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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"A very quiet release for regmap this time around:
- Fix an endianness issue for I2C devices connected via SMBus where
we were getting two layers both trying to do endianness handling.
- Use a union to reduce the size of the regmap struct.
- A couple of smaller fixes"
* tag 'regmap-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Fix i2c word access when using SMBus access functions
regmap: Export regmap_get_val_endian
regmap: ac97: Clean up indentation
regmap: correct the description of structure element in reg_field
regmap: Move spinlock_flags into the union
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Explicit support for ina231 added to ina2xx driver.
Minor improvements, cleanup and fixes in various drivers"
* tag 'hwmon-for-linus-v3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (tmp102) add hibernation callbacks
hwmon: (ads2828) Only keep data in device data structure if needed
hwmon: (ads2828) Convert to use regmap
hwmon: (jc42) Allow negative hysteresis temperatures
hwmon: (adc128d818) Do proper sign extension
hwmon: (ad7314) Do proper sign extension
hwmon: (abx500) Fix format string warnings
hwmon: (jc42) Fix integer overflow when writing hysteresis value
hwmon: (jc42) Fix integer overflow
hwmon: (jc42) Use sign_extend32 for sign extension
hwmon: (ina2xx) Add ina231 compatible string
hwmon: (ina2xx) use DIV_ROUND_CLOSEST() to avoid rounding errors
hwmon: (ina2xx) remove an unnecessary dev_get_drvdata() result check
hwmon: (ina2xx) implement update_interval attribute for ina226
hwmon: (ina2xx) make shunt resistance configurable at run-time
hwmon: (ina2xx) don't accept shunt values greater than the calibration factor
hwmon: (ina2xx) remove a stray new line
hwmon: (ina2xx) reinitialize the chip in case it's been reset
hwmon: (nct7802) Constify struct regmap_config
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There was a bad typo in commit 43759d4f429c ("random: use an improved
fast_mix() function") and I didn't notice because it "looked right", so
I saw what I expected to see when I reviewed it.
Only months later did I look and notice it's not the Threefish-inspired
mix function that I had designed and optimized.
Mea Culpa. Each input bit still has a chance to affect each output bit,
and the fast pool is spilled *long* before it fills, so it's not a total
disaster, but it's definitely not the intended great improvement.
I'm still working on finding better rotation constants. These are good
enough, but since it's unrolled twice, it's possible to get better
mixing for free by using eight different constants rather than repeating
the same four.
Signed-off-by: George Spelvin <linux@horizon.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org # v3.16+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.rocketboards.org/linux-socfpga-next
Pull nios2 fix from Ley Foon Tan:
"This fixes incorrect behavior of some user programs"
* tag 'nios2-fixes-v3.19-final' of git://git.rocketboards.org/linux-socfpga-next:
nios2: fix unhandled signals
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Pull aio nested sleep annotation from Ben LaHaise,
* git://git.kvack.org/~bcrl/aio-fixes:
aio: annotate aio_read_event_ring for sleep patterns
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull ftrace fixes from Steven Rostedt:
"During testing Sedat Dilek hit a "suspicious RCU usage" splat that
pointed out a real bug. During suspend and resume the tlb_flush
tracepoint is called when the CPU is going offline. As the CPU has
been noted as offline, RCU is ignoring that CPU, which means that it
can not use RCU protected locks. When tracepoints are activated, they
require RCU locking, and if RCU is ignoring a CPU that runs a
tracepoint, there is a chance that the tracepoint could cause
corruption.
The solution was to change the tracepoint into a
TRACE_EVENT_CONDITION() which allows us to check a condition to
determine if the tracepoint should be called or not. If the condition
is not met, the rcu protected code will not be executed. By adding
the condition "cpu_online(smp_processor_id())", this will prevent the
RCU protected code from being executed if the CPU is marked offline.
After adding this, another bug was discovered. As RCU checks rcu
callers, if a rcu call is not done, there is no check (obviously). We
found that tracepoints could be added in RCU ignored locations and not
have lockdep complain until the tracepoint is activated. This missed
places where tracepoints were added in places they should not have
been. To fix this, code was added in 3.18 that if lockdep is enabled,
any tracepoint will still call the rcu checks even if the tracepoint
is not enabled. The bug here, is that the check does not take the
CONDITION into account. As the condition may prevent tracepoints from
being activated in RCU ignored areas (as the one patch does), we get
false positives when we enable lockdep and hit a tracepoint that the
condition prevents it from being called in a RCU ignored location.
The fix for this is to add the CONDITION to the rcu checks, even if
the tracepoint is not enabled"
* tag 'trace-fixes-v3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
x86/tlb/trace: Do not trace on CPU that is offline
tracing: Add condition check to RCU lockdep checks
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Follow other architectures for user fault handling.
Signed-off-by: Chung-Ling Tang <cltang@codesourcery.com>
Acked-by: Ley Foon Tan <lftan@altera.com>
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'regmap/topic/smbus' into regmap-next
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When taking a CPU down for suspend and resume, a tracepoint may be called
when the CPU has been designated offline. As tracepoints require RCU for
protection, they must not be called if the current CPU is offline.
Unfortunately, trace_tlb_flush() is called in this scenario as was noted
by LOCKDEP:
...
Disabling non-boot CPUs ...
intel_pstate CPU 1 exiting
===============================
smpboot: CPU 1 didn't die...
[ INFO: suspicious RCU usage. ]
3.19.0-rc7-next-20150204.1-iniza-small #1 Not tainted
-------------------------------
include/trace/events/tlb.h:35 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
RCU used illegally from offline CPU!
rcu_scheduler_active = 1, debug_locks = 0
no locks held by swapper/1/0.
stack backtrace:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.19.0-rc7-next-20150204.1-iniza-small #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. 530U3BI/530U4BI/530U4BH/530U3BI/530U4BI/530U4BH, BIOS 13XK 03/28/2013
0000000000000001 ffff88011a44fe18 ffffffff817e370d 0000000000000011
ffff88011a448290 ffff88011a44fe48 ffffffff810d6847 ffff8800c66b9600
0000000000000001 ffff88011a44c000 ffffffff81cb3900 ffff88011a44fe78
Call Trace:
[<ffffffff817e370d>] dump_stack+0x4c/0x65
[<ffffffff810d6847>] lockdep_rcu_suspicious+0xe7/0x120
[<ffffffff810b71a5>] idle_task_exit+0x205/0x2c0
[<ffffffff81054c4e>] play_dead_common+0xe/0x50
[<ffffffff81054ca5>] native_play_dead+0x15/0x140
[<ffffffff8102963f>] arch_cpu_idle_dead+0xf/0x20
[<ffffffff810cd89e>] cpu_startup_entry+0x37e/0x580
[<ffffffff81053e20>] start_secondary+0x140/0x150
intel_pstate CPU 2 exiting
...
By converting the tlb_flush tracepoint to a TRACE_EVENT_CONDITION where the
condition is cpu_online(smp_processor_id()), we can avoid calling RCU protected
code when the CPU is offline.
Link: http://lkml.kernel.org/r/CA+icZUUGiGDoL5NU8RuxKzFjoLjEKRtUWx=JB8B9a0EQv-eGzQ@mail.gmail.com
Cc: stable@vger.kernel.org # 3.17+
Fixes: d17d8f9dedb9 "x86/mm: Add tracepoints for TLB flushes"
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Suggested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Hansen <dave@sr71.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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The trace_tlb_flush() tracepoint can be called when a CPU is going offline.
When a CPU is offline, RCU is no longer watching that CPU and since the
tracepoint is protected by RCU, it must not be called. To prevent the
tlb_flush tracepoint from being called when the CPU is offline, it was
converted to a TRACE_EVENT_CONDITION where the condition checks if the
CPU is online before calling the tracepoint.
Unfortunately, this was not enough to stop lockdep from complaining about
it. Even though the RCU protected code of the tracepoint will never be
called, the condition is hidden within the tracepoint, and even though the
condition prevents RCU code from being called, the lockdep checks are
outside the tracepoint (this is to test tracepoints even when they are not
enabled).
Even though tracepoints should be checked to be RCU safe when they are not
enabled, the condition should still be considered when checking RCU.
Link: http://lkml.kernel.org/r/CA+icZUUGiGDoL5NU8RuxKzFjoLjEKRtUWx=JB8B9a0EQv-eGzQ@mail.gmail.com
Fixes: 3a630178fd5f "tracing: generate RCU warnings even when tracepoints are disabled"
Cc: stable@vger.kernel.org # 3.18+
Acked-by: Dave Hansen <dave@sr71.net>
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull one more infiniband revert from Roland Dreier:
"One more last-second RDMA change for 3.19: Yann realized that the
previous revert of new userspace ABI did not go far enough, and we're
still exposing a change that we don't want. Revert even closer to
3.18 interface to make sure we get things right in the long run"
Yann Droneaud pipes up:
"I hope this could go in v3.19 as, at this stage, we don't want to
expose any bits of this ABI in a released kernel"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
Revert "IB/core: Add support for extended query device caps"
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
"Forrest Liu tracked down a missing blk_finish_plug in the btrfs
logging code. This isn't a new bug, and it's hard to hit. But, it's
safe enough for inclusion now, and in my for-linus branch"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: add missing blk_finish_plug in btrfs_sync_log()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and x86 fix from Ingo Molnar:
"A CLOCK_TAI early expiry fix and an x86 microcode driver oops fix"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Fix incorrect tai offset calculation for non high-res timer systems
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode: Return error from driver init code when loader is disabled
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc fixes"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Fix deadline parameter modification handling
sched/wait: Remove might_sleep() from wait_event_cmd()
sched: Fix crash if cpuset_cpumask_can_shrink() is passed an empty cpumask
sched/fair: Avoid using uninitialized variable in preferred_group_nid()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core kernel fixes from Ingo Molnar:
"Two liblockdep fixes and a CPU hotplug race fix"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/liblockdep: don't include host headers
tools/liblockdep: ignore generated .so file
smpboot: Add missing get_online_cpus() in smpboot_register_percpu_thread()
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Hopefully the final pull request for 3.19: this ended up with a
slightly higher volume than wished, but I put them all as they are
either stable or 3.19 regression fixes.
Most of commits are from ASoC, and have been stewed for a while in
linux-next. The only change in the common code is the regression
fixes for ASoC AC97 stuff wrt device registrations. The rest are
device-specific, mostly small fixes in various ASoC drivers and ak411x
on ice1724 boards"
* tag 'sound-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: Intel: fix sst firmware path for cht-bsw-rt5672
ARM: dts: Fix I2S1, I2S2 compatible for exynos4 SoCs
ASoC: sgtl5000: add delay before first I2C access
MAINTAINERS: ASoC: add maintainer for Intel BDW/HSW ASoC driver
ASoC: atmel_ssc_dai: fix the setting for DSP mode
ASoC: sgtl5000: Use shift mask when setting codec mode
ASoC: tlv320aic3x: Fix data delay configuration
ALSA: ak411x: Fix stall in work callback
ASoC: Intel: Used lock version to update shim registers
ASoC: wm8731: init mutex in i2c init path
ASoC: atmel_ssc_dai: fix start event for I2S mode
ASoC: rt5640: Add RT5642 ACPI ID for Intel Baytrail
ASoC: wm97xx: Reset AC'97 device before registering it
ASoC: Add support for allocating AC'97 device before registering it
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Merge misc fixes from Andrew Morton:
"7 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/debug_pagealloc: fix build failure on ppc and some other archs
nilfs2: fix deadlock of segment constructor over I_SYNC flag
MAINTAINERS: remove SUPERH website
memcg, shmem: fix shmem migration to use lrucare
mm: export "high_memory" symbol on !MMU
.mailmap: update Konstantin Khlebnikov's email address
mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range
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Pull MIPS fixes from Ralf Baechle:
"The pending MIPS fixes for 3.19. All across the field and nothing
particularly severe or dramatic"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (23 commits)
IRQCHIP: mips-gic: Avoid rerouting timer IRQs for smp-cmp
MIPS: Fix syscall_get_nr for the syscall exit tracing.
MIPS: elf2ecoff: Ignore PT_MIPS_ABIFLAGS program headers.
MIPS: elf2ecoff: Rewrite main processing loop to switch.
MIPS: fork: Fix MSA/FPU/DSP context duplication race
MIPS: Fix C0_Pagegrain[IEC] support.
MIPS: traps: Fix inline asm ctc1 missing .set hardfloat
MIPS: mipsregs.h: Add write_32bit_cp1_register()
MIPS: Fix kernel lockup or crash after CPU offline/online
MIPS: OCTEON: fix kernel crash when offlining a CPU
MIPS: ARC: Fix build error.
MIPS: IRQ: Fix disable_irq on CPU IRQs
MIPS: smp-mt,smp-cmp: Enable all HW IRQs on secondary CPUs
MIPS: Fix restart of indirect syscalls
MIPS: ELF: fix loading o32 binaries on 64-bit kernels
MIPS: mips-cm: Fix sparse warnings
MIPS: Kconfig: Fix recursive dependency.
MIPS: Compat: Fix build error if CONFIG_MIPS32_COMPAT but no compat ABI.
MIPS: JZ4740: Fixup #include's (sparse)
MIPS: Wire up execveat(2).
...
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While commit 7e36ef8205ff ("IB/core: Temporarily disable
ex_query_device uverb") is correct as it makes the extended
QUERY_DEVICE uverb (which came as part of commit 5a77abf9a97a
("IB/core: Add support for extended query device caps") and commit
860f10a799c8 ("IB/core: Add flags for on demand paging support")) not
available to userspace, it doesn't address the initial issue regarding
ib_copy_to_udata() [1][2].
Additionally, further discussions around this new uverb seems to
conclude it would require a different data structure than the one
currently described in <rdma/ib_user_verbs.h> [3].
Both of these issues require a revert of the changes, so this patch
partially reverts commit 8cdd312cfed7 ("IB/mlx5: Implement the ODP
capability query verb") and commit 860f10a799c8 ("IB/core: Add flags
for on demand paging support") and fully reverts commit 5a77abf9a97a
("IB/core: Add support for extended query device caps").
[1] "Re: [PATCH v3 06/17] IB/core: Add support for extended query device caps"
http://mid.gmane.org/1418733236.2779.26.camel@opteya.com
[2] "Re: [PATCH] IB/core: Temporarily disable ex_query_device uverb"
http://mid.gmane.org/1423067503.3030.83.camel@opteya.com
[3] "RE: [PATCH v1 1/5] IB/uverbs: ex_query_device: answer must not depend on request's comp_mask"
http://mid.gmane.org/2807E5FD2F6FDA4886F6618EAC48510E0CC12C30@CRSMSX101.amr.corp.intel.com
Cc: Eli Cohen <eli@mellanox.com>
Cc: Haggai Eran <haggaie@mellanox.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Kim Phillips reported following build failure.
LD init/built-in.o
mm/built-in.o: In function `free_pages_prepare':
mm/page_alloc.c:770: undefined reference to `.kernel_map_pages'
mm/built-in.o: In function `prep_new_page':
mm/page_alloc.c:933: undefined reference to `.kernel_map_pages'
mm/built-in.o: In function `map_pages':
mm/compaction.c:61: undefined reference to `.kernel_map_pages'
make: *** [vmlinux] Error 1
Reason for this problem is that commit 031bc5743f15
("mm/debug-pagealloc: make debug-pagealloc boottime configurable")
forgot to remove the old declaration of kernel_map_pages() for some
architectures. This patch removes them to fix build failure.
Reported-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: David Miller <davem@davemloft.net>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Nilfs2 eventually hangs in a stress test with fsstress program. This
issue was caused by the following deadlock over I_SYNC flag between
nilfs_segctor_thread() and writeback_sb_inodes():
nilfs_segctor_thread()
nilfs_segctor_thread_construct()
nilfs_segctor_unlock()
nilfs_dispose_list()
iput()
iput_final()
evict()
inode_wait_for_writeback() * wait for I_SYNC flag
writeback_sb_inodes()
* set I_SYNC flag on inode->i_state
__writeback_single_inode()
do_writepages()
nilfs_writepages()
nilfs_construct_dsync_segment()
nilfs_segctor_sync()
* wait for completion of segment constructor
inode_sync_complete()
* clear I_SYNC flag after __writeback_single_inode() completed
writeback_sb_inodes() calls do_writepages() for dirty inodes after
setting I_SYNC flag on inode->i_state. do_writepages() in turn calls
nilfs_writepages(), which can run segment constructor and wait for its
completion. On the other hand, segment constructor calls iput(), which
can call evict() and wait for the I_SYNC flag on
inode_wait_for_writeback().
Since segment constructor doesn't know when I_SYNC will be set, it
cannot know whether iput() will block or not unless inode->i_nlink has a
non-zero count. We can prevent evict() from being called in iput() by
implementing sop->drop_inode(), but it's not preferable to leave inodes
with i_nlink == 0 for long periods because it even defers file
truncation and inode deallocation. So, this instead resolves the
deadlock by calling iput() asynchronously with a workqueue for inodes
with i_nlink == 0.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The mentioned website only displays information about buying and selling
domains.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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It has been reported that 965GM might trigger
VM_BUG_ON_PAGE(!lrucare && PageLRU(oldpage), oldpage)
in mem_cgroup_migrate when shmem wants to replace a swap cache page
because of shmem_should_replace_page (the page is allocated from an
inappropriate zone). shmem_replace_page expects that the oldpage is not
on LRU list and calls mem_cgroup_migrate without lrucare. This is
obviously incorrect because swapcache pages might be on the LRU list
(e.g. swapin readahead page).
Fix this by enabling lrucare for the migration in shmem_replace_page.
Also clarify that lrucare should be used even if one of the pages might
be on LRU list.
The BUG_ON will trigger only when CONFIG_DEBUG_VM is enabled but even
without that the migration code might leave the old page on an
inappropriate memcg' LRU which is not that critical because the page
would get removed with its last reference but it is still confusing.
Fixes: 0a31bc97c80c ("mm: memcontrol: rewrite uncharge API")
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Dave Airlie <airlied@gmail.com>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org> [3.17+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels, but
only one of them is exported, which leads to module build errors in
drivers that work fine built-in:
ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
ERROR: "high_memory" [crypto/cts.ko] undefined!
This exports the symbol to get these to work on NOMMU as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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get_maintainer.pl returns k.khlebnikov@samsung.com via git history, for
which emails get rejected:
RCPT TO:<k.khlebnikov@samsung.com>
550 5.1.1 Recipient address rejected: User unknown
Use his other address that passes vger's mxverify:
RCPT TO:<koct9i@gmail.com>
250 2.1.5 OK ir10si13843754pbc.62 - gsmtp
and add his old email address in the wrong email address field.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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walk_page_range() silently skips vma having VM_PFNMAP set, which leads
to undesirable behaviour at client end (who called walk_page_range).
Userspace applications get the wrong data, so the effect is like just
confusing users (if the applications just display the data) or sometimes
killing the processes (if the applications do something with
misunderstanding virtual addresses due to the wrong data.)
For example for pagemap_read, when no callbacks are called against
VM_PFNMAP vma, pagemap_read may prepare pagemap data for next virtual
address range at wrong index.
Eventually userspace may get wrong pagemap data for a task.
Corresponding to a VM_PFNMAP marked vma region, kernel may report
mappings from subsequent vma regions. User space in turn may account
more pages (than really are) to the task.
In my case I was using procmem, procrack (Android utility) which uses
pagemap interface to account RSS pages of a task. Due to this bug it
was giving a wrong picture for vmas (with VM_PFNMAP set).
Fixes: a9ff785e4437 ("mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas")
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: <stable@vger.kernel.org> [3.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: AC'97 fixes
These are rather too large for this late in the release cycle but
they're clear, well understood and have been tested to fix a regression
which was introduced for v3.19. The details are all in Lars' changelog
and they've been cooking in -next for a while, to a large extent out
of conservatism about the size.
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fix for Intel firmware name
Another one liner that arrived after the earlier pull request. There's
a trivial conflict with my -next branch, I'll send a pull request with
that resolution and some other new stuff before Monday.
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.19
A few last minute fixes for v3.19, all driver specific. None of them
stand out particularly - it's all the standard people who are affected
will care stuff.
The Samsung fix is a DT only fix for the audio controller, it's being
merged via the ASoC tree due to process messups (the submitter sent it
at the end of a tangentally related series rather than separately to the
ARM folks) in order to make sure that it gets to people sooner.
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All sst firmware is provided under the intel directory of the linux-firmware
tree. By default this directory structure is kept when installing on a target
system. Change the path to expect a default linux-firmware installation.
Signed-off-by: Kevin Strasser <kevin.strasser@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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I2S1, I2S2 on Exynos4 SoC series have limited functionality compared
to I2S0, "samsung,s3c6410-i2s" compatible should be used for them.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
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Pull networking fixes from David Miller:
1) Stretch ACKs can kill performance with Reno and CUBIC congestion
control, largely due to LRO and GRO. Fix from Neal Cardwell.
2) Fix userland breakage because we accidently emit zero length netlink
messages from the bridging code. From Roopa Prabhu.
3) Carry handling in generic csum_tcpudp_nofold is broken, fix from
Karl Beldan.
4) Remove bogus dev_set_net() calls from CAIF driver, from Nicolas
Dichtel.
5) Make sure PPP deflation never returns a length greater then the
output buffer, otherwise we overflow and trigger skb_over_panic().
Fix from Florian Westphal.
6) COSA driver needs VIRT_TO_BUS Kconfig dependencies, from Arnd
Bergmann.
7) Don't increase route cached MTU on datagram too big ICMPs. From Li
Wei.
8) Fix error path leaks in nf_tables, from Pablo Neira Ayuso.
9) Fix bitmask handling regression in netlink that broke things like
acpi userland tools. From Pablo Neira Ayuso.
10) Wrong header pointer passed to param_type2af() in SCTP code, from
Saran Maruti Ramanara.
11) Stacked vlans not handled correctly by vlan_get_protocol(), from
Toshiaki Makita.
12) Add missing DMA memory barrier to xgene driver, from Iyappan
Subramanian.
13) Fix crash in rate estimators, from Eric Dumazet.
14) We've been adding various workarounds, one after another, for the
change which added the per-net tcp_sock. It was meant to reduce
socket contention but added lots of problems.
Reduce this instead to a proper per-cpu socket and that rids us of
all the daemons.
From Eric Dumazet.
15) Fix memory corruption and OOPS in mlx4 driver, from Jack
Morgenstein.
16) When we disabled UFO in the virtio_net device, it introduces some
serious performance regressions. The orignal problem was IPV6
fragment ID generation, so fix that properly instead. From Vlad
Yasevich.
17) sr9700 driver build breaks on xtensa because it defines macros with
the same name as those used by the arch code. Use more unique
names. From Chen Gang.
18) Fix endianness in new virio 1.0 mode of the vhost net driver, from
Michael S Tsirkin.
19) Several sysctls were setting the maxlen attribute incorrectly, from
Sasha Levin.
20) Don't accept an FQ scheduler quantum of zero, that leads to crashes.
From Kenneth Klette Jonassen.
21) Fix dumping of non-existing actions in the packet scheduler
classifier. From Ignacy Gawędzki.
22) Return the write work_done value when doing TX work in the qlcnic
driver.
23) ip6gre_err accesses the info field with the wrong endianness, from
Sabrina Dubroca.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (54 commits)
sit: fix some __be16/u16 mismatches
ipv6: fix sparse errors in ip6_make_flowlabel()
net: remove some sparse warnings
flow_keys: n_proto type should be __be16
ip6_gre: fix endianness errors in ip6gre_err
qlcnic: Fix NAPI poll routine for Tx completion
amd-xgbe: Set RSS enablement based on hardware features
amd-xgbe: Adjust for zero-based traffic class count
cls_api.c: Fix dumping of non-existing actions' stats.
pkt_sched: fq: avoid hang when quantum 0
net: rds: use correct size for max unacked packets and bytes
vhost/net: fix up num_buffers endian-ness
gianfar: correct the bad expression while writing bit-pattern
net: usb: sr9700: Use 'SR_' prefix for the common register macros
Revert "drivers/net: Disable UFO through virtio"
Revert "drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets"
ipv6: Select fragment id during UFO segmentation if not set.
xen-netback: stop the guest rx thread after a fatal error
net/mlx4_core: Fix kernel Oops (mem corruption) when working with more than 80 VFs
isdn: off by one in connect_res()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This patch set is fixing two serious problems which have turned up
late in the release cycle.
The first fixes a problem with 4k sector disks where the transfer
length (amount of data sent to the disk) was getting increased every
time the disk was revalidated leading to potential for overflows.
The other is a regression oops fix for some of our last merge window
code"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
sd: Fix max transfer length for 4k disks
scsi: fix device handler detach oops
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Pull drm fixes from Dave Airlie:
"Radeon and amdkfd fixes.
Radeon ones mostly for oops in some test/benchmark functions since
fencing changes, and one regression fix for old GPUs,
There is one cirrus regression fix, the 32bpp broke userspace, so this
hides it behind a module option for the few users who care.
I'm off for a few days, so this is probably the final pull I have, if
I see fixes from Intel I'll forward the pull as I should have email"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/cirrus: Limit modes depending on bpp option
drm/radeon: fix the crash in test functions
drm/radeon: fix the crash in benchmark functions
drm/radeon: properly set vm fragment size for TN/RL
drm/radeon: don't init gpuvm if accel is disabled (v3)
drm/radeon: fix PLLs on RS880 and older v2
drm/amdkfd: Don't create BUG due to incorrect user parameter
drm/amdkfd: max num of queues can't be 0
drm/amdkfd: Fix bug in accounting of queues
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A couple of driver specific fixes:
- Disable DMA mode for i.MX6DL chips due to a hardware bug.
- Don't use devm_kzalloc() outside of bind/unbind paths in the
fsl-dspi driver, fixing memory leaks"
* tag 'spi-v3.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: imx: use pio mode for i.mx6dl
spi: spi-fsl-dspi: Remove usage of devm_kzalloc
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI power management fix from Rafael Wysocki:
"This is a revert of an ACPI Low-power Subsystem (LPSS) driver change
that was supposed to improve power management of the LPSS DMA
controller, but introduced more serious problems.
Since fixing them turns out to be non-trivial, it is better to revert
the commit in question at this point and try to fix the original issue
differently in the next cycle"
* tag 'pm+acpi-3.19-fin' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA"
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Enumeration
- Scan all device numbers on NEC as well as Stratus (Charlotte Richardson)
Resource management
- Handle read-only BARs on AMD CS553x devices (Myron Stowe)
Synopsys DesignWare
- Reject MSI-X IRQs (Lucas Stach)"
* tag 'pci-v3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Handle read-only BARs on AMD CS553x devices
PCI: Add NEC variants to Stratus ftServer PCIe DMI check
PCI: designware: Reject MSI-X IRQs
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Commit e9de688dac65 ("irqchip: mips-gic: Support local interrupts")
changed the GIC irqchip driver so that all local interrupts were routed
to the same CPU pin used for external interrupts. Unfortunately this
causes a regression when smp-cmp is used. The CPUs are started by the
bootloader and put in a timer based waiting poll loop, but when their
timer interrupts are rerouted to a different IRQ pin which is not
unmasked they never wake up.
Since smp-cmp support is deprecated and everybody who was using it
should be switching to smp-cps which brings up the secondary CPUs
without bootloader assistance, I've gone for the simple fix which can be
easily removed once smp-cmp is removed, rather than a fully generic fix.
In __gic_init() the local GIC_VPE_TIMER_MAP register is read to find the
boot-time routing of the local timer interrupt, and a chained handler is
added to that CPU pin as well as the normal one.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Fixes: e9de688dac65 ("irqchip: mips-gic: Support local interrupts")
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Qais Yousef <qais.yousef@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Patchwork: https://patchwork.linux-mips.org/patch/9081/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Fixes following sparse warnings :
net/ipv6/sit.c:1509:32: warning: incorrect type in assignment (different base types)
net/ipv6/sit.c:1509:32: expected restricted __be16 [usertype] sport
net/ipv6/sit.c:1509:32: got unsigned short
net/ipv6/sit.c:1514:32: warning: incorrect type in assignment (different base types)
net/ipv6/sit.c:1514:32: expected restricted __be16 [usertype] dport
net/ipv6/sit.c:1514:32: got unsigned short
net/ipv6/sit.c:1711:38: warning: incorrect type in argument 3 (different base types)
net/ipv6/sit.c:1711:38: expected unsigned short [unsigned] [usertype] value
net/ipv6/sit.c:1711:38: got restricted __be16 [usertype] sport
net/ipv6/sit.c:1713:38: warning: incorrect type in argument 3 (different base types)
net/ipv6/sit.c:1713:38: expected unsigned short [unsigned] [usertype] value
net/ipv6/sit.c:1713:38: got restricted __be16 [usertype] dport
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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include/net/ipv6.h:713:22: warning: incorrect type in assignment (different base types)
include/net/ipv6.h:713:22: expected restricted __be32 [usertype] hash
include/net/ipv6.h:713:22: got unsigned int
include/net/ipv6.h:719:25: warning: restricted __be32 degrades to integer
include/net/ipv6.h:719:22: warning: invalid assignment: ^=
include/net/ipv6.h:719:22: left side has type restricted __be32
include/net/ipv6.h:719:22: right side has type unsigned int
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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netdev_adjacent_add_links() and netdev_adjacent_del_links()
are static.
queue->qdisc has __rcu annotation, need to use RCU_INIT_POINTER()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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