.
Reported-by: Hongjun Li <hongjun.li@6wind.com>
Reported-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 8 Jul 2017 10:16:16 +0000 (11:16 +0100)]
Merge branch 'rds-tcp-sock_graft-leak'
Sowmini Varadhan says:
====================
rds-tcp: sock_graft() leak
Following up on the discussion at
https://www.spinics.net/lists/netdev/msg442859.html
- make rds_tcp_accept_one() call sock_create_lite()
- add a WARN_ON() to sock_graft()
Tested by running an infinite while() loop that does
(module-load; rds-stress; module-unload) and monitors
TCP slabinfo while the test is running.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan [Thu, 6 Jul 2017 15:15:07 +0000 (08:15 -0700)]
net/sock: add WARN_ON(parent->sk) in sock_graft()
sock_graft() unilaterally sets up parent->sk based on the
assumption that the existing parent->sk is null. If this
condition is not true, then the existing parent->sk would
be leaked, so add a WARN_ON() to alert callers who may fall
in this category.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sowmini Varadhan [Thu, 6 Jul 2017 15:15:06 +0000 (08:15 -0700)]
rds: tcp: use sock_create_lite() to create the accept socket
There are two problems with calling sock_create_kern() from
rds_tcp_accept_one()
1. it sets up a new_sock->sk that is wasteful, because this ->sk
is going to get replaced by inet_accept() in the subsequent ->accept()
2. The new_sock->sk is a leaked reference in sock_graft() which
expects to find a null parent->sk
Avoid these problems by calling sock_create_lite().
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 8 Jul 2017 10:05:21 +0000 (11:05 +0100)]
Merge branch 'hns-fixes'
Lin Yun Sheng says:
====================
Bugfixs for hns ethernet driver
This patchset fix skb used after free and C45 op code issues
in hns driver.
Patch V2:
1. Remove ndev->feature checking in TX description patch.
2. Add Fixes: Tag in patch description.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Yunsheng Lin [Thu, 6 Jul 2017 02:22:00 +0000 (10:22 +0800)]
net: hns: Fix a skb used after free bug
skb maybe freed in hns_nic_net_xmit_hw() and return NETDEV_TX_OK,
which cause hns_nic_net_xmit to use a freed skb.
BUG: KASAN: use-after-free in hns_nic_net_xmit_hw+0x62c/0x940...
[17659.112635] alloc_debug_processing+0x18c/0x1a0
[17659.117208] __slab_alloc+0x52c/0x560
[17659.120909] kmem_cache_alloc_node+0xac/0x2c0
[17659.125309] __alloc_skb+0x6c/0x260
[17659.128837] tcp_send_ack+0x8c/0x280
[17659.132449] __tcp_ack_snd_check+0x9c/0xf0
[17659.136587] tcp_rcv_established+0x5a4/0xa70
[17659.140899] tcp_v4_do_rcv+0x27c/0x620
[17659.144687] tcp_prequeue_process+0x108/0x170
[17659.149085] tcp_recvmsg+0x940/0x1020
[17659.152787] inet_recvmsg+0x124/0x180
[17659.156488] sock_recvmsg+0x64/0x80
[17659.160012] SyS_recvfrom+0xd8/0x180
[17659.163626] __sys_trace_return+0x0/0x4
[17659.167506] INFO: Freed in kfree_skbmem+0xa0/0xb0 age=23 cpu=1 pid=13
[17659.174000] free_debug_processing+0x1d4/0x2c0
[17659.178486] __slab_free+0x240/0x390
[17659.182100] kmem_cache_free+0x24c/0x270
[17659.186062] kfree_skbmem+0xa0/0xb0
[17659.189587] __kfree_skb+0x28/0x40
[17659.193025] napi_gro_receive+0x168/0x1c0
[17659.197074] hns_nic_rx_up_pro+0x58/0x90
[17659.201038] hns_nic_rx_poll_one+0x518/0xbc0
[17659.205352] hns_nic_common_poll+0x94/0x140
[17659.209576] net_rx_action+0x458/0x5e0
[17659.213363] __do_softirq+0x1b8/0x480
[17659.217062] run_ksoftirqd+0x64/0x80
[17659.220679] smpboot_thread_fn+0x224/0x310
[17659.224821] kthread+0x150/0x170
[17659.228084] ret_from_fork+0x10/0x40
BUG: KASAN: use-after-free in hns_nic_net_xmit+0x8c/0xc0...
[17751.080490] __slab_alloc+0x52c/0x560
[17751.084188] kmem_cache_alloc+0x244/0x280
[17751.088238] __build_skb+0x40/0x150
[17751.091764] build_skb+0x28/0x100
[17751.095115] __alloc_rx_skb+0x94/0x150
[17751.098900] __napi_alloc_skb+0x34/0x90
[17751.102776] hns_nic_rx_poll_one+0x180/0xbc0
[17751.107097] hns_nic_common_poll+0x94/0x140
[17751.111333] net_rx_action+0x458/0x5e0
[17751.115123] __do_softirq+0x1b8/0x480
[17751.118823] run_ksoftirqd+0x64/0x80
[17751.122437] smpboot_thread_fn+0x224/0x310
[17751.126575] kthread+0x150/0x170
[17751.129838] ret_from_fork+0x10/0x40
[17751.133454] INFO: Freed in kfree_skbmem+0xa0/0xb0 age=19 cpu=7 pid=43
[17751.139951] free_debug_processing+0x1d4/0x2c0
[17751.144436] __slab_free+0x240/0x390
[17751.148051] kmem_cache_free+0x24c/0x270
[17751.152014] kfree_skbmem+0xa0/0xb0
[17751.155543] __kfree_skb+0x28/0x40
[17751.159022] napi_gro_receive+0x168/0x1c0
[17751.163074] hns_nic_rx_up_pro+0x58/0x90
[17751.167041] hns_nic_rx_poll_one+0x518/0xbc0
[17751.171358] hns_nic_common_poll+0x94/0x140
[17751.175585] net_rx_action+0x458/0x5e0
[17751.179373] __do_softirq+0x1b8/0x480
[17751.183076] run_ksoftirqd+0x64/0x80
[17751.186691] smpboot_thread_fn+0x224/0x310
[17751.190826] kthread+0x150/0x170
[17751.194093] ret_from_fork+0x10/0x40
Fixes:
13ac695e7ea1 ("net:hns: Add support of Hip06 SoC to the Hislicon Network Subsystem")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Reported-by: Jun He <hjat2005@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yunsheng Lin [Thu, 6 Jul 2017 02:21:59 +0000 (10:21 +0800)]
net: hns: Fix a wrong op phy C45 code
As the user manual described, the second step to write to C45 phy
by mdio should be data, but not address. Here we should fix this
issue.
Fixes:
5b904d39406a ("net: add Hisilicon Network Subsystem MDIO support")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
vishnuvardhan [Wed, 5 Jul 2017 15:36:16 +0000 (17:36 +0200)]
net: macb: Adding Support for Jumbo Frames up to 10240 Bytes in SAMA5D3
As per the SAMA5D3 device specification it supports Jumbo frames.
But the suggested flag and length of bytes it supports was not updated
in this driver config_structure.
The maximum jumbo frames the device supports :
10240 bytes as per the device spec.
While changing the MTU value greater than 1500, it threw error:
sudo ifconfig eth1 mtu 9000
SIOCSIFMTU: Invalid argument
Add this support to driver so that it works as expected and designed.
Signed-off-by: vishnuvardhan <vardhanraj4143@gmail.com>
[nicolas.ferre@microchip.com: modify slightly commit msg]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry V. Levin [Wed, 5 Jul 2017 16:23:28 +0000 (19:23 +0300)]
sched/headers/uapi: Fix linux/sched/types.h userspace compilation errors
Consistently use types provided by <linux/types.h> to fix the following
linux/sched/types.h userspace compilation errors:
/usr/include/linux/sched/types.h:57:2: error: unknown type name 'u32'
u32 size;
...
u64 sched_period;
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # v4.12
Fixes:
e2d1e2aec572 ("sched/headers: Move various ABI definitions to <uapi/linux/sched/types.h>")
Link: http://lkml.kernel.org/r/20170705162328.GA11026@altlinux.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Naveen N. Rao [Fri, 7 Jul 2017 17:07:26 +0000 (22:37 +0530)]
kprobes: Ensure that jprobe probepoints are at function entry
Similar to commit
90ec5e89e393c ("kretprobes: Ensure probe location is
at function entry"), ensure that the jprobe probepoint is at function
entry.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/a4525af6c5a42df385efa31251246cf7cca73598.1499443367.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Naveen N. Rao [Fri, 7 Jul 2017 17:07:25 +0000 (22:37 +0530)]
kprobes: Simplify register_jprobes()
Re-factor jprobe registration functions as the current version is
getting too unwieldy. Move the actual jprobe registration to
register_jprobe() and re-organize code accordingly.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/089cae4bfe73767f765291ee0e6fb0c3d240e5f1.1499443367.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Naveen N. Rao [Fri, 7 Jul 2017 17:07:24 +0000 (22:37 +0530)]
kprobes: Rename [arch_]function_offset_within_entry() to [arch_]kprobe_on_func_entry()
Rename function_offset_within_entry() to scope it to kprobe namespace by
using kprobe_ prefix, and to also simplify it.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Suggested-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/3aa6c7e2e4fb6e00f3c24fa306496a66edb558ea.1499443367.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Stafford Horne [Fri, 7 Jul 2017 19:56:58 +0000 (04:56 +0900)]
locking/qspinlock: Explicitly include asm/prefetch.h
In architectures that use qspinlock, like x86, prefetch is loaded
indirectly via the asm/qspinlock.h include. On other architectures, like
OpenRISC, which may want to use asm-generic/qspinlock.h the built will
fail without the asm/prefetch.h include.
Fix this by including directly.
Signed-off-by: Stafford Horne <shorne@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170707195658.23840-1-shorne@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Josh Poimboeuf [Fri, 7 Jul 2017 14:19:42 +0000 (09:19 -0500)]
objtool: Fix sibling call detection logic
With some configs, objtool reports the following warning:
arch/x86/kernel/ftrace.o: warning: objtool: ftrace_modify_code_direct()+0x2d: sibling call from callable instruction with modified stack frame
The instruction it's complaining about isn't actually a sibling call.
It's just a normal jump to an address inside the function. Objtool
thought it was a sibling call because the instruction's jump_dest wasn't
initialized because the function was supposed to be ignored due to its
use of sync_core().
Objtool ended up validating the function instead of ignoring it because
it didn't properly recognize a sibling call to the function. So fix the
sibling call logic. Also add a warning to catch ignored functions being
validated so we'll get a more useful error message next time.
Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/96cc8ecbcdd8cb29ddd783817b4af918a6a171b0.1499437107.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linus Torvalds [Sat, 8 Jul 2017 04:48:15 +0000 (21:48 -0700)]
Merge branch 'work.read_write' of git://git./linux/kernel/git/viro/vfs
Pull read/write fix from Al Viro:
"file_start_write()/file_end_write() got mixed into vfs_iter_write() by
accident; that's a deadlock for all existing callers - they already do
that, some - quite a bit outside.
Easily fixed, fortunately"
* 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
move file_{start,end}_write() out of do_iter_write()
Linus Torvalds [Sat, 8 Jul 2017 03:39:20 +0000 (20:39 -0700)]
Merge branch 'uaccess-work.iov_iter' of git://git./linux/kernel/git/viro/vfs
Pull iov_iter hardening from Al Viro:
"This is the iov_iter/uaccess/hardening pile.
For one thing, it trims the inline part of copy_to_user/copy_from_user
to the minimum that *does* need to be inlined - object size checks,
basically. For another, it sanitizes the checks for iov_iter
primitives. There are 4 groups of checks: access_ok(), might_fault(),
object size and KASAN.
- access_ok() had been verified by whoever had set the iov_iter up.
However, that has happened in a function far away, so proving that
there's no path to actual copying bypassing those checks is hard
and proving that iov_iter has not been buggered in the meanwhile is
also not pleasant. So we want those redone in actual
copyin/copyout.
- might_fault() is better off consolidated - we know whether it needs
to be checked as soon as we enter iov_iter primitive and observe
the iov_iter flavour. No need to wait until the copyin/copyout. The
call chains are short enough to make sure we won't miss anything -
in fact, it's more robust that way, since there are cases where we
do e.g. forced fault-in before getting to copyin/copyout. It's not
quite what we need to check (in particular, combination of
iovec-backed and set_fs(KERNEL_DS) is almost certainly a bug, not a
cause to skip checks), but that's for later series. For now let's
keep might_fault().
- KASAN checks belong in copyin/copyout - at the same level where
other iov_iter flavours would've hit them in memcpy().
- object size checks should apply to *all* iov_iter flavours, not
just iovec-backed ones.
There are two groups of primitives - one gets the kernel object
described as pointer + size (copy_to_iter(), etc.) while another gets
it as page + offset + size (copy_page_to_iter(), etc.)
For the first group the checks are best done where we actually have a
chance to find the object size. In other words, those belong in inline
wrappers in uio.h, before calling into iov_iter.c. Same kind as we
have for inlined part of copy_to_user().
For the second group there is no object to look at - offset in page is
just a number, it bears no type information. So we do them in the
common helper called by iov_iter.c primitives of that kind. All it
currently does is checking that we are not trying to access outside of
the compound page; eventually we might want to add some sanity checks
on the page involved.
So the things we need in copyin/copyout part of iov_iter.c do not
quite match anything in uaccess.h (we want no zeroing, we *do* want
access_ok() and KASAN and we want no might_fault() or object size
checks done on that level). OTOH, these needs are simple enough to
provide a couple of helpers (static in iov_iter.c) doing just what we
need..."
* 'uaccess-work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
iov_iter: saner checks on copyin/copyout
iov_iter: sanity checks for copy to/from page primitives
iov_iter/hardening: move object size checks to inlined part
copy_{to,from}_user(): consolidate object size checks
copy_{from,to}_user(): move kasan checks and might_fault() out-of-line
Kees Cook [Fri, 7 Jul 2017 18:57:29 +0000 (11:57 -0700)]
exec: Limit arg stack to at most 75% of _STK_LIM
To avoid pathological stack usage or the need to special-case setuid
execs, just limit all arg stack usage to at most 75% of _STK_LIM (6MB).
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 8 Jul 2017 02:38:17 +0000 (19:38 -0700)]
Merge tag 'for-linus-v4.13-2' of git://git./linux/kernel/git/jlayton/linux
Pull Writeback error handling updates from Jeff Layton:
"This pile represents the bulk of the writeback error handling fixes
that I have for this cycle. Some of the earlier patches in this pile
may look trivial but they are prerequisites for later patches in the
series.
The aim of this set is to improve how we track and report writeback
errors to userland. Most applications that care about data integrity
will periodically call fsync/fdatasync/msync to ensure that their
writes have made it to the backing store.
For a very long time, we have tracked writeback errors using two flags
in the address_space: AS_EIO and AS_ENOSPC. Those flags are set when a
writeback error occurs (via mapping_set_error) and are cleared as a
side-effect of filemap_check_errors (as you noted yesterday). This
model really sucks for userland.
Only the first task to call fsync (or msync or fdatasync) will see the
error. Any subsequent task calling fsync on a file will get back 0
(unless another writeback error occurs in the interim). If I have
several tasks writing to a file and calling fsync to ensure that their
writes got stored, then I need to have them coordinate with one
another. That's difficult enough, but in a world of containerized
setups that coordination may even not be possible.
But wait...it gets worse!
The calls to filemap_check_errors can be buried pretty far down in the
call stack, and there are internal callers of filemap_write_and_wait
and the like that also end up clearing those errors. Many of those
callers ignore the error return from that function or return it to
userland at nonsensical times (e.g. truncate() or stat()). If I get
back -EIO on a truncate, there is no reason to think that it was
because some previous writeback failed, and a subsequent fsync() will
(incorrectly) return 0.
This pile aims to do three things:
1) ensure that when a writeback error occurs that that error will be
reported to userland on a subsequent fsync/fdatasync/msync call,
regardless of what internal callers are doing
2) report writeback errors on all file descriptions that were open at
the time that the error occurred. This is a user-visible change,
but I think most applications are written to assume this behavior
anyway. Those that aren't are unlikely to be hurt by it.
3) document what filesystems should do when there is a writeback
error. Today, there is very little consistency between them, and a
lot of cargo-cult copying. We need to make it very clear what
filesystems should do in this situation.
To achieve this, the set adds a new data type (errseq_t) and then
builds new writeback error tracking infrastructure around that. Once
all of that is in place, we change the filesystems to use the new
infrastructure for reporting wb errors to userland.
Note that this is just the initial foray into cleaning up this mess.
There is a lot of work remaining here:
1) convert the rest of the filesystems in a similar fashion. Once the
initial set is in, then I think most other fs' will be fairly
simple to convert. Hopefully most of those can in via individual
filesystem trees.
2) convert internal waiters on writeback to use errseq_t for
detecting errors instead of relying on the AS_* flags. I have some
draft patches for this for ext4, but they are not quite ready for
prime time yet.
This was a discussion topic this year at LSF/MM too. If you're
interested in the gory details, LWN has some good articles about this:
https://lwn.net/Articles/718734/
https://lwn.net/Articles/724307/"
* tag 'for-linus-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
btrfs: minimal conversion to errseq_t writeback error reporting on fsync
xfs: minimal conversion to errseq_t writeback error reporting
ext4: use errseq_t based error handling for reporting data writeback errors
fs: convert __generic_file_fsync to use errseq_t based reporting
block: convert to errseq_t based writeback error tracking
dax: set errors in mapping when writeback fails
Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors
mm: set both AS_EIO/AS_ENOSPC and errseq_t in mapping_set_error
fs: new infrastructure for writeback error handling and reporting
lib: add errseq_t type and infrastructure for handling it
mm: don't TestClearPageError in __filemap_fdatawait_range
mm: clear AS_EIO/AS_ENOSPC when writeback initiation fails
jbd2: don't clear and reset errors after waiting on writeback
buffer: set errors in mapping at the time that the error occurs
fs: check for writeback errors after syncing out buffers in generic_file_fsync
buffer: use mapping_set_error instead of setting the flag
mm: fix mapping_set_error call in me_pagecache_dirty
Darrick J. Wong [Sat, 8 Jul 2017 01:55:17 +0000 (18:55 -0700)]
xfs: don't crash on unexpected holes in dir/attr btrees
In quite a few places we call xfs_da_read_buf with a mappedbno that we
don't control, then assume that the function passes back either an error
code or a buffer pointer. Unfortunately, if mappedbno == -2 and bno
maps to a hole, we get a return code of zero and a NULL buffer, which
means that we crash if we actually try to use that buffer pointer. This
happens immediately when we set the buffer type for transaction context.
Therefore, check that we have no error code and a non-NULL bp before
trying to use bp. This patch is a follow-up to an incomplete fix in
96a3aefb8ffde231 ("xfs: don't crash if reading a directory results in an
unexpected hole").
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Linus Torvalds [Sat, 8 Jul 2017 01:39:15 +0000 (18:39 -0700)]
Merge tag 'for-linus-v4.13-1' of git://git./linux/kernel/git/jlayton/linux
Pull Writeback error handling fixes from Jeff Layton:
"The main rationale for all of these changes is to tighten up writeback
error reporting to userland. There are many ways now that writeback
errors can be lost, such that fsync/fdatasync/msync return 0 when
writeback actually failed.
This pile contains a small set of cleanups and writeback error
handling fixes that I was able to break off from the main pile (#2).
Two of the patches in this pile are trivial. The exceptions are the
patch to fix up error handling in write_one_page, and the patch to
make JFS pay attention to write_one_page errors"
* tag 'for-linus-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
fs: remove call_fsync helper function
mm: clean up error handling in write_one_page
JFS: do not ignore return code from write_one_page()
mm: drop "wait" parameter from write_one_page()
Linus Torvalds [Sat, 8 Jul 2017 00:44:36 +0000 (17:44 -0700)]
Merge tag 'cifs-bug-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"First set of CIFS/SMB3 fixes for the merge window. Also improves POSIX
character mapping for SMB3"
* tag 'cifs-bug-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: fix circular locking dependency
cifs: set oparms.create_options rather than or'ing in CREATE_OPEN_BACKUP_INTENT
cifs: Do not modify mid entry after submitting I/O in cifs_call_async
CIFS: add SFM mapping for 0x01-0x1F
cifs: hide unused functions
cifs: Use smb 2 - 3 and cifsacl mount options getacl functions
cifs: prototype declaration and definition for smb 2 - 3 and cifsacl mount options
CIFS: add CONFIG_CIFS_DEBUG_KEYS to dump encryption keys
cifs: set mapping error when page writeback fails in writepage or launder_pages
SMB3: Enable encryption for SMB3.1.1
Linus Torvalds [Sat, 8 Jul 2017 00:38:17 +0000 (17:38 -0700)]
Merge tag 'gfs2-4.13.fixes.addendum' of git://git./linux/kernel/git/gfs2/linux-gfs2
Pull GFS2 fix from Bob Peterson:
"Sorry for the additional merge request, but Andreas discovered this
problem soon after you processed our last gfs2 merge.
This fixes a regression introduced by a patch we did in mid-2015
(commit
88ffbf3e037e: "GFS2: Use resizable hash table for glocks"), so
best to get it fixed. Some code was reverted that should not have
been.
The patch from Andreas Gruenbacher just re-adds code that had been
there originally"
* tag 'gfs2-4.13.fixes.addendum' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Fix glock rhashtable rcu bug
Al Viro [Fri, 7 Jul 2017 18:51:19 +0000 (14:51 -0400)]
dentry name snapshots
take_dentry_name_snapshot() takes a safe snapshot of dentry name;
if the name is a short one, it gets copied into caller-supplied
structure, otherwise an extra reference to external name is grabbed
(those are never modified). In either case the pointer to stable
string is stored into the same structure.
dentry must be held by the caller of take_dentry_name_snapshot(),
but may be freely dropped afterwards - the snapshot will stay
until destroyed by release_dentry_name_snapshot().
Intended use:
struct name_snapshot s;
take_dentry_name_snapshot(&s, dentry);
...
access s.name
...
release_dentry_name_snapshot(&s);
Replaces fsnotify_oldname_...(), gets used in fsnotify to obtain the name
to pass down with event.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 8 Jul 2017 00:06:28 +0000 (17:06 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/linux-security
Pull security layer fixes from James Morris:
"Bugfixes for TPM and SELinux"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
IB/core: Fix static analysis warning in ib_policy_change_task
IB/core: Fix uninitialized variable use in check_qp_port_pkey_settings
tpm: do not suspend/resume if power stays on
tpm: use tpm2_pcr_read() in tpm2_do_selftest()
tpm: use tpm_buf functions in tpm2_pcr_read()
tpm_tis: make ilb_base_addr static
tpm: consolidate the TPM startup code
tpm: Enable CLKRUN protocol for Braswell systems
tpm/tpm_crb: fix priv->cmd_size initialisation
tpm: fix a kernel memory leak in tpm-sysfs.c
tpm: Issue a TPM2_Shutdown for TPM2 devices.
Add "shutdown" to "struct class".
David S. Miller [Fri, 7 Jul 2017 23:18:29 +0000 (00:18 +0100)]
net: Update networking MAINTAINERS entry.
James and Patrick haven't been active in years.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 7 Jul 2017 22:11:12 +0000 (15:11 -0700)]
Merge tag 'kbuild-thinar-v4.13' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild thin archives updates from Masahiro Yamada:
"Thin archives migration by Nicholas Piggin.
THIN_ARCHIVES has been available for a while as an optional feature
only for PowerPC architecture, but we do not need two different
intermediate-artifact schemes.
Using thin archives instead of conventional incremental linking has
various advantages:
- save disk space for builds
- speed-up building a little
- fix some link issues (for example, allyesconfig on ARM) due to more
flexibility for the final linking
- work better with dead code elimination we are planning
As discussed before, this migration has been done unconditionally so
that any problems caused by this will show up with "git bisect".
With testing with 0-day and linux-next, some architectures actually
showed up problems, but they were trivial and all fixed now"
* tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
tile: remove unneeded extra-y in Makefile
kbuild: thin archives make default for all archs
x86/um: thin archives build fix
tile: thin archives fix linking
ia64: thin archives fix linking
sh: thin archives fix linking
kbuild: handle libs-y archives separately from built-in.o archives
kbuild: thin archives use P option to ar
kbuild: thin archives final link close --whole-archives option
ia64: remove unneeded extra-y in Makefile.gate
tile: fix dependency and .*.cmd inclusion for incremental build
sparc64: Use indirect calls in hamming weight stubs
Linus Torvalds [Fri, 7 Jul 2017 22:09:09 +0000 (15:09 -0700)]
Merge tag 'kbuild-misc-v4.13' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull misc Kbuild updates from Masahiro Yamada:
- Use more portable shebang for Perl scripts
- Remove trailing spaces from GCC version in kernel log
- Make initramfs generation deterministic
* tag 'kbuild-misc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: create deterministic initramfs directory listings
scripts/mkcompile_h: Remove trailing spaces from compiler version
scripts: Switch to more portable Perl shebang
Linus Torvalds [Fri, 7 Jul 2017 21:09:24 +0000 (14:09 -0700)]
Merge tag 'kbuild-v4.13' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Clean up Makefiles and scripts
- Improve clang support
- Remove unneeded genhdr-y syntax
- Remove unneeded cc-option-align macro
- Introduce __cc-option macro and use it to fix x86 boot code compiler
flags
* tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: improve comments on KBUILD_SRC
x86/build: Specify stack alignment for clang
x86/build: Use __cc-option for boot code compiler options
kbuild: Add __cc-option macro
kbuild: remove cc-option-align
kbuild: replace genhdr-y with generated-y
kbuild: clang: Disable 'address-of-packed-member' warning
kbuild: remove duplicated arch/*/include/generated/uapi include path
kbuild: speed up checksyscalls.sh
kbuild: simplify silent build (-s) detection
Linus Torvalds [Fri, 7 Jul 2017 21:04:47 +0000 (14:04 -0700)]
Merge tag 'linux-kselftest-4.13-rc1-update' of git://git./linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"This update consists of:
- TAP13 framework and changes to some tests to convert to TAP13.
Converting kselftest output to standard format will help identify
run to run differences and pin point failures easily. TAP13 format
has been in use for several years and the output is human friendly.
Please find the specification:
https://testanything.org/tap-version-13-specification.html
Credit goes to Tim Bird for recommending TAP13 as a suitable
format, and to Grag KH for kick starting the work with help from
Paul Elder and Alice Ferrazzi
The first phase of the TAp13 conversion is included in this update.
Future updates will include updates to rest of the tests.
- Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels.
- Kselftest documnetation has been converted to ReST format. Document
now has a new home under Documentation/dev-tools.
- kselftest_harness.h is now available for general use as a result of
Mickaël Salaün's work.
- Several fixes to skip and/or fail tests gracefully on older
releases"
* tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (48 commits)
selftests: membarrier: use ksft_* var arg msg api
selftests: breakpoints: breakpoint_test_arm64: convert test to use TAP13
selftests: breakpoints: step_after_suspend_test use ksft_* var arg msg api
selftests: breakpoint_test: use ksft_* var arg msg api
kselftest: add ksft_print_msg() function to output general information
kselftest: make ksft_* output functions variadic
selftests/capabilities: Fix the test_execve test
selftests: intel_pstate: add .gitignore
selftests: fix memory-hotplug test
selftests: add missing test name in memory-hotplug test
selftests: check percentage range for memory-hotplug test
selftests: check hot-pluggagble memory for memory-hotplug test
selftests: typo correction for memory-hotplug test
selftests: ftrace: Use md5sum to take less time of checking logs
tools/testing/selftests/sysctl: Add pre-check to the value of writes_strict
kselftest.rst: do some adjustments after ReST conversion
selftest/net/Makefile: Specify output with $(OUTPUT)
selftest/intel_pstate/aperf: Use LDLIBS instead of LDFLAGS
selftest/memfd/Makefile: Fix build error
selftests: lib: Skip tests on missing test modules
...
Linus Torvalds [Fri, 7 Jul 2017 20:58:49 +0000 (13:58 -0700)]
Merge tag 'openrisc-for-linus' of git://github.com/openrisc/linux
Pull OpenRISC updates from Stafford Horne:
"Openrisc fixes for this 4.13 merge window, there is not really much
here:
- include cleanups, one with should reduce build time slightly
- switch to new toolchain to new (>2 year old) toolchain prefix"
* tag 'openrisc-for-linus' of git://github.com/openrisc/linux:
openrisc: defconfig: Cleanup from old Kconfig options
openrisc: explicitly include linux/bug.h in asm/fixmap.h
openrisc: Switch to use export.h instead of module.h
openrisc: Change toolchain from or32- to or1k-
Linus Torvalds [Fri, 7 Jul 2017 20:55:45 +0000 (13:55 -0700)]
Merge tag 'powerpc-4.13-1' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights include:
- Support for STRICT_KERNEL_RWX on 64-bit server CPUs.
- Platform support for FSP2 (476fpe) board
- Enable ZONE_DEVICE on 64-bit server CPUs.
- Generic & powerpc spin loop primitives to optimise busy waiting
- Convert VDSO update function to use new update_vsyscall() interface
- Optimisations to hypercall/syscall/context-switch paths
- Improvements to the CPU idle code on Power8 and Power9.
As well as many other fixes and improvements.
Thanks to: Akshay Adiga, Andrew Donnellan, Andrew Jeffery, Anshuman
Khandual, Anton Blanchard, Balbir Singh, Benjamin Herrenschmidt,
Christophe Leroy, Christophe Lombard, Colin Ian King, Dan Carpenter,
Gautham R. Shenoy, Hari Bathini, Ian Munsie, Ivan Mikhaylov, Javier
Martinez Canillas, Madhavan Srinivasan, Masahiro Yamada, Matt Brown,
Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Naveen N.
Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pavel Machek,
Russell Currey, Santosh Sivaraj, Stephen Rothwell, Thiago Jung
Bauermann, Yang Li"
* tag 'powerpc-4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
powerpc/Kconfig: Enable STRICT_KERNEL_RWX for some configs
powerpc/mm/radix: Implement STRICT_RWX/mark_rodata_ro() for Radix
powerpc/mm/hash: Implement mark_rodata_ro() for hash
powerpc/vmlinux.lds: Align __init_begin to 16M
powerpc/lib/code-patching: Use alternate map for patch_instruction()
powerpc/xmon: Add patch_instruction() support for xmon
powerpc/kprobes/optprobes: Use patch_instruction()
powerpc/kprobes: Move kprobes over to patch_instruction()
powerpc/mm/radix: Fix execute permissions for interrupt_vectors
powerpc/pseries: Fix passing of pp0 in updatepp() and updateboltedpp()
powerpc/64s: Blacklist rtas entry/exit from kprobes
powerpc/64s: Blacklist functions invoked on a trap
powerpc/64s: Un-blacklist system_call() from kprobes
powerpc/64s: Move system_call() symbol to just after setting MSR_EE
powerpc/64s: Blacklist system_call() and system_call_common() from kprobes
powerpc/64s: Convert .L__replay_interrupt_return to a local label
powerpc64/elfv1: Only dereference function descriptor for non-text symbols
cxl: Export library to support IBM XSL
powerpc/dts: Use #include "..." to include local DT
powerpc/perf/hv-24x7: Aggregate result elements on POWER9 SMT8
...
Linus Torvalds [Fri, 7 Jul 2017 20:48:18 +0000 (13:48 -0700)]
vfs: fix flock compat thinko
Michael Ellerman reported that commit
8c6657cb50cb ("Switch flock
copyin/copyout primitives to copy_{from,to}_user()") broke his
networking on a bunch of PPC machines (64-bit kernel, 32-bit userspace).
The reason is a brown-paper bug by that commit, which had the arguments
to "copy_flock_fields()" in the wrong order, breaking the compat
handling for file locking. Apparently very few people run 32-bit user
space on x86 any more, so the PPC people got the honor of noticing this
"feature".
Michael also sent a minimal diff that just changed the order of the
arguments in that macro.
This is not that minimal diff.
This not only changes the order of the arguments in the macro, it also
changes them to be pointers (to be consistent with all the other uses of
those pointers), and makes the functions that do all of this also have
the proper "const" attribution on the source pointers in order to make
issues like that (using the source as a destination) be really obvious.
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 7 Jul 2017 20:42:04 +0000 (13:42 -0700)]
Merge tag 'usb-4.13-rc1' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some remaining USB fixes for 4.13-rc1. They were originally
scheduled for 4.12-final, but I didn't send them to you in time.
Because of that, they were in a separate branch from the larger USB
set of patches, so here they are in a separate pull request.
Nothing major here a all, just three small patches:
- some usb-serial new device ids
- xhci bugfix for some crazy AMD hardware
All of these have been in linux-next for a long time with no reported
issues"
* tag 'usb-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: Limit USB2 port wake support for AMD Promontory hosts
USB: serial: qcserial: new Sierra Wireless EM7305 device ID
USB: serial: option: add two Longcheer device ids
Linus Torvalds [Fri, 7 Jul 2017 20:38:26 +0000 (13:38 -0700)]
Merge tag 'backlight-next-4.13' of git://git./linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"Core Framework:
- Report correct error status to user
Fix-ups:
- Move Backlight headers out of I2C (adp8860, adp8870)"
* tag 'backlight-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
video: adp8870: move header file out of I2C realm
backlight: adp8860: Move header file out of I2C realm
backlight: Report error on failure
Linus Torvalds [Fri, 7 Jul 2017 20:30:05 +0000 (13:30 -0700)]
Merge (most of) tag 'mfd-next-4.13' of git://git./linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Drivers:
- Intel Cherry Trail Whiskey Cove PMIC
- TI LP87565 PMIC
New Device Support:
- Add support for Cannonlake to intel-lpss-pci
- Add support for Simatic IOT2000 to intel_quark_i2c_gpio
New Functionality:
- Add Regulator support (axp20x)
Fix-ups:
- Rework IRQ handling (intel_soc_pmic_bxtwc, rtsx_pcr, cros_ec)
- Remove unused/unwelcome code (ipaq-micro, wm831x-core, da9062-core)
- Provide deregistration on unbind (rn5t618)
- Rework DT code/documentation (arizona)
- Constify things (fsl-imx25-tsadc)
- MAINTAINERS updates (DA9062/61)
- Kconfig configuration adaptions (INTEL_SOC_PMIC, MFD_AXP20X_I2C)
- Switch to DMI matching (intel_quark_i2c_gpio)
- Provide an appropriate level of error checking (wm831x-{i2c,spi},
twl4030-irq, tc6393xb)
- Make use of devm_* (resource handling) calls (intel_soc_pmic_bxtwc,
stm32-timers, atmel-flexcom, cros_ec, fsl-imx25-tsadc,
exynos-lpass, palmas, qcom-spmi-pmic, smsc-ece1099,
motorola-cpcap)"
[ Skipped the last commit in that series that added eight thousand
lines of pointless repeated register definitions. - Linus ]
* tag 'mfd-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (38 commits)
mfd: Add LP87565 PMIC support
mfd: cros_ec: Free IRQ on exit
dt-bindings: vendor-prefixes: Add arctic to vendor prefix
mfd: da9061: Fix to remove BBAT_CONT register from chip model
mfd: da9061: Fix to remove BBAT_CONT register from chip model
mfd: axp20x-i2c: Document that this must be builtin on x86
mfd: Add Cherry Trail Whiskey Cove PMIC driver
mfd: tc6393xb: Handle return value of clk_prepare_enable
mfd: intel_quark_i2c_gpio: Add support for SIMATIC IOT2000 platform
mfd: intel_quark_i2c_gpio: Use dmi_system_id table for retrieving frequency
mfd: motorola-cpcap: Use devm_of_platform_populate()
mfd: smsc-ece: Use devm_of_platform_populate()
mfd: qcom-spmi-pmic: Use devm_of_platform_populate()
mfd: palmas: Use devm_of_platform_populate()
mfd: exynos: Use devm_of_platform_populate()
mfd: fsl-imx25: Use devm_of_platform_populate()
mfd: cros_ec: Use devm_of_platform_populate()
mfd: atmel: Use devm_of_platform_populate()
mfd: stm32-timers: Use devm_of_platform_populate()
mfd: intel_soc_pmic: Select designware i2c-bus driver
...
Linus Torvalds [Fri, 7 Jul 2017 19:40:27 +0000 (12:40 -0700)]
Merge tag 'gpio-v4.13-1' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.13 series.
Some administrativa:
I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
driver coming in through this tree, along with a whole bunch of Exar
8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
where they are ACKed by Andy Shevchenko.
Speaking about drivers/platform/* there is also a bunch of ACPI stuff
coming through that route, again ACKed by Andy.
The MCP23S08 changes are coming in here as well. You already have the
commits in your tree, so this is just a result of sharing an immutable
branch between pin control and GPIO.
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO
line may loose its state during suspend/resume of the system to
save power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes"
* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
serial: exar: Add support for IOT2040 device
gpio-exar/8250-exar: Make set of exported GPIOs configurable
platform: Accept const properties
serial: exar: Factor out platform hooks
gpio-exar/8250-exar: Rearrange gpiochip parenthood
gpio: exar: Fix iomap request
gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
serial: uapi: Add support for bus termination
gpio: rcar: Add R8A7743 (RZ/G1M) support
gpio: gpio-wcove: Fix GPIO control register offset calculation
gpio: lp87565: Add support for GPIO
gpio: dwapb: fix missing first irq for edgeboth irq type
MAINTAINERS: Take maintainership for GPIO ACPI support
gpio: exar: Fix reading of directions and values
gpio: exar: Allocate resources on behalf of the platform device
gpio-exar/8250-exar: Fix passing in of parent PCI device
gpio: mockup: use devm_kcalloc() where applicable
gpio: mockup: add myself as author
gpio: mockup: improve the error message
gpio: mockup: don't return magic numbers from probe()
...
Krzysztof Kozlowski [Thu, 8 Jun 2017 16:10:31 +0000 (18:10 +0200)]
openrisc: defconfig: Cleanup from old Kconfig options
Remove old, dead Kconfig option INET_LRO. It is gone since
commit
7bbf3cae65b6 ("ipv4: Remove inet_lro library").
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Tobias Klauser [Mon, 15 May 2017 10:14:51 +0000 (12:14 +0200)]
openrisc: explicitly include linux/bug.h in asm/fixmap.h
openrisc's asm/fixmap.h uses the BUG() and BUG_ON() macros but relies on
implict inclusion of linux/bug.h which means that changes in other
headers could break the build. Thus, add an explicit include.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Linus Torvalds [Fri, 7 Jul 2017 19:26:13 +0000 (12:26 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time we've got one core change to introduce a bulk clk_get API,
some new clk drivers and updates for old ones. The diff is pretty
spread out across a handful of different SoC clk drivers for Broadcom,
TI, Qualcomm, Renesas, Rockchip, Samsung, and Allwinner, mostly due to
the introduction of new drivers.
Core:
- New clk bulk get APIs
- Clk divider APIs gained the ability to consider a different parent
than the current one
New Drivers:
- Renesas r8a779{0,1,2,4} CPG/MSSR
- TI Keystone SCI firmware controlled clks and OMAP4 clkctrl
- Qualcomm IPQ8074 SoCs
- Cortina Systems Gemini (SL3516/CS3516)
- Rockchip rk3128 SoCs
- Allwinner A83T clk control units
- Broadcom Stingray SoCs
- CPU clks for Mediatek MT8173/MT2701/MT7623 SoCs
Removed Drivers:
- Old non-DT version of the Realview clk driver
Updates:
- Renesas Kconfig/Makefile cleanups
- Amlogic CEC EE clk support
- Improved Armada 7K/8K cp110 clk support
- Rockchip clk id exposing, critical clk markings
- Samsung converted to clk_hw registration APIs
- Fixes for Samsung exynos5420 audio clks
- USB2 clks for Hisilicon hi3798cv200 SoC and video/camera clks for
hi3660"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (147 commits)
clk: gemini: Read status before using the value
clk: scpi: error when clock fails to register
clk: at91: Add sama5d2 suspend/resume
gpio: dt-bindings: Add documentation for gpio controllers on Armada 7K/8K
clk: keystone: TI_SCI_PROTOCOL is needed for clk driver
clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL
clk: uniphier: provide NAND controller clock rate
clk: hisilicon: add usb2 clocks for hi3798cv200 SoC
clk: Add Gemini SoC clock controller
clk: iproc: Remove __init marking on iproc_pll_clk_setup()
clk: bcm: Add clocks for Stingray SOC
dt-bindings: clk: Extend binding doc for Stingray SOC
clk: mediatek: export cpu multiplexer clock for MT8173 SoCs
clk: mediatek: export cpu multiplexer clock for MT2701/MT7623 SoCs
clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work
clk: renesas: cpg-mssr: Use of_device_get_match_data() helper
clk: hi6220: add acpu clock
clk: zx296718: export I2S mux clocks
clk: imx7d: create clocks behind rawnand clock gate
clk: hi3660: Set PPLL2 to 2880M
...
Jason Wang [Fri, 7 Jul 2017 11:56:09 +0000 (19:56 +0800)]
virtio-net: fix leaking of ctx array
Fixes: commit
d45b897b11ea ("virtio_net: allow specifying context for rx")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bjorn Helgaas [Fri, 7 Jul 2017 18:42:25 +0000 (13:42 -0500)]
Merge branch 'pci/host-tango' into next
* pci/host-tango:
PCI: tango: Add Sigma Designs Tango SMP8759 PCIe host bridge support
PCI: Add DT binding for Sigma Designs Tango PCIe controller
Conflicts:
drivers/pci/host/Kconfig
drivers/pci/host/Makefile
Marc Gonzalez [Tue, 20 Jun 2017 08:17:40 +0000 (10:17 +0200)]
PCI: tango: Add Sigma Designs Tango SMP8759 PCIe host bridge support
This driver is required to work around several hardware bugs in the PCIe
controller.
The SMP8759 does not support legacy interrupts or IO space.
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
[bhelgaas: add CONFIG_BROKEN dependency, various cleanups]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Andreas Gruenbacher [Fri, 7 Jul 2017 18:22:05 +0000 (13:22 -0500)]
gfs2: Fix glock rhashtable rcu bug
Before commit
88ffbf3e03 "GFS2: Use resizable hash table for glocks",
glocks were freed via call_rcu to allow reading the glock hashtable
locklessly using rcu. This was then changed to free glocks immediately,
which made reading the glock hashtable unsafe. Bring back the original
code for freeing glocks via call_rcu.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Cc: stable@vger.kernel.org # 4.3+
Linus Torvalds [Fri, 7 Jul 2017 17:37:54 +0000 (10:37 -0700)]
Merge tag 'devicetree-for-4.13' of git://git./linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- vsprintf format specifier %pOF for device_node's. This will enable us
to stop storing the full node names. Conversion of users will happen
next cycle.
- Update documentation to point to DT specification instead of ePAPR.
- Split out graph and property functions to a separate file.
- New of-graph functions for ALSA
- Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
Itead, and BananaPi.
- Improve dtx_diff utility filename printing.
* tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits)
of: document /sys/firmware/fdt
dt-bindings: Add RISC-V vendor prefix
vsprintf: Add %p extension "%pOF" for device tree
of: find_node_by_full_name rewrite to compare each level
of: use kbasename instead of open coding
dt-bindings: thermal: add file extension to brcm,ns-thermal
of: update ePAPR references to point to Devicetree Specification
scripts/dtc: dtx_diff - Show real file names in diff header
of: detect invalid phandle in overlay
of: be consistent in form of file mode
of: make __of_attach_node() static
of: address.c header comment typo
of: fdt.c header comment typo
of: make of_fdt_is_compatible() static
dt-bindings: display-timing.txt convert non-ascii characters to ascii
Documentation: remove overlay-notes reference to non-existent file
dt-bindings: usb: exynos-usb: Add missing required VDD properties
dt-bindings: Add vendor prefix for Linksys
MAINTAINERS: add device tree ABI documentation file
of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd
...
Linus Torvalds [Fri, 7 Jul 2017 17:24:07 +0000 (10:24 -0700)]
Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- Minor improvement : avoid requiring unnecessary startup/shutdown
callback that many drivers seem to not need
- New controller driver for Qualcomm's APCS IPC
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Introduce Qualcomm APCS IPC driver
dt-bindings: mailbox: Introduce Qualcomm APCS global binding
mailbox: Make startup and shutdown ops optional
Linus Torvalds [Fri, 7 Jul 2017 16:44:06 +0000 (09:44 -0700)]
Merge tag 'libnvdimm-for-4.13' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams:
"libnvdimm updates for the latest ACPI and UEFI specifications. This
pull request also includes new 'struct dax_operations' enabling to
undo the abuse of copy_user_nocache() for copy operations to pmem.
The dax work originally missed 4.12 to address concerns raised by Al.
Summary:
- Introduce the _flushcache() family of memory copy helpers and use
them for persistent memory write operations on x86. The
_flushcache() semantic indicates that the cache is either bypassed
for the copy operation (movnt) or any lines dirtied by the copy
operation are written back (clwb, clflushopt, or clflush).
- Extend dax_operations with ->copy_from_iter() and ->flush()
operations. These operations and other infrastructure updates allow
all persistent memory specific dax functionality to be pushed into
libnvdimm and the pmem driver directly. It also allows dax-specific
sysfs attributes to be linked to a host device, for example:
/sys/block/pmem0/dax/write_cache
- Add support for the new NVDIMM platform/firmware mechanisms
introduced in ACPI 6.2 and UEFI 2.7. This support includes the v1.2
namespace label format, extensions to the address-range-scrub
command set, new error injection commands, and a new BTT
(block-translation-table) layout. These updates support inter-OS
and pre-OS compatibility.
- Fix a longstanding memory corruption bug in nfit_test.
- Make the pmem and nvdimm-region 'badblocks' sysfs files poll(2)
capable.
- Miscellaneous fixes and small updates across libnvdimm and the nfit
driver.
Acknowledgements that came after the branch was pushed: commit
6aa734a2f38e ("libnvdimm, region, pmem: fix 'badblocks'
sysfs_get_dirent() reference lifetime") was reviewed by Toshi Kani
<toshi.kani@hpe.com>"
* tag 'libnvdimm-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (42 commits)
libnvdimm, namespace: record 'lbasize' for pmem namespaces
acpi/nfit: Issue Start ARS to retrieve existing records
libnvdimm: New ACPI 6.2 DSM functions
acpi, nfit: Show bus_dsm_mask in sysfs
libnvdimm, acpi, nfit: Add bus level dsm mask for pass thru.
acpi, nfit: Enable DSM pass thru for root functions.
libnvdimm: passthru functions clear to send
libnvdimm, btt: convert some info messages to warn/err
libnvdimm, region, pmem: fix 'badblocks' sysfs_get_dirent() reference lifetime
libnvdimm: fix the clear-error check in nsio_rw_bytes
libnvdimm, btt: fix btt_rw_page not returning errors
acpi, nfit: quiet invalid block-aperture-region warnings
libnvdimm, btt: BTT updates for UEFI 2.7 format
acpi, nfit: constify *_attribute_group
libnvdimm, pmem: disable dax flushing when pmem is fronting a volatile region
libnvdimm, pmem, dax: export a cache control attribute
dax: convert to bitmask for flags
dax: remove default copy_from_iter fallback
libnvdimm, nfit: enable support for volatile ranges
libnvdimm, pmem: fix persistence warning
...