commit da861e18ec ("x86, vdso: Get rid of the fake section mechanism")
left this file behind; nothing is using it anymore.
Signed-off-by: Jann Horn <jannh@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: luto@amacapital.net
Link: http://lkml.kernel.org/r/20180504175935.104085-1-jannh@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
> kernel/sched/core.c:6921 cpu_weight_nice_write_s64() warn: potential spectre issue 'sched_prio_to_weight'
Userspace controls @nice, so sanitize the value before using it to
index an array.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Gaurav reported a perceived problem with TASK_PARKED, which turned out
to be a broken wait-loop pattern in __kthread_parkme(), but the
reported issue can (and does) in fact happen for states that do not do
condition based sleeps.
When the 'current->state = TASK_RUNNING' store of a previous
(concurrent) try_to_wake_up() collides with the setting of a 'special'
sleep state, we can loose the sleep state.
Normal condition based wait-loops are immune to this problem, but for
sleep states that are not condition based are subject to this problem.
There already is a fix for TASK_DEAD. Abstract that and also apply it
to TASK_STOPPED and TASK_TRACED, both of which are also without
condition based wait-loop.
Reported-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Even with the wait-loop fixed, there is a further issue with
kthread_parkme(). Upon hotplug, when we do takedown_cpu(),
smpboot_park_threads() can return before all those threads are in fact
blocked, due to the placement of the complete() in __kthread_parkme().
When that happens, sched_cpu_dying() -> migrate_tasks() can end up
migrating such a still runnable task onto another CPU.
Normally the task will have hit schedule() and gone to sleep by the
time we do kthread_unpark(), which will then do __kthread_bind() to
re-bind the task to the correct CPU.
However, when we loose the initial TASK_PARKED store to the concurrent
wakeup issue described previously, do the complete(), get migrated, it
is possible to either:
- observe kthread_unpark()'s clearing of SHOULD_PARK and terminate
the park and set TASK_RUNNING, or
- __kthread_bind()'s wait_task_inactive() to observe the competing
TASK_RUNNING store.
Either way the WARN() in __kthread_bind() will trigger and fail to
correctly set the CPU affinity.
Fix this by only issuing the complete() when the kthread has scheduled
out. This does away with all the icky 'still running' nonsense.
The alternative is to promote TASK_PARKED to a special state, this
guarantees wait_task_inactive() cannot observe a 'stale' TASK_RUNNING
and we'll end up doing the right thing, but this preserves the whole
icky business of potentially migating the still runnable thing.
Reported-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Gaurav reported a problem with __kthread_parkme() where a concurrent
try_to_wake_up() could result in competing stores to ->state which,
when the TASK_PARKED store got lost bad things would happen.
The comment near set_current_state() actually mentions this competing
store, but only mentions the case against TASK_RUNNING. This same
store, with different timing, can happen against a subsequent !RUNNING
store.
This normally is not a problem, because as per that same comment, the
!RUNNING state store is inside a condition based wait-loop:
for (;;) {
set_current_state(TASK_UNINTERRUPTIBLE);
if (!need_sleep)
break;
schedule();
}
__set_current_state(TASK_RUNNING);
If we loose the (first) TASK_UNINTERRUPTIBLE store to a previous
(concurrent) wakeup, the schedule() will NO-OP and we'll go around the
loop once more.
The problem here is that the TASK_PARKED store is not inside the
KTHREAD_SHOULD_PARK condition wait-loop.
There is a genuine issue with sleeps that do not have a condition;
this is addressed in a subsequent patch.
Reported-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
With commit:
31e77c93e4 ("sched/fair: Update blocked load when newly idle")
... we release the rq->lock when updating blocked load of idle CPUs.
This opens a time window during which another CPU can add a task to this
CPU's cfs_rq.
The check for newly added task of idle_balance() is not in the common path.
Move the out label to include this check.
Reported-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 31e77c93e4 ("sched/fair: Update blocked load when newly idle")
Link: http://lkml.kernel.org/r/20180426103133.GA6953@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Matt reported the following deadlock:
CPU0 CPU1
schedule(.prev=migrate/0) <fault>
pick_next_task() ...
idle_balance() migrate_swap()
active_balance() stop_two_cpus()
spin_lock(stopper0->lock)
spin_lock(stopper1->lock)
ttwu(migrate/0)
smp_cond_load_acquire() -- waits for schedule()
stop_one_cpu(1)
spin_lock(stopper1->lock) -- waits for stopper lock
Fix this deadlock by taking the wakeups out from under stopper->lock.
This allows the active_balance() to queue the stop work and finish the
context switch, which in turn allows the wakeup from migrate_swap() to
observe the context and complete the wakeup.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reported-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20180420095005.GH4064@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- Tracepoints should not give warning on OOM failures
- Use special field for function pointer in trace event
- Fix igrab issues in uprobes
- Fixes to the new histogram triggers
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Merge tag 'trace-v4.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Various fixes in tracing:
- Tracepoints should not give warning on OOM failures
- Use special field for function pointer in trace event
- Fix igrab issues in uprobes
- Fixes to the new histogram triggers"
* tag 'trace-v4.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracepoint: Do not warn on ENOMEM
tracing: Add field modifier parsing hist error for hist triggers
tracing: Add field parsing hist error for hist triggers
tracing: Restore proper field flag printing when displaying triggers
tracing: initcall: Ordered comparison of function pointers
tracing: Remove igrab() iput() call from uprobes.c
tracing: Fix bad use of igrab in trace_uprobe.c
Pull input updates from Dmitry Torokhov:
"Just a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: atmel_mxt_ts - add missing compatible strings to OF device table
Input: atmel_mxt_ts - fix the firmware update
Input: atmel_mxt_ts - add touchpad button mapping for Samsung Chromebook Pro
MAINTAINERS: Rakesh Iyer can't be reached anymore
Input: hideep_ts - fix a typo in Kconfig
Input: alps - fix reporting pressure of v3 trackstick
Input: leds - fix out of bound access
Input: synaptics-rmi4 - fix an unchecked out of memory error path
Three small bug fixes: an illegally overlapping memcmp in target code,
a potential infinite loop in isci under certain rare phy conditions
and an ATA queue depth (performance) correction for storvsc.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three small bug fixes: an illegally overlapping memcmp in target code,
a potential infinite loop in isci under certain rare phy conditions
and an ATA queue depth (performance) correction for storvsc"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: target: Fix fortify_panic kernel exception
scsi: isci: Fix infinite loop in while loop
scsi: storvsc: Set up correct queue depth values for IDE devices
Pull hexagon fixes from Richard Kuo:
"Some small fixes for module compilation"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
hexagon: export csum_partial_copy_nocheck
hexagon: add memset_io() helper
Commit af503716ac ("i2c: core: report OF style module alias for devices
registered via OF") fixed how the I2C core reports the module alias when
devices are registered via OF.
But the atmel_mxt_ts driver only has an "atmel,maxtouch" compatible in its
OF device ID table, so if a Device Tree is using a different one, autoload
won't be working for the module (the matching works because the I2C device
ID table is used as a fallback).
So add compatible strings for each of the entries in the I2C device table.
Fixes: af503716ac ("i2c: core: report OF style module alias for devices registered via OF")
Reported-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
[dtor: document which compatibles are deprecated and should not be used]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is needed to link ipv6 as a loadable module, which in turn happens
in allmodconfig.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
We already have memcpy_toio(), but not memset_io(), so let's
add the obvious version to allow building an allmodconfig kernel
without errors like
drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_move_memcpy':
drivers/gpu/drm/ttm/ttm_bo_util.c:390:3: error: implicit declaration of function 'memset_io' [-Werror=implicit-function-declaration]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
The automatic update mechanism will trigger an update if the
info block CRCs are different between maxtouch configuration
file (maxtouch.cfg) and chip.
The driver compared the CRCs without retrieving the chip CRC,
resulting always in a failure and firmware flashing action
triggered. Fix this issue by retrieving the chip info block
CRC before the check.
Note that this solution has the benefit that by reading the
information block and the object table into a contiguous region
of memory, we can verify the checksum at probe time. This means
we make sure that we are indeed talking to a chip that supports
object protocol correctly.
Using this patch on a kevin chromebook, the touchscreen and
touchpad drivers are able to match the CRC:
atmel_mxt_ts 3-004b: Family: 164 Variant: 14 Firmware V2.3.AA Objects: 40
atmel_mxt_ts 5-004a: Family: 164 Variant: 17 Firmware V2.0.AA Objects: 31
atmel_mxt_ts 3-004b: Resetting device
atmel_mxt_ts 5-004a: Resetting device
atmel_mxt_ts 3-004b: Config CRC 0x573E89: OK
atmel_mxt_ts 3-004b: Touchscreen size X4095Y2729
input: Atmel maXTouch Touchscreen as /devices/platform/ff130000.i2c/i2c-3/3-004b/input/input5
atmel_mxt_ts 5-004a: Config CRC 0x0AF6BA: OK
atmel_mxt_ts 5-004a: Touchscreen size X1920Y1080
input: Atmel maXTouch Touchpad as /devices/platform/ff140000.i2c/i2c-5/5-004a/input/input6
Signed-off-by: Nick Dyer <nick.dyer@shmanahar.org>
Acked-by: Benson Leung <bleung@chromium.org>
[Ezequiel: minor patch massage]
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This patch adds the correct platform data information for the Caroline
Chromebook, so that the mouse button does not get stuck in pressed state
after the first click.
The Samus button keymap and platform data definition are the correct
ones for Caroline, so they have been reused here.
Signed-off-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Signed-off-by: Salvatore Bellizzi <lkml@seppia.net>
Tested-by: Guenter Roeck <groeck@chromium.org>
Cc: stable@vger.kernel.org
[dtor: adjusted vendor spelling to match shipping firmware]
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- Enhance inode fork verifiers to prevent loading of corrupted metadata.
- Fix a crash when we try to convert extents format inodes to btree
format, we run out of space, but forget to revert the in-core state
changes.
- Fix file size checks when doing INSERT_RANGE that could cause files
to end up negative size if there previously was an extent mapped at
s_maxbytes.
- Fix a bug when doing a remove-then-add ATTR_REPLACE xattr update where
we forget to clear ATTR_REPLACE after the remove, which causes the
attr to be lost and the fs to shut down due to (what it thinks is)
inconsistent in-core state.
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Merge tag 'xfs-4.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are a few more bug fixes for xfs for 4.17-rc4. Most of them are
fixes for bad behavior.
This series has been run through a full xfstests run during LSF and
through a quick xfstests run against this morning's master, with no
major failures reported.
Summary:
- Enhance inode fork verifiers to prevent loading of corrupted
metadata.
- Fix a crash when we try to convert extents format inodes to btree
format, we run out of space, but forget to revert the in-core state
changes.
- Fix file size checks when doing INSERT_RANGE that could cause files
to end up negative size if there previously was an extent mapped at
s_maxbytes.
- Fix a bug when doing a remove-then-add ATTR_REPLACE xattr update
where we forget to clear ATTR_REPLACE after the remove, which
causes the attr to be lost and the fs to shut down due to (what it
thinks is) inconsistent in-core state"
* tag 'xfs-4.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE
xfs: prevent creating negative-sized file via INSERT_RANGE
xfs: set format back to extents if xfs_bmap_extents_to_btree
xfs: enhance dinode verifier
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Merge tag 'errseq-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull errseq infrastructure fix from Jeff Layton:
"The PostgreSQL developers recently had a spirited discussion about the
writeback error handling in Linux, and reached out to us about a
behavoir change to the code that bit them when the errseq_t changes
were merged.
When we changed to using errseq_t for tracking writeback errors, we
lost the ability for an application to see a writeback error that
occurred before the open on which the fsync was issued. This was
problematic for PostgreSQL which offloads fsync calls to a completely
separate process from the DB writers.
This patch restores that ability. If the errseq_t value in the inode
does not have the SEEN flag set, then we just return 0 for the sample.
That ensures that any recorded error is always delivered at least
once.
Note that we might still lose the error if the inode gets evicted from
the cache before anything can reopen it, but that was the case before
errseq_t was merged. At LSF/MM we had some discussion about keeping
inodes with unreported writeback errors around in the cache for longer
(possibly indefinitely), but that's really a separate problem"
* tag 'errseq-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
errseq: Always report a writeback error once
- Fixup license text for oradax driver, from Rob Gardner.
- Release device object with put_device() instead of straight kfree(),
from Arvind Yadav.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: vio: use put_device() instead of kfree()
sparc64: Fix mistake in oradax license text
Never directly free @dev after calling device_register(), even
if it returned an error. Always use put_device() to give up the
reference initialized.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The license text in both oradax files mistakenly specifies "version 3" of
the GNU General Public License. This is corrected to specify "version 2".
Signed-off-by: Rob Gardner <rob.gardner@oracle.com>
Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull x86 fixes from Thomas Gleixner:
"Another set of x86 related updates:
- Fix the long broken x32 version of the IPC user space headers which
was noticed by Arnd Bergman in course of his ongoing y2038 work.
GLIBC seems to have non broken private copies of these headers so
this went unnoticed.
- Two microcode fixlets which address some more fallout from the
recent modifications in that area:
- Unconditionally save the microcode patch, which was only saved
when CPU_HOTPLUG was enabled causing failures in the late
loading mechanism
- Make the later loader synchronization finally work under all
circumstances. It was exiting early and causing timeout failures
due to a missing synchronization point.
- Do not use mwait_play_dead() on AMD systems to prevent excessive
power consumption as the CPU cannot go into deep power states from
there.
- Address an annoying sparse warning due to lost type qualifiers of
the vmemmap and vmalloc base address constants.
- Prevent reserving crash kernel region on Xen PV as this leads to
the wrong perception that crash kernels actually work there which
is not the case. Xen PV has its own crash mechanism handled by the
hypervisor.
- Add missing TLB cpuid values to the table to make the printout on
certain machines correct.
- Enumerate the new CLDEMOTE instruction
- Fix an incorrect SPDX identifier
- Remove stale macros"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ipc: Fix x32 version of shmid64_ds and msqid64_ds
x86/setup: Do not reserve a crash kernel region if booted on Xen PV
x86/cpu/intel: Add missing TLB cpuid values
x86/smpboot: Don't use mwait_play_dead() on AMD systems
x86/mm: Make vmemmap and vmalloc base address constants unsigned long
x86/vector: Remove the unused macro FPU_IRQ
x86/vector: Remove the macro VECTOR_OFFSET_START
x86/cpufeatures: Enumerate cldemote instruction
x86/microcode: Do not exit early from __reload_late()
x86/microcode/intel: Save microcode patch unconditionally
x86/jailhouse: Fix incorrect SPDX identifier
Pull x86 pti fixes from Thomas Gleixner:
"A set of updates for the x86/pti related code:
- Preserve r8-r11 in int $0x80. r8-r11 need to be preserved, but the
int$80 entry code removed that quite some time ago. Make it correct
again.
- A set of fixes for the Global Bit work which went into 4.17 and
caused a bunch of interesting regressions:
- Triggering a BUG in the page attribute code due to a missing
check for early boot stage
- Warnings in the page attribute code about holes in the kernel
text mapping which are caused by the freeing of the init code.
Handle such holes gracefully.
- Reduce the amount of kernel memory which is set global to the
actual text and do not incidentally overlap with data.
- Disable the global bit when RANDSTRUCT is enabled as it
partially defeats the hardening.
- Make the page protection setup correct for vma->page_prot
population again. The adjustment of the protections fell through
the crack during the Global bit rework and triggers warnings on
machines which do not support certain features, e.g. NX"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/64/compat: Preserve r8-r11 in int $0x80
x86/pti: Filter at vma->vm_page_prot population
x86/pti: Disallow global kernel text with RANDSTRUCT
x86/pti: Reduce amount of kernel text allowed to be Global
x86/pti: Fix boot warning from Global-bit setting
x86/pti: Fix boot problems from Global-bit setting
Pull timer fixes from Thomas Gleixner:
"Two fixes from the timer departement:
- Fix a long standing issue in the NOHZ tick code which causes RB
tree corruption, delayed timers and other malfunctions. The cause
for this is code which modifies the expiry time of an enqueued
hrtimer.
- Revert the CLOCK_MONOTONIC/CLOCK_BOOTTIME unification due to
regression reports. Seems userspace _is_ relying on the documented
behaviour despite our hope that it wont"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME
tick/sched: Do not mess with an enqueued hrtimer
Pull perf fixes from Thomas Gleixner:
"The perf update contains the following bits:
x86:
- Prevent setting freeze_on_smi on PerfMon V1 CPUs to avoid #GP
perf stat:
- Keep the '/' event modifier separator in fallback, for example when
fallbacking from 'cpu/cpu-cycles/' to user level only, where it
should become 'cpu/cpu-cycles/u' and not 'cpu/cpu-cycles/:u' (Jiri
Olsa)
- Fix PMU events parsing rule, improving error reporting for invalid
events (Jiri Olsa)
- Disable write_backward and other event attributes for !group events
in a group, fixing, for instance this group: '{cycles,msr/aperf/}:S'
that has leader sampling (:S) and where just the 'cycles', the
leader event, should have the write_backward attribute set, in this
case it all fails because the PMU where 'msr/aperf/' lives doesn't
accepts write_backward style sampling (Jiri Olsa)
- Only fall back group read for leader (Kan Liang)
- Fix core PMU alias list for x86 platform (Kan Liang)
- Print out hint for mixed PMU group error (Kan Liang)
- Fix duplicate PMU name for interval print (Kan Liang)
Core:
- Set main kernel end address properly when reading kernel and module
maps (Namhyung Kim)
perf mem:
- Fix incorrect entries and add missing man options (Sangwon Hong)
s/390:
- Remove s390 specific strcmp_cpuid_cmp function (Thomas Richter)
- Adapt 'perf test' case record+probe_libc_inet_pton.sh for s390
- Fix s390 undefined record__auxtrace_init() return value in 'perf
record' (Thomas Richter)"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1
perf stat: Fix duplicate PMU name for interval print
perf evsel: Only fall back group read for leader
perf stat: Print out hint for mixed PMU group error
perf pmu: Fix core PMU alias list for X86 platform
perf record: Fix s390 undefined record__auxtrace_init() return value
perf mem: Document incorrect and missing options
perf evsel: Disable write_backward for leader sampling group events
perf pmu: Fix pmu events parsing rule
perf stat: Keep the / modifier separator in fallback
perf test: Adapt test case record+probe_libc_inet_pton.sh for s390
perf list: Remove s390 specific strcmp_cpuid_cmp function
perf machine: Set main kernel end address properly
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Merge tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix misc bugs and a regression for ext4"
* tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: add MODULE_SOFTDEP to ensure crc32c is included in the initramfs
ext4: fix bitmap position validation
ext4: set h_journal if there is a failure starting a reserved handle
ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
The comment claims that this helper will try not to loose bits, but for
64bit long it looses the high bits before hashing 64bit long into 32bit
int. Use the helper hash_long() to do the right thing for 64bit long.
For 32bit long, there is no change.
All the callers of end_name_hash() either assign the result to
qstr->hash, which is u32 or return the result as an int value (e.g.
full_name_hash()). Change the helper return type to int to conform to
its users.
[ It took me a while to apply this, because my initial reaction to it
was - incorrectly - that it could make for slower code.
After having looked more at it, I take back all my complaints about
the patch, Amir was right and I was mis-reading things or just being
stupid.
I also don't worry too much about the possible performance impact of
this on 64-bit, since most architectures that actually care about
performance end up not using this very much (the dcache code is the
most performance-critical, but the word-at-a-time case uses its own
hashing anyway).
So this ends up being mostly used for filesystems that do their own
degraded hashing (usually because they want a case-insensitive
comparison function).
A _tiny_ worry remains, in that not everybody uses DCACHE_WORD_ACCESS,
and then this potentially makes things more expensive on 64-bit
architectures with slow or lacking multipliers even for the normal
case.
That said, realistically the only such architecture I can think of is
PA-RISC. Nobody really cares about performance on that, it's more of a
"look ma, I've got warts^W an odd machine" platform.
So the patch is fine, and all my initial worries were just misplaced
from not looking at this properly. - Linus ]
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The AFFS filesystem is still in use by m68k community (Link #2), but as
there was no code activity and no maintainer, the filesystem appeared on
the list of candidates for staging/removal (Link #1).
I volunteer to act as a maintainer of AFFS to collect any fixes that
might show up and to guard fs/affs/ against another spring cleaning.
Link: https://lkml.kernel.org/r/20180425154602.GA8546@bombadil.infradead.org
Link: https://lkml.kernel.org/r/1613268.lKBQxPXt8J@merkaba
CC: Martin Steigerwald <martin@lichtvoll.de>
CC: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i2c fixes from Wolfram Sang:
- two driver fixes
- better parameter check for the core
- Documentation updates
- part of a tree-wide HAS_DMA cleanup
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: sprd: Fix the i2c count issue
i2c: sprd: Prevent i2c accesses after suspend is called
i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr()
Documentation/i2c: adopt kernel commenting style in examples
Documentation/i2c: sync docs with current state of i2c-tools
Documentation/i2c: whitespace cleanup
i2c: Remove depends on HAS_DMA in case of platform dependency
Pull crypto fixes from Herbert Xu:
- crypto API regression that may cause sporadic alloc failures
- double-free bug in drbg
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: drbg - set freed buffers to NULL
crypto: api - fix finding algorithm currently being tested
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Merge tag '4.17-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"A few security related fixes for SMB3, most importantly for SMB3.11
encryption"
* tag '4.17-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: smbd: Avoid allocating iov on the stack
cifs: smbd: Don't use RDMA read/write when signing is used
SMB311: Fix reconnect
SMB3: Fix 3.11 encryption to Windows and handle encrypted smb3 tcon
CIFS: set *resp_buf_type to NO_BUFFER on error
A bunch of fixes, mostly for existing code and going to stable.
Our memory hot-unplug path wasn't flushing the cache before removing memory.
That is a problem now that we are doing memory hotplug on bare metal.
Three fixes for the NPU code that supports devices connected via NVLink (ie.
GPUs). The main one tweaks the TLB flush algorithm to avoid soft lockups for
large flushes.
A fix for our memory error handling where we would loop infinitely, returning
back to the bad access and hard lockup the CPU.
Fixes for the OPAL RTC driver, which wasn't handling some error cases correctly.
A fix for a hardlockup in the powernv cpufreq driver.
And finally two fixes to our smp_send_stop(), required due to a recent change to
use it on shutdown.
Thanks to:
Alistair Popple, Balbir Singh, Laurentiu Tudor, Mahesh Salgaonkar, Mark
Hairgrove, Nicholas Piggin, Rashmica Gupta, Shilpasri G Bhat.
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Merge tag 'powerpc-4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A bunch of fixes, mostly for existing code and going to stable.
Our memory hot-unplug path wasn't flushing the cache before removing
memory. That is a problem now that we are doing memory hotplug on bare
metal.
Three fixes for the NPU code that supports devices connected via
NVLink (ie. GPUs). The main one tweaks the TLB flush algorithm to
avoid soft lockups for large flushes.
A fix for our memory error handling where we would loop infinitely,
returning back to the bad access and hard lockup the CPU.
Fixes for the OPAL RTC driver, which wasn't handling some error cases
correctly.
A fix for a hardlockup in the powernv cpufreq driver.
And finally two fixes to our smp_send_stop(), required due to a recent
change to use it on shutdown.
Thanks to: Alistair Popple, Balbir Singh, Laurentiu Tudor, Mahesh
Salgaonkar, Mark Hairgrove, Nicholas Piggin, Rashmica Gupta, Shilpasri
G Bhat"
* tag 'powerpc-4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kvm/booke: Fix altivec related build break
powerpc: Fix deadlock with multiple calls to smp_send_stop
cpufreq: powernv: Fix hardlockup due to synchronous smp_call in timer interrupt
powerpc: Fix smp_send_stop NMI IPI handling
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
powerpc/mce: Fix a bug where mce loops on memory UE.
powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range
powerpc/powernv/npu: Prevent overwriting of pnv_npu2_init_contex() callback parameters
powerpc/powernv/npu: Add lock to prevent race in concurrent context init/destroy
powerpc/powernv/memtrace: Let the arch hotunplug code flush cache
powerpc/mm: Flush cache on memory hot(un)plug
ARM:
- PSCI selection API, a leftover from 4.16 (for stable)
- Kick vcpu on active interrupt affinity change
- Plug a VMID allocation race on oversubscribed systems
- Silence debug messages
- Update Christoffer's email address (linaro -> arm)
x86:
- Expose userspace-relevant bits of a newly added feature
- Fix TLB flushing on VMX with VPID, but without EPT
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rMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- PSCI selection API, a leftover from 4.16 (for stable)
- Kick vcpu on active interrupt affinity change
- Plug a VMID allocation race on oversubscribed systems
- Silence debug messages
- Update Christoffer's email address (linaro -> arm)
x86:
- Expose userspace-relevant bits of a newly added feature
- Fix TLB flushing on VMX with VPID, but without EPT"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
x86/headers/UAPI: Move DISABLE_EXITS KVM capability bits to the UAPI
kvm: apic: Flush TLB after APIC mode/address change if VPIDs are in use
arm/arm64: KVM: Add PSCI version selection API
KVM: arm/arm64: vgic: Kick new VCPU on interrupt migration
arm64: KVM: Demote SVE and LORegion warnings to debug only
MAINTAINERS: Update e-mail address for Christoffer Dall
KVM: arm/arm64: Close VMID generation race
- Close some potential spectre-v1 vulnerabilities found by smatch
- Add missing list sentinel for CPUs that don't require KPTI
- Removal of unused 'addr' parameter for I/D cache coherency
- Removal of redundant set_fs(KERNEL_DS) calls in ptrace
- Fix single-stepping state machine handling in response to kernel traps
- Clang support for 128-bit integers
- Avoid instrumenting our out-of-line atomics in preparation for enabling
LSE atomics by default in 4.18
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Nothing too bad, but the spectre updates to smatch identified a few
places that may need sanitising so we've got those covered.
Details:
- Close some potential spectre-v1 vulnerabilities found by smatch
- Add missing list sentinel for CPUs that don't require KPTI
- Removal of unused 'addr' parameter for I/D cache coherency
- Removal of redundant set_fs(KERNEL_DS) calls in ptrace
- Fix single-stepping state machine handling in response to kernel
traps
- Clang support for 128-bit integers
- Avoid instrumenting our out-of-line atomics in preparation for
enabling LSE atomics by default in 4.18"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: avoid instrumenting atomic_ll_sc.o
KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr()
KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_get_irq()
arm64: fix possible spectre-v1 in ptrace_hbp_get_event()
arm64: support __int128 with clang
arm64: only advance singlestep for user instruction traps
arm64/kernel: rename module_emit_adrp_veneer->module_emit_veneer_for_adrp
arm64: ptrace: remove addr_limit manipulation
arm64: mm: drop addr parameter from sync icache and dcache
arm64: add sentinel to kpti_safe_list
- Fix display of module section addresses in sysfs, which were getting
hashed with %pK and breaking tools like perf.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules fix from Jessica Yu:
"Fix display of module section addresses in sysfs, which were getting
hashed with %pK and breaking tools like perf"
* tag 'modules-for-v4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: Fix display of wrong module .text address
messenger layer, marked for stable.
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Merge tag 'ceph-for-4.17-rc3' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A CephFS quota follow-up and fixes for two older issues in the
messenger layer, marked for stable"
* tag 'ceph-for-4.17-rc3' of git://github.com/ceph/ceph-client:
libceph: validate con->state at the top of try_write()
libceph: reschedule a tick in finish_hunting()
libceph: un-backoff on tick when we have a authenticated session
ceph: check if mds create snaprealm when setting quota
Here are some small char and misc driver fixes for 4.17-rc3
A variety of small things that have fallen out after 4.17-rc1 was out.
Some vboxguest fixes for systems with lots of memory, amba bus fixes,
some MAINTAINERS updates, uio_hv_generic driver fixes, and a few other
minor things that resolve problems that people reported.
The amba bus fixes took twice to get right, the first time I messed up
applying the patches in the wrong order, hence the revert and later
addition again with the correct fix, sorry about that.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and misc driver fixes for 4.17-rc3
A variety of small things that have fallen out after 4.17-rc1 was out.
Some vboxguest fixes for systems with lots of memory, amba bus fixes,
some MAINTAINERS updates, uio_hv_generic driver fixes, and a few other
minor things that resolve problems that people reported.
The amba bus fixes took twice to get right, the first time I messed up
applying the patches in the wrong order, hence the revert and later
addition again with the correct fix, sorry about that.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ARM: amba: Fix race condition with driver_override
ARM: amba: Make driver_override output consistent with other buses
Revert "ARM: amba: Fix race condition with driver_override"
ARM: amba: Don't read past the end of sysfs "driver_override" buffer
ARM: amba: Fix race condition with driver_override
virt: vbox: Log an error when we fail to get the host version
virt: vbox: Use __get_free_pages instead of kmalloc for DMA32 memory
virt: vbox: Add vbg_req_free() helper function
virt: vbox: Move declarations of vboxguest private functions to private header
slimbus: Fix out-of-bounds access in slim_slicesize()
MAINTAINERS: add dri-devel&linaro-mm for Android ION
fpga-manager: altera-ps-spi: preserve nCONFIG state
MAINTAINERS: update my email address
uio_hv_generic: fix subchannel ring mmap
uio_hv_generic: use correct channel in isr
uio_hv_generic: make ring buffer attribute for primary channel
uio_hv_generic: set size of ring buffer attribute
ANDROID: binder: prevent transactions into own process.
Here are some small driver core and firmware fixes for 4.17-rc3
There's a kobject WARN() removal to make syzkaller a lot happier about
some "normal" error paths that it keeps hitting, which should reduce the
number of false-positives we have been getting recently.
There's also some fimware test and documentation fixes, and the
coredump() function signature change that needed to happen after -rc1
before drivers started to take advantage of it.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg Kroah-Hartman:
"Here are some small driver core and firmware fixes for 4.17-rc3
There's a kobject WARN() removal to make syzkaller a lot happier about
some "normal" error paths that it keeps hitting, which should reduce
the number of false-positives we have been getting recently.
There's also some fimware test and documentation fixes, and the
coredump() function signature change that needed to happen after -rc1
before drivers started to take advantage of it.
All of these have been in linux-next with no reported issues"
* tag 'driver-core-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
firmware: some documentation fixes
selftests:firmware: fixes a call to a wrong function name
kobject: don't use WARN for registration failures
firmware: Fix firmware documentation for recent file renames
test_firmware: fix setting old custom fw path back on exit, second try
test_firmware: Install all scripts
drivers: change struct device_driver::coredump() return type to void
Here are some tty and serial driver fixes for reported issues for
4.17-rc3.
Nothing major, but a number of small things:
- device tree fixes/updates for serial ports
- earlycon fixes
- n_gsm fixes
- tty core change reverted to help resolve syszkaller reports
- other serial driver small fixes
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some tty and serial driver fixes for reported issues for
4.17-rc3.
Nothing major, but a number of small things:
- device tree fixes/updates for serial ports
- earlycon fixes
- n_gsm fixes
- tty core change reverted to help resolve syszkaller reports
- other serial driver small fixes
All of these have been in linux-next with no reported issues"
* tag 'tty-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: Use __GFP_NOFAIL for tty_ldisc_get()
tty: serial: xuartps: Setup early console when uartclk is also passed
tty: Don't call panic() at tty_ldisc_init()
tty: Avoid possible error pointer dereference at tty_ldisc_restore().
dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/
tty: serial: qcom_geni_serial: Use signed variable to get IRQ
earlycon: Use a pointer table to fix __earlycon_table stride
serial: sh-sci: Document r8a77470 bindings
dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/
serial: imx: fix cached UCR2 read on software reset
serial: imx: warn user when using unsupported configuration
serial: mvebu-uart: Fix local flags handling on termios update
tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set
tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
Move DISABLE_EXITS KVM capability bits to the UAPI just like the rest of
capabilities.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: x86@kernel.org
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Here are 2 staging driver fixups for 4.17-rc3.
The first is the remaining stragglers of the irda code removal that you
pointed out during the merge window. The second is a fix for the
wilc1000 driver due to a patch that got merged in 4.17-rc1.
Both of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are two staging driver fixups for 4.17-rc3.
The first is the remaining stragglers of the irda code removal that
you pointed out during the merge window. The second is a fix for the
wilc1000 driver due to a patch that got merged in 4.17-rc1.
Both of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: wilc1000: fix NULL pointer exception in host_int_parse_assoc_resp_info()
staging: irda: remove remaining remants of irda code removal
Here are a number of USB driver fixes for reported problems for
4.17-rc3.
The "largest" here is a number of phy core changes for reported problems
with the -rc1 release. There's also the usual musb and xhci fixes, as
well as new device id updates. There are also some usbip fixes for
reported problems as more people start to use that code with containers.
All of these have been in linux-next with no reported issues, except the
last few new device ids, which are "obviously correct" :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of USB driver fixes for reported problems for
4.17-rc3.
The "largest" here is a number of phy core changes for reported
problems with the -rc1 release. There's also the usual musb and xhci
fixes, as well as new device id updates. There are also some usbip
fixes for reported problems as more people start to use that code with
containers.
All of these have been in linux-next with no reported issues, except
the last few new device ids, which are "obviously correct" :)"
* tag 'usb-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
USB: musb: dsps: drop duplicate phy initialisation
USB: musb: host: prevent core phy initialisation
usb: core: phy: add the SPDX-License-Identifier and include guard
xhci: Fix Kernel oops in xhci dbgtty
usb: select USB_COMMON for usb role switch config
usb: core: phy: add missing forward declaration for "struct device"
usb: core: phy: make it a no-op if CONFIG_GENERIC_PHY is disabled
usb: core: use phy_exit during suspend if wake up is not supported
usb: core: split usb_phy_roothub_{init,alloc}
usb: core: phy: fix return value of usb_phy_roothub_exit()
usb: typec: ucsi: Increase command completion timeout value
Revert "xhci: plat: Register shutdown for xhci_plat"
usb: core: Add quirk for HP v222w 16GB Mini
Documentation: typec.rst: Use literal-block element with ascii art
usb: typec: ucsi: fix tracepoint related build error
usbip: usbip_event: fix to not print kernel pointer address
usbip: usbip_host: fix to hold parent lock for device_attach() calls
usbip: vhci_hcd: Fix usb device and sockfd leaks
usbip: vhci_hcd: check rhport before using in vhci_hub_control()
USB: Increment wakeup count on remote wakeup.
...
