Stefan Haberland [Fri, 14 Jul 2017 08:33:18 +0000 (10:33 +0200)]
s390/dasd: add average request times to dasd statistics
Add average times to the DASD statistics interface.
Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Sebastian Ott [Thu, 15 Jun 2017 15:13:15 +0000 (17:13 +0200)]
s390/scm: use common completion path
Since commit
caf7df122721 ("block: remove the errors field from struct request")
rq->errors can't be (mis)used by block device drivers to store the error
condition for usage during async completion. Because of that I simply used
async completion only for the non-error paths.
This patch places the error within the private data of struct request and
uses async completion for all paths again.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Sebastian Ott [Mon, 3 Jul 2017 13:32:23 +0000 (15:32 +0200)]
s390/pci: log changes to uid checking
Some hypervisors allow to toggle uid checking at runtime. Log
changes to uid checking in s390dbf.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:16 +0000 (15:16 +0200)]
s390/vmcp: simplify vmcp_ioctl()
vmcp_ioctl() has many different return statements and duplicates a lot
of mutex_unlock() calls. Simplify this so that only one return
statement and one mutex_unlock() call is left.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:16 +0000 (15:16 +0200)]
s390/vmcp: return -ENOTTY for unknown ioctl commands
Return -ENOTTY for unknown ioctl commands instead of
-ENOIOCTLCMD. This isn't that much of difference, since common code
will translate -ENOIOCTLCMD to -ENOTTY anyway, but this way it seems
to be more obvious what is happening (at least to me).
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:16 +0000 (15:16 +0200)]
s390/vmcp: split vmcp header file and move to uapi
Split the vmcp header file and move the device driver internal
structure to the C file, and move the ioctl definitions to the uapi
directory.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:15 +0000 (15:16 +0200)]
s390/vmcp: make use of contiguous memory allocator
If memory is fragmented it is unlikely that large order memory
allocations succeed. This has been an issue with the vmcp device
driver since a long time, since it requires large physical contiguous
memory ares for large responses.
To hopefully resolve this issue make use of the contiguous memory
allocator (cma). This patch adds a vmcp specific vmcp cma area with a
default size of 4MB. The size can be changed either via the
VMCP_CMA_SIZE config option at compile time or with the "vmcp_cma"
kernel parameter (e.g. "vmcp_cma=16m").
For any vmcp response buffers larger than 16k memory from the cma area
will be allocated. If such an allocation fails, there is a fallback to
the buddy allocator.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:15 +0000 (15:16 +0200)]
s390/cpcmd,vmcp: avoid GFP_DMA allocations
According to the CP Programming Services manual Diagnose Code 8
"Virtual Console Function" can be used in all addressing modes. Also
the input and output buffers do not have a limitation which specifies
they need to be below the 2GB line.
This is true at least since z/VM 5.4.
Therefore remove the sam31/64 instructions and allow for simple
GFP_KERNEL allocations. This makes it easier to allocate a 1MB page
if the user requested such a large return buffer.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:15 +0000 (15:16 +0200)]
s390/vmcp: fix uaccess check and avoid undefined behavior
The vmcp device driver should return -EFAULT if get_user() fails, due
to an invalid user space address. In addition the buffer size value
from user space is passed unchecked to get_order(). The return value
of get_order(0) undefined.
Therefore explicitly test for zero before calling get_order() and also
return -EFAULT if get_user() fails.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:15 +0000 (15:16 +0200)]
s390/mm: prevent memory offline for memory blocks with cma areas
Memory blocks that contain areas for the contiguous memory allocator
(cma) should not be allowed to go offline. Otherwise this would render
cma completely useless.
This might make sense on other architectures where memory might be
taken offline due to hardware errors, but not on architectures which
support memory hotplug for load balancing.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Mon, 7 Aug 2017 13:16:15 +0000 (15:16 +0200)]
s390/mm: add missing virt_to_pfn() etc. helper functions
Add all the missing little helper functions like virt_to_pfn(),
phys_to_page(), etc. While we had a couple of these helper functions
like e.g. page_to_phys() the other functions were missing, which is
quite annoying if one is looking for exactly such a function.
Therefore finally add all those little helper functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Bhumika Goyal [Wed, 2 Aug 2017 16:07:23 +0000 (21:37 +0530)]
s390/cio: add const to bin_attribute structures
Add const to bin_attribute structures as they are only passed to the
functions device_{remove/create}_bin_file. The corresponding arguments
are of type const, so declare the structures to be const.
Cross compiled for s390 architecture.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Bhumika Goyal [Wed, 2 Aug 2017 16:07:22 +0000 (21:37 +0530)]
s390/sclp: add const to bin_attribute structure
Declare bin_attribute structure as const as it is only passed as an
argument to the function sysfs_create_bin_file. This argument is of
type const, so declare the structure as const.
Cross compiled for s390 architecture.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 2 Aug 2017 11:21:00 +0000 (13:21 +0200)]
s390: use generic asm/unaligned.h
And another header file for which we can use the generic variant,
even though it doesn't look obvious at first glance.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 2 Aug 2017 07:45:02 +0000 (09:45 +0200)]
s390: use generic uapi/asm/swab.h
clang doesn't like s390 specific inline assembler constraints. These
are present in our arch specific uapi/asm/swab.h which again is
required by some ebpf test cases.
For current compiler versions the generic swab.h already makes use of
gcc's builtin functions. Therefore we can simply remove our own header
file and use the generic one.
This will generate worse code if used with compilers before gcc 4.8,
which has no __builtin_bswap16(); or before gcc v4.4, which has no
__builtin_bswap[32|64](). For these cases a C implementation fallback
would be used which generates more code, but is still correct (170KB
extra code for gcc 4.3 with performance_defconfig).
However given that we need (and want) to get rid of the inline
assemblies anyway in order to be able to use clang, the above is just
a minor drawback if old gcc compilers are used.
With current compilers there is close to zero difference, except for
three btrfs bit functions which generate more out-of-line code. The
generated code looks still correct and also uses the s390 specific
byteswap instructions.
Reported-and-tested-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 2 Aug 2017 05:11:57 +0000 (07:11 +0200)]
s390: remove asm/mman.h and asm/types.h
Both header files only include the corresponding uapi header file and
therefore can be removed.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Tue, 1 Aug 2017 05:50:10 +0000 (07:50 +0200)]
s390/nmi: keep comments consistent
The name of bit 36 of the machine check interruption code is "guarded
storage registers validity". Add the missing "validity" part in order
to be consistent with all other comments, which include this piece of
information.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Wed, 26 Jul 2017 06:25:55 +0000 (08:25 +0200)]
Merge tag 'vfio-ccw-
20170724' of git://git./linux/kernel/git/kvms390/vfio-ccw into features
Pull vfio-ccw fix from Cornelia Huck:
"A bugfix in the ccw translation code."
Martin Schwidefsky [Wed, 19 Apr 2017 12:54:05 +0000 (14:54 +0200)]
s390/spinlock: add niai spinlock hints
The z14 machine introduces new mode of the next-instruction-access-intent
NIAI instruction. With NIAI-8 it is possible to pin a cache-line on a
CPU for a small amount of time, NIAI-7 releases the cache-line again.
Finally NIAI-4 can be used to prevent the CPU to speculatively access
memory beyond the compare-and-swap instruction to get the lock.
Use these instruction in the spinlock code.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:17 +0000 (12:39 +0530)]
s390/sclp_ocf: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:16 +0000 (12:39 +0530)]
s390/tape: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
11511 656 16 12183 2f97 drivers/s390/char/tape_core.o
File size After adding 'const':
text data bss dec hex filename
11575 592 16 12183 2f97 drivers/s390/char/tape_core.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:15 +0000 (12:39 +0530)]
s390/raw3270: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
8069 816 16 8901 22c5 drivers/s390/char/raw3270.o
File size After adding 'const':
text data bss dec hex filename
8133 752 16 8901 22c5 drivers/s390/char/raw3270.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:14 +0000 (12:39 +0530)]
s390/qeth: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
6763 1216 0 7979 1f2b drivers/s390/net/qeth_l3_sys.o
File size After adding 'const':
text data bss dec hex filename
7019 960 0 7971 1f2b drivers/s390/net/qeth_l3_sys.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:13 +0000 (12:39 +0530)]
s390/cio: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:12 +0000 (12:39 +0530)]
s390/dasd: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:11 +0000 (12:39 +0530)]
s390/zcrypt_card: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
1019 160 0 1179 49b drivers/s390/crypto/zcrypt_card.o
File size After adding 'const':
text data bss dec hex filename
1083 96 0 1179 49b drivers/s390/crypto/zcrypt_card.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Arvind Yadav [Wed, 19 Jul 2017 07:09:10 +0000 (12:39 +0530)]
s390/zcrypt_queue: constify attribute_group structures.
attribute_group are not supposed to change at runtime. All functions
working with attribute_group provided by <linux/sysfs.h> work
with const attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
1361 96 0 1457 5b1 s390/crypto/zcrypt_queue.o
File size After adding 'const':
text data bss dec hex filename
1425 32 0 1457 5b1 s390/crypto/zcrypt_queue.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Wed, 12 Apr 2017 12:17:25 +0000 (14:17 +0200)]
s390: add support for IBM z14 machines
Add detection for machine type 0x3906 and set the ELF platform name
to z14. Add the miscellaneous-instruction-extension 2 facility to
the list of facilities for z14.
And allow to generate code that only runs on a z14 machine.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Thu, 27 Oct 2016 10:41:39 +0000 (12:41 +0200)]
s390/time: add support for the TOD clock epoch extension
The TOD epoch extension adds 8 epoch bits to the TOD clock to provide
a continuous clock after 2042/09/17. The store-clock-extended (STCKE)
instruction will store the epoch index in the first byte of the
16 bytes stored by the instruction. The read_boot_clock64 and the
read_presistent_clock64 functions need to take the additional bits
into account to give the correct result after 2042/09/17.
The clock-comparator register will stay 64 bit wide. The comparison
of the clock-comparator with the TOD clock is limited to bytes
1 to 8 of the extended TOD format. To deal with the overflow problem
due to an epoch change the clock-comparator sign control in CR0 can
be used to switch the comparison of the 64-bit TOD clock with the
clock-comparator to a signed comparison.
The decision between the signed vs. unsigned clock-comparator
comparisons is done at boot time. Only if the TOD clock is in the
second half of a 142 year epoch the signed comparison is used.
This solves the epoch overflow issue as long as the machine is
booted at least once in an epoch.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Mon, 6 Feb 2017 14:56:14 +0000 (15:56 +0100)]
s390/sclp: single increment assignment control
Set a new option bit of the attach command to speed up memory
hotplug.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Fri, 16 Jun 2017 15:51:15 +0000 (17:51 +0200)]
s390/mm,vmem: simplify region and segment table allocation code
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 5 Jul 2017 05:37:14 +0000 (07:37 +0200)]
KVM: s390: use new mm defines instead of magic values
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 5 Jul 2017 05:37:27 +0000 (07:37 +0200)]
s390/mm: use new mm defines instead of magic values
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Fri, 16 Jun 2017 15:24:39 +0000 (17:24 +0200)]
s390/mm: introduce defines to reflect the hardware mmu
Add various defines like e.g. _REGION1_SHIFT to reflect the hardware
mmu. We have quite a bit code that does not make use of the Linux
memory management primitives but directly modifies page, segment and
region values.
Most of this is open-coded like e.g. "1UL << 53". In order to clean
this up introduce a couple of new defines. The existing Linux memory
management defines are changed, so the mapping to the hardware
implementation is reflected.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 14 Jun 2017 07:07:11 +0000 (09:07 +0200)]
s390/mm: get rid of __ASSEMBLY__ guards within pgtable.h
We have C code also outside of #ifndef __ASSEMBLY__. So these
guards seem to be quite pointless and can be removed.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Wed, 14 Jun 2017 06:57:24 +0000 (08:57 +0200)]
s390/mm: remove and correct comments within pgtable.h
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Wed, 26 Jul 2017 06:23:27 +0000 (08:23 +0200)]
Merge branch 'tlb-flushing' into features
Add the TLB flushing changes via a tip branch to ease merging with
the KVM tree.
Linus Torvalds [Wed, 26 Jul 2017 03:10:10 +0000 (20:10 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three small fixes.
The transfer size fixes are actually correcting some performance drops
on the hpsa and smartpqi cards. The cards actually have an internal
cache for request speed up but bypass it for transfers > 1MB. Since
4.3 the efficiency of our merges has rendered the cache mostly unused,
so limit transfers to under 1MB to recover the cache boost"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sg: fix static checker warning in sg_is_valid_dxfer
scsi: smartpqi: limit transfer length to 1MB
scsi: hpsa: limit transfer length to 1MB
Linus Torvalds [Wed, 26 Jul 2017 02:46:05 +0000 (19:46 -0700)]
Merge tag 'uuid-for-4.13-2' of git://git.infradead.org/users/hch/uuid
Pull uuid fixes from Christoph Hellwig:
- add a missing "!" in the uuid tests
- remove the last remaining user of the uuid_be type, and then the type
and its helpers
* tag 'uuid-for-4.13-2' of git://git.infradead.org/users/hch/uuid:
uuid: remove uuid_be
thunderbolt: use uuid_t instead of uuid_be
uuid: fix incorrect uuid_equal conversion in test_uuid_test
Linus Torvalds [Wed, 26 Jul 2017 00:17:18 +0000 (17:17 -0700)]
Merge tag 'dma-mapping-4.13-2' of git://git.infradead.org/users/hch/dma-mapping
Pull dma mapping fixes from Christoph Hellwig:
"split the global dma coherent pool from the per-device pool.
This fixes a regression in the earlier 4.13 pull requests where the
global pool would override a per-device CMA pool (Vladimir Murzin)"
* tag 'dma-mapping-4.13-2' of git://git.infradead.org/users/hch/dma-mapping:
ARM: NOMMU: Wire-up default DMA interface
dma-coherent: introduce interface for default DMA pool
Linus Torvalds [Tue, 25 Jul 2017 15:51:57 +0000 (08:51 -0700)]
Merge tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggy
Pull JFS fixes from David Kleikamp.
* tag 'jfs-4.13' of git://github.com/kleikamp/linux-shaggy:
jfs: preserve i_mode if __jfs_set_acl() fails
jfs: Don't clear SGID when inheriting ACLs
jfs: atomically read inode size
Linus Torvalds [Tue, 25 Jul 2017 15:49:00 +0000 (08:49 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina:
- regression fix (missing IRQs) for devices that require 'always poll'
quirk, from Dmitry Torokhov
- new device ID addition to Ortek driver, from Benjamin Tissoires
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: ortek: add one more buggy device
HID: usbhid: fix "always poll" quirk
Linus Torvalds [Tue, 25 Jul 2017 15:44:27 +0000 (08:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
"Three bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/mm: set change and reference bit on lazy key enablement
s390: chp: handle CRW_ERC_INIT for channel-path status change
s390/perf: fix problem state detection
Martin Schwidefsky [Tue, 26 Jul 2016 15:02:31 +0000 (17:02 +0200)]
s390/mm,kvm: use nodat PGSTE tag to optimize TLB flushing
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Tue, 26 Jul 2016 14:00:22 +0000 (16:00 +0200)]
s390/mm: add guest ASCE TLB flush optimization
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Tue, 26 Jul 2016 14:53:09 +0000 (16:53 +0200)]
s390/mm: add no-dat TLB flush optimization
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Martin Schwidefsky [Tue, 14 Jun 2016 10:56:01 +0000 (12:56 +0200)]
s390/mm: tag normal pages vs pages used in page tables
The ESSA instruction has a new option that allows to tag pages that
are not used as a page table. Without the tag the hypervisor has to
assume that any guest page could be used in a page table inside the
guest. This forces the hypervisor to flush all guest TLB entries
whenever a host page table entry is invalidated. With the tag
the host can skip the TLB flush if the page is tagged as normal page.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Christoph Hellwig [Thu, 11 May 2017 07:16:24 +0000 (09:16 +0200)]
uuid: remove uuid_be
Everything uses uuid_t now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Christoph Hellwig [Tue, 18 Jul 2017 13:30:05 +0000 (15:30 +0200)]
thunderbolt: use uuid_t instead of uuid_be
Switch thunderbolt to the new uuid type.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Benjamin Tissoires [Tue, 18 Jul 2017 16:28:13 +0000 (18:28 +0200)]
HID: ortek: add one more buggy device
The iHome keypad also requires the same tweak we are doing for other
Ortek devices.
Reported-by: Mairin Duffy <duffy@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Jason J. Herne [Fri, 21 Jul 2017 01:14:36 +0000 (03:14 +0200)]
vfio: ccw: fix bad ptr math for TIC cda translation
When we are translating channel data addresses from guest to host
address space for TIC instructions we are getting incorrect
addresses because of a pointer arithmetic error.
We currently calculate the offset of the TIC's cda from the start
of the channel program chain (ccw->cda - ccw_head). We then add
that to the address of the ccw chain in host memory (iter->ch_ccw).
The problem is that iter->ch_ccw is a pointer to struct ccw1 so
when we increment it we are actually incrementing by the size of
struct ccw1 which is 8 bytes. The intent was to increment by
n-bytes, not n*8.
The fix: cast iter->ch_ccw to char* so it will be incremented by
n*1.
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <
20170721011436.76112-1-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Linus Torvalds [Sun, 23 Jul 2017 23:15:17 +0000 (16:15 -0700)]
Linux 4.13-rc2
Linus Torvalds [Sun, 23 Jul 2017 23:06:21 +0000 (16:06 -0700)]
Properly alphabetize MAINTAINERS file
This adds a perl script to actually parse the MAINTAINERS file, clean up
some whitespace in it, warn about errors in it, and then properly sort
the end result.
My perl-fu is atrocious, so the script has basically been created by
randomly putting various characters in a pile, mixing them around, and
then looking it the end result does anything interesting when used as a
perl script.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 23 Jul 2017 22:08:05 +0000 (15:08 -0700)]
Fix up MAINTAINERS file problems
Prepping for scripting the MAINTAINERS file cleanup (and possible split)
showed a couple of cases where the headers for a couple of entries were
bogus.
There's a few different kinds of bogosities:
- the X-GENE SOC EDAC case was confused and split over two lines
- there were four entries for "GREYBUS PROTOCOLS DRIVERS" that were all
different things.
- the NOKIA N900 CAMERA SUPPORT" was duplicated
all of which were more obvious when you started doing associative arrays
in perl to track these things by the header (so that we can alphabetize
this thing properly, and so that we might split it up by the data too).
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 23 Jul 2017 18:22:45 +0000 (11:22 -0700)]
Merge tag 'for-linus-4.13b-rc2-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Some fixes and cleanups for running under Xen"
* tag 'for-linus-4.13b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/balloon: don't online new memory initially
xen/x86: fix cpu hotplug
xen/grant-table: log the lack of grants
xen/x86: Don't BUG on CPU0 offlining
Juergen Gross [Mon, 10 Jul 2017 08:10:45 +0000 (10:10 +0200)]
xen/balloon: don't online new memory initially
When setting up the Xenstore watch for the memory target size the new
watch will fire at once. Don't try to reach the configured target size
by onlining new memory in this case, as the current memory size will
be smaller in almost all cases due to e.g. BIOS reserved pages.
Onlining new memory will lead to more problems e.g. undesired conflicts
with NVMe devices meant to be operated as block devices.
Instead remember the difference between target size and current size
when the watch fires for the first time and apply it to any further
size changes, too.
In order to avoid races between balloon.c and xen-balloon.c init calls
do the xen-balloon.c initialization from balloon.c.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Juergen Gross [Wed, 5 Jul 2017 14:05:20 +0000 (16:05 +0200)]
xen/x86: fix cpu hotplug
Commit
dc6416f1d711eb4c1726e845d653235dcaae12e1 ("xen/x86: Call
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()")
introduced an error leading to a stack overflow of the idle task when
a cpu was brought offline/online many times: by calling
cpu_startup_entry() instead of returning at the end of xen_play_dead()
do_idle() would be entered again and again.
Don't use cpu_startup_entry(), but cpuhp_online_idle() instead allowing
to return from xen_play_dead().
Cc: <stable@vger.kernel.org> # 4.12
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Wengang Wang [Tue, 18 Jul 2017 07:40:35 +0000 (09:40 +0200)]
xen/grant-table: log the lack of grants
log a message when we enter this situation:
1) we already allocated the max number of available grants from hypervisor
and
2) we still need more (but the request fails because of 1)).
Sometimes the lack of grants causes IO hangs in xen_blkfront devices.
Adding this log would help debuging.
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Vitaly Kuznetsov [Mon, 26 Jun 2017 16:39:30 +0000 (18:39 +0200)]
xen/x86: Don't BUG on CPU0 offlining
CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests
BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a
leftover from ancient times when CPU0 hotplug was impossible, it works
just fine for HVM.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Linus Torvalds [Sat, 22 Jul 2017 16:25:00 +0000 (09:25 -0700)]
Merge tag 'hwmon-for-linus-v4.13-rc2' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Avoid buffer overruns in applesmc driver"
* tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (applesmc) Avoid buffer overruns
Linus Torvalds [Sat, 22 Jul 2017 16:00:24 +0000 (09:00 -0700)]
Merge tag 'tty-4.13-rc2' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty and serial driver fixes for 4.13-rc2. Nothing
huge at all, a revert of a patch that turned out to break things, a
fix up for a new tty ioctl we added in 4.13-rc1 to get the uapi
definition correct, and a few minor serial driver fixes for reported
issues.
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: Fix TIOCGPTPEER ioctl definition
tty: hide unused pty_get_peer function
tty: serial: lpuart: Fix the logic for detecting the 32-bit type UART
serial: imx: Prevent TX buffer PIO write when a DMA has been started
Revert "serial: imx-serial - move DMA buffer configuration to DT"
serial: sh-sci: Uninitialized variables in sysfs files
serial: st-asc: Potential error pointer dereference
Linus Torvalds [Sat, 22 Jul 2017 15:57:24 +0000 (08:57 -0700)]
Merge tag 'char-misc-4.13-rc1' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and misc driver fixes for 4.13-rc2. All fix
reported problems with 4.13-rc1 or older kernels (like the binder
fixes). Full details in the shortlog.
All have been in linux-next with no reported issues"
* tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
w1: omap-hdq: fix error return code in omap_hdq_probe()
regmap: regmap-w1: Fix build troubles
w1: Fix slave count on 1-Wire bus (resend)
mux: mux-core: unregister mux_class in mux_exit()
mux: remove the Kconfig question for the subsystem
nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse
drivers/fsi: fix fsi_slave_mode prototype
fsi: core: register with postcore_initcall
thunderbolt: Correct access permissions for active NVM contents
vmbus: re-enable channel tasklet
spmi: pmic-arb: Always allocate ppid_to_apid table
MAINTAINERS: Add entry for SPMI subsystem
spmi: Include OF based modalias in device uevent
binder: Use wake up hint for synchronous transactions.
binder: use group leader instead of open thread
Revert "android: binder: Sanity check at binder ioctl"
Linus Torvalds [Sat, 22 Jul 2017 15:55:16 +0000 (08:55 -0700)]
Merge tag 'usb-4.13-rc2' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 4.13-rc2.
The usual batch, gadget fixes for reported issues, as well as xhci
fixes, and a small random collection of other fixes for reported
issues.
All have been in linux-next with no reported issues"
* tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
xhci: fix memleak in xhci_run()
usb: xhci: fix spinlock recursion for USB2 test mode
xhci: fix 20000ms port resume timeout
usb: xhci: Issue stop EP command only when the EP state is running
xhci: Bad Ethernet performance plugged in ASM1042A host
xhci: Fix NULL pointer dereference when cleaning up streams for removed host
usb: renesas_usbhs: gadget: disable all eps when the driver stops
usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
usb: gadget: udc: renesas_usb3: protect usb3_ep->started in usb3_start_pipen()
usb: gadget: udc: renesas_usb3: fix zlp transfer by the dmac
usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()
usb: gadget: f_uac2: endianness fixes.
usb: gadget: f_uac1: endianness fixes.
include: usb: audio: specify exact endiannes of descriptors
usb: gadget: udc: start_udc() can be static
usb: dwc2: gadget: On USB RESET reset device address to zero
usb: storage: return on error to avoid a null pointer dereference
usb: typec: include linux/device.h in ucsi.h
USB: cdc-acm: add device-id for quirky printer
usb: dwc3: gadget: only unmap requests from DMA if mapped
...
Linus Torvalds [Sat, 22 Jul 2017 15:53:24 +0000 (08:53 -0700)]
Merge tag 'staging-4.13-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some small staging driver fixes for reported issues for
4.13-rc2.
Also in here is a new driver, the virtualbox DRM driver. It's
stand-alone and got acks from the DRM developers to go in through this
tree. It's a new thing, but it should be fine for this point in the rc
cycle due to it being independent.
All of this has been in linux-next for a while with no reported
issues"
* tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8188eu: add TL-WN722N v2 support
staging: speakup: safely register and unregister ldisc
staging: speakup: add functions to register and unregister ldisc
staging: speakup: safely close tty
staging: sm750fb: avoid conflicting vesafb
staging: lustre: ko2iblnd: check copy_from_iter/copy_to_iter return code
staging: vboxvideo: Add vboxvideo to drivers/staging
staging: sm750fb: fixed a assignment typo
staging: rtl8188eu: memory leak in rtw_free_cmd_obj()
staging: vchiq_arm: fix error codes in probe
staging: comedi: ni_mio_common: fix AO timer off-by-one regression
Randy Dunlap [Fri, 21 Jul 2017 20:32:27 +0000 (13:32 -0700)]
MAINTAINERS: fix alphabetical ordering
Fix major alphabetic errors. No attempt to fix items that all begin
with the same word (like ARM, BROADCOM, DRM, EDAC, FREESCALE, INTEL,
OMAP, PCI, SAMSUNG, TI, USB, etc.).
(diffstat +/- is different by one line because TI KEYSTONE MULTICORE
had 2 blank lines after it.)
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 21 Jul 2017 23:26:01 +0000 (16:26 -0700)]
Merge tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client bugfixes from Anna Schumaker:
"Stable bugfix:
- Fix error reporting regression
Bugfixes:
- Fix setting filelayout ds address race
- Fix subtle access bug when using ACLs
- Fix setting mnt3_counts array size
- Fix a couple of pNFS commit races"
* tag 'nfs-for-4.13-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS/filelayout: Fix racy setting of fl->dsaddr in filelayout_check_deviceid()
NFS: Be more careful about mapping file permissions
NFS: Store the raw NFS access mask in the inode's access cache
NFSv3: Convert nfs3_proc_access() to use nfs_access_set_mask()
NFS: Refactor NFS access to kernel access mask calculation
net/sunrpc/xprt_sock: fix regression in connection error reporting.
nfs: count correct array for mnt3_counts array size
Revert commit
722f0b891198 ("pNFS: Don't send COMMITs to the DSes if...")
pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit()
NFS: Fix another COMMIT race in pNFS
NFS: Fix a COMMIT race in pNFS
mount: copy the port field into the cloned nfs_server structure.
NFS: Don't run wake_up_bit() when nobody is waiting...
nfs: add export operations
Linus Torvalds [Fri, 21 Jul 2017 23:24:22 +0000 (16:24 -0700)]
Merge branch 'overlayfs-linus' of git://git./linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"This fixes a crash with SELinux and several other old and new bugs"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: check for bad and whiteout index on lookup
ovl: do not cleanup directory and whiteout index entries
ovl: fix xattr get and set with selinux
ovl: remove unneeded check for IS_ERR()
ovl: fix origin verification of index dir
ovl: mark parent impure on ovl_link()
ovl: fix random return value on mount
Linus Torvalds [Fri, 21 Jul 2017 23:20:05 +0000 (16:20 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A small set of fixes for -rc2 - two fixes for BFQ, documentation and
code, and a removal of an unused variable in nbd. Outside of that, a
small collection of fixes from the usual crew on the nvme side"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: don't report 0-bytes in serial number
nvmet: preserve controller serial number between reboots
nvmet: Move serial number from controller to subsystem
nvmet: prefix version configfs file with attr
nvme-pci: Fix an error handling path in 'nvme_probe()'
nvme-pci: Remove nvme_setup_prps BUG_ON
nvme-pci: add another device ID with stripe quirk
nvmet-fc: fix byte swapping in nvmet_fc_ls_create_association
nvme: fix byte swapping in the streams code
nbd: kill unused ret in recv_work
bfq: dispatch request to prevent queue stalling after the request completion
bfq: fix typos in comments about B-WF2Q+ algorithm
Linus Torvalds [Fri, 21 Jul 2017 21:22:05 +0000 (14:22 -0700)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma
Pull more rdma fixes from Doug Ledford:
"As per my previous pull request, there were two drivers that each had
a rather large number of legitimate fixes still to be sent.
As it turned out, I also missed a reasonably large set of fixes from
one person across the stack that are all important fixes. All in all,
the bnxt_re, i40iw, and Dan Carpenter are 3/4 to 2/3rds of this pull
request.
There were some other random fixes that I didn't send in the last pull
request that I added to this one. This catches the rdma stack up to
the fixes from up to about the beginning of this week. Any more fixes
I'll wait and batch up later in the -rc cycle. This will give us a
good base to start with for basing a for-next branch on -rc2.
Summary:
- i40iw fixes
- bnxt_re fixes
- Dan Carpenter bugfixes across stack
- ten more random fixes, no more than two from any one person"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
RDMA/core: Initialize port_num in qp_attr
RDMA/uverbs: Fix the check for port number
IB/cma: Fix reference count leak when no ipv4 addresses are set
RDMA/iser: don't send an rkey if all data is written as immadiate-data
rxe: fix broken receive queue draining
RDMA/qedr: Prevent memory overrun in verbs' user responses
iw_cxgb4: don't use WR keys/addrs for 0 byte reads
IB/mlx4: Fix CM REQ retries in paravirt mode
IB/rdmavt: Setting of QP timeout can overflow jiffies computation
IB/core: Fix sparse warnings
RDMA/bnxt_re: Fix the value reported for local ack delay
RDMA/bnxt_re: Report MISSED_EVENTS in req_notify_cq
RDMA/bnxt_re: Fix return value of poll routine
RDMA/bnxt_re: Enable atomics only if host bios supports
RDMA/bnxt_re: Specify RDMA component when allocating stats context
RDMA/bnxt_re: Fixed the max_rd_atomic support for initiator and destination QP
RDMA/bnxt_re: Report supported value to IB stack in query_device
RDMA/bnxt_re: Do not free the ctx_tbl entry if delete GID fails
RDMA/bnxt_re: Fix WQE Size posted to HW to prevent it from throwing error
RDMA/bnxt_re: Free doorbell page index (DPI) during dealloc ucontext
...
Linus Torvalds [Fri, 21 Jul 2017 21:16:42 +0000 (14:16 -0700)]
Merge tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"A bunch of fixes for rc2: two imx regressions, vc4 fix, dma-buf fix,
some displayport mst fixes, and an amdkfd fix.
Nothing too crazy, I assume we just haven't see much rc1 testing yet"
* tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux:
drm/mst: Avoid processing partially received up/down message transactions
drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
drm/mst: Fix error handling during MST sideband message reception
drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
drm/imx: fix typo in ipu_plane_formats[]
drm/vc4: Fix VBLANK handling in crtc->enable() path
dma-buf/fence: Avoid use of uninitialised timestamp
drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec
drm/radeon: Remove initialization of shared_resources.num_mec
drm/amdkfd: Remove unused references to shared_resources.num_mec
drm/amdgpu: Fix KFD oversubscription by tracking queues correctly
Linus Torvalds [Fri, 21 Jul 2017 20:59:51 +0000 (13:59 -0700)]
Merge tag 'trace-v4.13-rc1' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Three minor updates
- Use the new GFP_RETRY_MAYFAIL to be more aggressive in allocating
memory for the ring buffer without causing OOMs
- Fix a memory leak in adding and removing instances
- Add __rcu annotation to be able to debug RCU usage of function
tracing a bit better"
* tag 'trace-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
trace: fix the errors caused by incompatible type of RCU variables
tracing: Fix kmemleak in instance_rmdir
tracing/ring_buffer: Try harder to allocate
Linus Torvalds [Fri, 21 Jul 2017 20:58:10 +0000 (13:58 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"A bunch of small fixes for x86"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
kvm: x86: hyperv: avoid livelock in oneshot SynIC timers
KVM: VMX: Fix invalid guest state detection after task-switch emulation
x86: add MULTIUSER dependency for KVM
KVM: nVMX: Disallow VM-entry in MOV-SS shadow
KVM: nVMX: track NMI blocking state separately for each VMCS
KVM: x86: masking out upper bits
Linus Torvalds [Fri, 21 Jul 2017 20:54:37 +0000 (13:54 -0700)]
Merge tag 'powerpc-4.13-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A handful of fixes, mostly for new code:
- some reworking of the new STRICT_KERNEL_RWX support to make sure we
also remove executable permission from __init memory before it's
freed.
- a fix to some recent optimisations to the hypercall entry where we
were clobbering r12, this was breaking nested guests (PR KVM).
- a fix for the recent patch to opal_configure_cores(). This could
break booting on bare metal Power8 boxes if the kernel was built
without CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG.
- .. and finally a workaround for spurious PMU interrupts on Power9
DD2.
Thanks to: Nicholas Piggin, Anton Blanchard, Balbir Singh"
* tag 'powerpc-4.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Mark __init memory no-execute when STRICT_KERNEL_RWX=y
powerpc/mm/hash: Refactor hash__mark_rodata_ro()
powerpc/mm/radix: Refactor radix__mark_rodata_ro()
powerpc/64s: Fix hypercall entry clobbering r12 input
powerpc/perf: Avoid spurious PMU interrupts after idle
powerpc/powernv: Fix boot on Power8 bare metal due to opal_configure_cores()
Linus Torvalds [Fri, 21 Jul 2017 18:20:58 +0000 (11:20 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Half of the fixes are for various build time warnings triggered by
randconfig builds. Most (but not all...) were harmless.
There's also:
- ACPI boundary condition fixes
- UV platform fixes
- defconfig updates
- an AMD K6 CPU init fix
- a %pOF printk format related preparatory change
- .. and a warning fix related to the tlb/PCID changes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/devicetree: Convert to using %pOF instead of ->full_name
x86/platform/uv/BAU: Disable BAU on single hub configurations
x86/platform/intel-mid: Fix a format string overflow warning
x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG
x86/build: Silence the build with "make -s"
x86/io: Add "memory" clobber to insb/insw/insl/outsb/outsw/outsl
x86/fpu/math-emu: Avoid bogus -Wint-in-bool-context warning
x86/fpu/math-emu: Fix possible uninitialized variable use
perf/x86: Shut up false-positive -Wmaybe-uninitialized warning
x86/defconfig: Remove stale, old Kconfig options
x86/ioapic: Pass the correct data to unmask_ioapic_irq()
x86/acpi: Prevent out of bound access caused by broken ACPI tables
x86/mm, KVM: Fix warning when !CONFIG_PREEMPT_COUNT
x86/platform/uv/BAU: Fix congested_response_us not taking effect
x86/cpu: Use indirect call to measure performance in init_amd_k6()
Linus Torvalds [Fri, 21 Jul 2017 18:18:09 +0000 (11:18 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fix from Ingo Molnar:
"A timer_irq_init() clocksource API robustness fix"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/timer-of: Handle of_irq_get_byname() result correctly
Linus Torvalds [Fri, 21 Jul 2017 18:16:12 +0000 (11:16 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"A cputime fix and code comments/organization fix to the deadline
scheduler"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Fix confusing comments about selection of top pi-waiter
sched/cputime: Don't use smp_processor_id() in preemptible context
Linus Torvalds [Fri, 21 Jul 2017 18:12:48 +0000 (11:12 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Two hw-enablement patches, two race fixes, three fixes for regressions
of semantics, plus a number of tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Add proper condition to run sched_task callbacks
perf/core: Fix locking for children siblings group read
perf/core: Fix scheduling regression of pinned groups
perf/x86/intel: Fix debug_store reset field for freq events
perf/x86/intel: Add Goldmont Plus CPU PMU support
perf/x86/intel: Enable C-state residency events for Apollo Lake
perf symbols: Accept zero as the kernel base address
Revert "perf/core: Drop kernel samples even though :u is specified"
perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target
perf evsel: State in the default event name if attr.exclude_kernel is set
perf evsel: Fix attr.exclude_kernel setting for default cycles:p
Linus Torvalds [Fri, 21 Jul 2017 18:11:23 +0000 (11:11 -0700)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking fixlet from Ingo Molnar:
"Remove an unnecessary priority adjustment in the rtmutex code"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/rtmutex: Remove unnecessary priority adjustment
Trond Myklebust [Thu, 20 Jul 2017 21:00:02 +0000 (17:00 -0400)]
NFS/filelayout: Fix racy setting of fl->dsaddr in filelayout_check_deviceid()
We must set fl->dsaddr once, and once only, even if there are multiple
processes calling filelayout_check_deviceid() for the same layout
segment.
Reported-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Linus Torvalds [Fri, 21 Jul 2017 18:07:41 +0000 (11:07 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"A resume_irq() fix, plus a number of static declaration fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/digicolor: Drop unnecessary static
irqchip/mips-cpu: Drop unnecessary static
irqchip/gic/realview: Drop unnecessary static
irqchip/mips-gic: Remove population of irq domain names
genirq/PM: Properly pretend disabled state when force resuming interrupts
Linus Torvalds [Fri, 21 Jul 2017 17:41:19 +0000 (10:41 -0700)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull core fixes from Ingo Molnar:
"A fix to WARN_ON_ONCE() done by modules, plus a MAINTAINERS update"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debug: Fix WARN_ON_ONCE() for modules
MAINTAINERS: Update the PTRACE entry
Dmitry Torokhov [Thu, 13 Jul 2017 00:14:24 +0000 (17:14 -0700)]
HID: usbhid: fix "always poll" quirk
Even though the IO for devices with "always poll" quirk is already running,
we still need to set HID_OPENED bit in usbhid->iofl so the interrupt
handler does not ignore the data coming from the device.
Reported-by: Olof Johansson <olof@lixom.net>
Tested-by: Olof Johansson <olof@lixom.net>
Fixes:
e399396a6b0 ("HID: usbhid: remove custom locking from usbhid_open...")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Trond Myklebust [Tue, 11 Jul 2017 21:54:35 +0000 (17:54 -0400)]
NFS: Be more careful about mapping file permissions
When mapping a directory, we want the MAY_WRITE permissions to reflect
whether or not we have permission to modify, add and delete the directory
entries. MAY_EXEC must map to lookup permissions.
On the other hand, for files, we want MAY_WRITE to reflect a permission
to modify and extend the file.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Trond Myklebust [Tue, 11 Jul 2017 21:54:34 +0000 (17:54 -0400)]
NFS: Store the raw NFS access mask in the inode's access cache
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Trond Myklebust [Tue, 11 Jul 2017 21:54:33 +0000 (17:54 -0400)]
NFSv3: Convert nfs3_proc_access() to use nfs_access_set_mask()
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Trond Myklebust [Tue, 11 Jul 2017 21:54:32 +0000 (17:54 -0400)]
NFS: Refactor NFS access to kernel access mask calculation
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
NeilBrown [Wed, 19 Jul 2017 04:05:01 +0000 (14:05 +1000)]
net/sunrpc/xprt_sock: fix regression in connection error reporting.
Commit
3d4762639dd3 ("tcp: remove poll() flakes when receiving
RST") in v4.12 changed the order in which ->sk_state_change()
and ->sk_error_report() are called when a socket is shut
down - sk_state_change() is now called first.
This causes xs_tcp_state_change() -> xs_sock_mark_closed() ->
xprt_disconnect_done() to wake all pending tasked with -EAGAIN.
When the ->sk_error_report() callback arrives, it is too late to
pass the error on, and it is lost.
As easy way to demonstrate the problem caused is to try to start
rpc.nfsd while rcpbind isn't running.
nfsd will attempt a tcp connection to rpcbind. A ECONNREFUSED
error is returned, but sunrpc code loses the error and keeps
retrying. If it saw the ECONNREFUSED, it would abort.
To fix this, handle the sk->sk_err in the TCP_CLOSE branch of
xs_tcp_state_change().
Fixes:
3d4762639dd3 ("tcp: remove poll() flakes when receiving RST")
Cc: stable@vger.kernel.org (v4.12)
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Eryu Guan [Tue, 18 Jul 2017 05:32:32 +0000 (13:32 +0800)]
nfs: count correct array for mnt3_counts array size
Array size of mnt3_counts should be the size of array
mnt3_procedures, not mnt_procedures, though they're same in size
right now. Found this by code inspection.
Fixes:
1c5876ddbdb4 ("sunrpc: move p_count out of struct rpc_procinfo")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Rob Herring [Tue, 18 Jul 2017 21:42:47 +0000 (16:42 -0500)]
x86/devicetree: Convert to using %pOF instead of ->full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each device node.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: devicetree@vger.kernel.org
Link: http://lkml.kernel.org/r/20170718214339.7774-7-robh@kernel.org
[ Clarify the error message while at it, as 'node' is ambiguous. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Jiri Olsa [Wed, 19 Jul 2017 07:52:47 +0000 (09:52 +0200)]
perf/x86/intel: Add proper condition to run sched_task callbacks
We have 2 functions using the same sched_task callback:
- PEBS drain for free running counters
- LBR save/store
Both of them are called from intel_pmu_sched_task() and
either of them can be unwillingly triggered when the
other one is configured to run.
Let's say there's PEBS drain configured in sched_task
callback for the event, but in the callback itself
(intel_pmu_sched_task()) we will also run the code for
LBR save/restore, which we did not ask for, but the
code in intel_pmu_sched_task() does not check for that.
This can lead to extra cycles in some perf monitoring,
like when we monitor PEBS event without LBR data.
# perf record --no-timestamp -c 10000 -e cycles:p ./perf bench sched pipe -l 1000000
(We need PEBS, non freq/non timestamp event to enable
the sched_task callback)
The perf stat of cycles and msr:write_msr for above
command before the change:
...
Performance counter stats for './perf record --no-timestamp -c 10000 -e cycles:p \
./perf bench sched pipe -l 1000000' (5 runs):
18,519,557,441 cycles:k
91,195,527 msr:write_msr
29.
334476406 seconds time elapsed
And after the change:
...
Performance counter stats for './perf record --no-timestamp -c 10000 -e cycles:p \
./perf bench sched pipe -l 1000000' (5 runs):
18,704,973,540 cycles:k
27,184,720 msr:write_msr
16.
977875900 seconds time elapsed
There's no affect on cycles:k because the sched_task happens
with events switched off, however the msr:write_msr tracepoint
counter together with almost 50% of time speedup show the
improvement.
Monitoring LBR event and having extra PEBS drain processing
in sched_task callback showed just a little speedup, because
the drain function does not do much extra work in case there
is no PEBS data.
Adding conditions to recognize the configured work that needs
to be done in the x86_pmu's sched_task callback.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170719075247.GA27506@krava
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Andrew Banman [Thu, 20 Jul 2017 22:05:51 +0000 (17:05 -0500)]
x86/platform/uv/BAU: Disable BAU on single hub configurations
The BAU confers no benefit to a UV system running with only one hub/socket.
Permanently disable the BAU driver if there are less than two hubs online
to avoid BAU overhead. We have observed failed boots on single-socket UV4
systems caused by BAU that are avoided with this patch.
Also, while at it, consolidate initialization error blocks and fix a
memory leak.
Signed-off-by: Andrew Banman <abanman@hpe.com>
Acked-by: Russ Anderson <rja@hpe.com>
Acked-by: Mike Travis <mike.travis@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: tony.ernst@hpe.com
Link: http://lkml.kernel.org/r/1500588351-78016-1-git-send-email-abanman@hpe.com
[ Minor cleanups. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Jiri Olsa [Thu, 20 Jul 2017 14:14:55 +0000 (16:14 +0200)]
perf/core: Fix locking for children siblings group read
We're missing ctx lock when iterating children siblings
within the perf_read path for group reading. Following
race and crash can happen:
User space doing read syscall on event group leader:
T1:
perf_read
lock event->ctx->mutex
perf_read_group
lock leader->child_mutex
__perf_read_group_add(child)
list_for_each_entry(sub, &leader->sibling_list, group_entry)
----> sub might be invalid at this point, because it could
get removed via perf_event_exit_task_context in T2
Child exiting and cleaning up its events:
T2:
perf_event_exit_task_context
lock ctx->mutex
list_for_each_entry_safe(child_event, next, &child_ctx->event_list,...
perf_event_exit_event(child)
lock ctx->lock
perf_group_detach(child)
unlock ctx->lock
----> child is removed from sibling_list without any sync
with T1 path above
...
free_event(child)
Before the child is removed from the leader's child_list,
(and thus is omitted from perf_read_group processing), we
need to ensure that perf_read_group touches child's
siblings under its ctx->lock.
Peter further notes:
| One additional note; this bug got exposed by commit:
|
|
ba5213ae6b88 ("perf/core: Correct event creation with PERF_FORMAT_GROUP")
|
| which made it possible to actually trigger this code-path.
Tested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
ba5213ae6b88 ("perf/core: Correct event creation with PERF_FORMAT_GROUP")
Link: http://lkml.kernel.org/r/20170720141455.2106-1-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Christoph Hellwig [Thu, 20 Jul 2017 07:54:03 +0000 (09:54 +0200)]
uuid: fix incorrect uuid_equal conversion in test_uuid_test
Fixes:
df33767d ("uuid: hoist helpers uuid_equal() and uuid_copy() from xfs")
Reported-by: kernel test robot <xiaolong.ye@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Dave Airlie [Fri, 21 Jul 2017 04:04:44 +0000 (14:04 +1000)]
Merge tag 'imx-drm-fixes-2017-07-18' of git://git.pengutronix.de/git/pza/linux into drm-fixes
imx-drm: fix parallel display regression and typo in plane format list
- Fix a regression where the parallel-display driver would not probe
anymore if no panel is specified in the device tree, since the
introduction of drm_of_find_panel_or_bridge.
- Fix a typo in the plane format list: replace a duplicate BGRA8888 format
with BGRX8888, as originally intended.
* tag 'imx-drm-fixes-2017-07-18' of git://git.pengutronix.de/git/pza/linux:
drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
drm/imx: fix typo in ipu_plane_formats[]
Dave Airlie [Fri, 21 Jul 2017 04:04:10 +0000 (14:04 +1000)]
Merge tag 'drm-misc-fixes-2017-07-20' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Core Changes:
- fence: Introduce new fence flag to signify timestamp is populated (Chris)
- mst: Avoid processing incomplete data + fix NULL dereference (Imre)
Driver Changes:
- vc4: Avoid WARN from grabbing a ref from vblank that's not on (Boris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Imre Deak <imre.deak@intel.com>
* tag 'drm-misc-fixes-2017-07-20' of git://anongit.freedesktop.org/git/drm-misc:
drm/mst: Avoid processing partially received up/down message transactions
drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
drm/mst: Fix error handling during MST sideband message reception
drm/vc4: Fix VBLANK handling in crtc->enable() path
dma-buf/fence: Avoid use of uninitialised timestamp
Dave Airlie [Fri, 21 Jul 2017 04:00:40 +0000 (14:00 +1000)]
Merge tag 'drm-amdkfd-fixes-2017-07-18' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
This is a pull request for 4.13-rc2/3. The first patch addresses a bug that
appears when doing over-subscription of queues, due to a miscalculation of
the number of available compute queues. The other three patches remove
dead code that was created from the bugfix.
* tag 'drm-amdkfd-fixes-2017-07-18' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec
drm/radeon: Remove initialization of shared_resources.num_mec
drm/amdkfd: Remove unused references to shared_resources.num_mec
drm/amdgpu: Fix KFD oversubscription by tracking queues correctly
Arnd Bergmann [Fri, 14 Jul 2017 09:25:13 +0000 (11:25 +0200)]
ide: avoid warning for timings calculation
gcc-7 warns about the result of a constant multiplication used as
a boolean:
drivers/ide/ide-timings.c: In function 'ide_timing_quantize':
drivers/ide/ide-timings.c:112:24: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context]
q->setup = EZ(t->setup * 1000, T);
This slightly rearranges the macro to simplify the code and avoid
the warning at the same time.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 20 Jul 2017 23:33:39 +0000 (16:33 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) BPF verifier signed/unsigned value tracking fix, from Daniel
Borkmann, Edward Cree, and Josef Bacik.
2) Fix memory allocation length when setting up calls to
->ndo_set_mac_address, from Cong Wang.
3) Add a new cxgb4 device ID, from Ganesh Goudar.
4) Fix FIB refcount handling, we have to set it's initial value before
the configure callback (which can bump it). From David Ahern.
5) Fix double-free in qcom/emac driver, from Timur Tabi.
6) A bunch of gcc-7 string format overflow warning fixes from Arnd
Bergmann.
7) Fix link level headroom tests in ip_do_fragment(), from Vasily
Averin.
8) Fix chunk walking in SCTP when iterating over error and parameter
headers. From Alexander Potapenko.
9) TCP BBR congestion control fixes from Neal Cardwell.
10) Fix SKB fragment handling in bcmgenet driver, from Doug Berger.
11) BPF_CGROUP_RUN_PROG_SOCK_OPS needs to check for null __sk, from Cong
Wang.
12) xmit_recursion in ppp driver needs to be per-device not per-cpu,
from Gao Feng.
13) Cannot release skb->dst in UDP if IP options processing needs it.
From Paolo Abeni.
14) Some netdev ioctl ifr_name[] NULL termination fixes. From Alexander
Levin and myself.
15) Revert some rtnetlink notification changes that are causing
regressions, from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (83 commits)
net: bonding: Fix transmit load balancing in balance-alb mode
rds: Make sure updates to cp_send_gen can be observed
net: ethernet: ti: cpsw: Push the request_irq function to the end of probe
ipv4: initialize fib_trie prior to register_netdev_notifier call.
rtnetlink: allocate more memory for dev_set_mac_address()
net: dsa: b53: Add missing ARL entries for BCM53125
bpf: more tests for mixed signed and unsigned bounds checks
bpf: add test for mixed signed and unsigned bounds checks
bpf: fix up test cases with mixed signed/unsigned bounds
bpf: allow to specify log level and reduce it for test_verifier
bpf: fix mixed signed/unsigned derived min/max value bounds
ipv6: avoid overflow of offset in ip6_find_1stfragopt
net: tehuti: don't process data if it has not been copied from userspace
Revert "rtnetlink: Do not generate notifications for CHANGEADDR event"
net: dsa: mv88e6xxx: Enable CMODE config support for 6390X
dt-binding: ptp: Add SoC compatibility strings for dte ptp clock
NET: dwmac: Make dwmac reset unconditional
net: Zero terminate ifr_name in dev_ifname().
wireless: wext: terminate ifr name coming from userspace
netfilter: fix netfilter_net_init() return
...
Kosuke Tatsukawa [Thu, 20 Jul 2017 05:20:40 +0000 (05:20 +0000)]
net: bonding: Fix transmit load balancing in balance-alb mode
balance-alb mode used to have transmit dynamic load balancing feature
enabled by default. However, transmit dynamic load balancing no longer
works in balance-alb after commit
8b426dc54cf4 ("bonding: remove
hardcoded value").
Both balance-tlb and balance-alb use the function bond_do_alb_xmit() to
send packets. This function uses the parameter tlb_dynamic_lb.
tlb_dynamic_lb used to have the default value of 1 for balance-alb, but
now the value is set to 0 except in balance-tlb.
Re-enable transmit dyanmic load balancing by initializing tlb_dynamic_lb
for balance-alb similar to balance-tlb.
Fixes:
8b426dc54cf4 ("bonding: remove hardcoded value")
Signed-off-by: Kosuke Tatsukawa <tatsu@ab.jp.nec.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Håkon Bugge [Thu, 20 Jul 2017 10:28:55 +0000 (12:28 +0200)]
rds: Make sure updates to cp_send_gen can be observed
cp->cp_send_gen is treated as a normal variable, although it may be
used by different threads.
This is fixed by using {READ,WRITE}_ONCE when it is incremented and
READ_ONCE when it is read outside the {acquire,release}_in_xmit
protection.
Normative reference from the Linux-Kernel Memory Model:
Loads from and stores to shared (but non-atomic) variables should
be protected with the READ_ONCE(), WRITE_ONCE(), and
ACCESS_ONCE().
Clause 5.1.2.4/25 in the C standard is also relevant.
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Reviewed-by: Knut Omang <knut.omang@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>