e3df4c6e48
811555 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Michal Hocko
|
e3df4c6e48 |
mm, memory_hotplug: __offline_pages fix wrong locking
Jan has noticed that we do double unlock on some failure paths when
offlining a page range. This is indeed the case when
test_pages_in_a_zone respp. start_isolate_page_range fail. This was an
omission when forward porting the debugging patch from an older kernel.
Fix the issue by dropping mem_hotplug_done from the failure condition
and keeping the single unlock in the catch all failure path.
Link: http://lkml.kernel.org/r/20190115120307.22768-1-mhocko@kernel.org
Fixes:
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Naoya Horiguchi
|
6376360ecb |
mm: hwpoison: use do_send_sig_info() instead of force_sig()
Currently memory_failure() is racy against process's exiting, which
results in kernel crash by null pointer dereference.
The root cause is that memory_failure() uses force_sig() to forcibly
kill asynchronous (meaning not in the current context) processes. As
discussed in thread https://lkml.org/lkml/2010/6/8/236 years ago for OOM
fixes, this is not a right thing to do. OOM solves this issue by using
do_send_sig_info() as done in commit
|
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Anders Roxell
|
0d0c8de878 |
kasan: mark file common so ftrace doesn't trace it
When option CONFIG_KASAN is enabled toghether with ftrace, function ftrace_graph_caller() gets in to a recursion, via functions kasan_check_read() and kasan_check_write(). Breakpoint 2, ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:179 179 mcount_get_pc x0 // function's pc (gdb) bt #0 ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:179 #1 0xffffff90101406c8 in ftrace_caller () at ../arch/arm64/kernel/entry-ftrace.S:151 #2 0xffffff90106fd084 in kasan_check_write (p=0xffffffc06c170878, size=4) at ../mm/kasan/common.c:105 #3 0xffffff90104a2464 in atomic_add_return (v=<optimized out>, i=<optimized out>) at ./include/generated/atomic-instrumented.h:71 #4 atomic_inc_return (v=<optimized out>) at ./include/generated/atomic-fallback.h:284 #5 trace_graph_entry (trace=0xffffffc03f5ff380) at ../kernel/trace/trace_functions_graph.c:441 #6 0xffffff9010481774 in trace_graph_entry_watchdog (trace=<optimized out>) at ../kernel/trace/trace_selftest.c:741 #7 0xffffff90104a185c in function_graph_enter (ret=<optimized out>, func=<optimized out>, frame_pointer=18446743799894897728, retp=<optimized out>) at ../kernel/trace/trace_functions_graph.c:196 #8 0xffffff9010140628 in prepare_ftrace_return (self_addr=18446743592948977792, parent=0xffffffc03f5ff418, frame_pointer=18446743799894897728) at ../arch/arm64/kernel/ftrace.c:231 #9 0xffffff90101406f4 in ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:182 Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb) Rework so that the kasan implementation isn't traced. Link: http://lkml.kernel.org/r/20181212183447.15890-1-anders.roxell@linaro.org Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Acked-by: Dmitry Vyukov <dvyukov@google.com> Tested-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jonathan Neuschäfer
|
9807683384 |
init/Kconfig: fix grammar by moving a closing parenthesis
Link: http://lkml.kernel.org/r/20190129150813.15785-1-j.neuschaefer@gmx.net Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dan Carpenter
|
db7ddeab3c |
lib/test_kmod.c: potential double free in error handling
There is a copy and paste bug so we set "config->test_driver" to NULL
twice instead of setting "config->test_fs". Smatch complains that it
leads to a double free:
lib/test_kmod.c:840 __kmod_config_init() warn: 'config->test_fs' double freed
Link: http://lkml.kernel.org/r/20190121140011.GA14283@kadam
Fixes:
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Shakeel Butt
|
cefc7ef3c8 |
mm, oom: fix use-after-free in oom_kill_process
Syzbot instance running on upstream kernel found a use-after-free bug in
oom_kill_process. On further inspection it seems like the process
selected to be oom-killed has exited even before reaching
read_lock(&tasklist_lock) in oom_kill_process(). More specifically the
tsk->usage is 1 which is due to get_task_struct() in oom_evaluate_task()
and the put_task_struct within for_each_thread() frees the tsk and
for_each_thread() tries to access the tsk. The easiest fix is to do
get/put across the for_each_thread() on the selected task.
Now the next question is should we continue with the oom-kill as the
previously selected task has exited? However before adding more
complexity and heuristics, let's answer why we even look at the children
of oom-kill selected task? The select_bad_process() has already selected
the worst process in the system/memcg. Due to race, the selected
process might not be the worst at the kill time but does that matter?
The userspace can use the oom_score_adj interface to prefer children to
be killed before the parent. I looked at the history but it seems like
this is there before git history.
Link: http://lkml.kernel.org/r/20190121215850.221745-1-shakeelb@google.com
Reported-by: syzbot+7fbbfa368521945f0e3d@syzkaller.appspotmail.com
Fixes:
|
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Qian Cai
|
b13bc35193 |
mm/hotplug: invalid PFNs from pfn_to_online_page()
On an arm64 ThunderX2 server, the first kmemleak scan would crash [1] with CONFIG_DEBUG_VM_PGFLAGS=y due to page_to_nid() found a pfn that is not directly mapped (MEMBLOCK_NOMAP). Hence, the page->flags is uninitialized. This is due to the commit |
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Oscar Salvador
|
eeb0efd071 |
mm,memory_hotplug: fix scan_movable_pages() for gigantic hugepages
This is the same sort of error we saw in commit
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Johannes Weiner
|
1b69ac6b40 |
psi: fix aggregation idle shut-off
psi has provisions to shut off the periodic aggregation worker when
there is a period of no task activity - and thus no data that needs
aggregating. However, while developing psi monitoring, Suren noticed
that the aggregation clock currently won't stay shut off for good.
Debugging this revealed a flaw in the idle design: an aggregation run
will see no task activity and decide to go to sleep; shortly thereafter,
the kworker thread that executed the aggregation will go idle and cause
a scheduling change, during which the psi callback will kick the
!pending worker again. This will ping-pong forever, and is equivalent
to having no shut-off logic at all (but with more code!)
Fix this by exempting aggregation workers from psi's clock waking logic
when the state change is them going to sleep. To do this, tag workers
with the last work function they executed, and if in psi we see a worker
going to sleep after aggregating psi data, we will not reschedule the
aggregation work item.
What if the worker is also executing other items before or after?
Any psi state times that were incurred by work items preceding the
aggregation work will have been collected from the per-cpu buckets
during the aggregation itself. If there are work items following the
aggregation work, the worker's last_func tag will be overwritten and the
aggregator will be kept alive to process this genuine new activity.
If the aggregation work is the last thing the worker does, and we decide
to go idle, the brief period of non-idle time incurred between the
aggregation run and the kworker's dequeue will be stranded in the
per-cpu buckets until the clock is woken by later activity. But that
should not be a problem. The buckets can hold 4s worth of time, and
future activity will wake the clock with a 2s delay, giving us 2s worth
of data we can leave behind when disabling aggregation. If it takes a
worker more than two seconds to go idle after it finishes its last work
item, we likely have bigger problems in the system, and won't notice one
sample that was averaged with a bogus per-CPU weight.
Link: http://lkml.kernel.org/r/20190116193501.1910-1-hannes@cmpxchg.org
Fixes:
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Mikhail Zaslonko
|
24feb47c5f |
mm, memory_hotplug: test_pages_in_a_zone do not pass the end of zone
If memory end is not aligned with the sparse memory section boundary, the mapping of such a section is only partly initialized. This may lead to VM_BUG_ON due to uninitialized struct pages access from test_pages_in_a_zone() function triggered by memory_hotplug sysfs handlers. Here are the the panic examples: CONFIG_DEBUG_VM_PGFLAGS=y kernel parameter mem=2050M -------------------------- page:000003d082008000 is uninitialized and poisoned page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) Call Trace: test_pages_in_a_zone+0xde/0x160 show_valid_zones+0x5c/0x190 dev_attr_show+0x34/0x70 sysfs_kf_seq_show+0xc8/0x148 seq_read+0x204/0x480 __vfs_read+0x32/0x178 vfs_read+0x82/0x138 ksys_read+0x5a/0xb0 system_call+0xdc/0x2d8 Last Breaking-Event-Address: test_pages_in_a_zone+0xde/0x160 Kernel panic - not syncing: Fatal exception: panic_on_oops Fix this by checking whether the pfn to check is within the zone. [mhocko@suse.com: separated this change from http://lkml.kernel.org/r/20181105150401.97287-2-zaslonko@linux.ibm.com] Link: http://lkml.kernel.org/r/20190128144506.15603-3-mhocko@kernel.org [mhocko@suse.com: separated this change from http://lkml.kernel.org/r/20181105150401.97287-2-zaslonko@linux.ibm.com] Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Tested-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michal Hocko
|
efad4e475c |
mm, memory_hotplug: is_mem_section_removable do not pass the end of a zone
Patch series "mm, memory_hotplug: fix uninitialized pages fallouts", v2.
Mikhail Zaslonko has posted fixes for the two bugs quite some time ago
[1]. I have pushed back on those fixes because I believed that it is
much better to plug the problem at the initialization time rather than
play whack-a-mole all over the hotplug code and find all the places
which expect the full memory section to be initialized.
We have ended up with commit
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Tetsuo Handa
|
9bcdeb51bd |
oom, oom_reaper: do not enqueue same task twice
Arkadiusz reported that enabling memcg's group oom killing causes
strange memcg statistics where there is no task in a memcg despite the
number of tasks in that memcg is not 0. It turned out that there is a
bug in wake_oom_reaper() which allows enqueuing same task twice which
makes impossible to decrease the number of tasks in that memcg due to a
refcount leak.
This bug existed since the OOM reaper became invokable from
task_will_free_mem(current) path in out_of_memory() in Linux 4.7,
T1@P1 |T2@P1 |T3@P1 |OOM reaper
----------+----------+----------+------------
# Processing an OOM victim in a different memcg domain.
try_charge()
mem_cgroup_out_of_memory()
mutex_lock(&oom_lock)
try_charge()
mem_cgroup_out_of_memory()
mutex_lock(&oom_lock)
try_charge()
mem_cgroup_out_of_memory()
mutex_lock(&oom_lock)
out_of_memory()
oom_kill_process(P1)
do_send_sig_info(SIGKILL, @P1)
mark_oom_victim(T1@P1)
wake_oom_reaper(T1@P1) # T1@P1 is enqueued.
mutex_unlock(&oom_lock)
out_of_memory()
mark_oom_victim(T2@P1)
wake_oom_reaper(T2@P1) # T2@P1 is enqueued.
mutex_unlock(&oom_lock)
out_of_memory()
mark_oom_victim(T1@P1)
wake_oom_reaper(T1@P1) # T1@P1 is enqueued again due to oom_reaper_list == T2@P1 && T1@P1->oom_reaper_list == NULL.
mutex_unlock(&oom_lock)
# Completed processing an OOM victim in a different memcg domain.
spin_lock(&oom_reaper_lock)
# T1P1 is dequeued.
spin_unlock(&oom_reaper_lock)
but memcg's group oom killing made it easier to trigger this bug by
calling wake_oom_reaper() on the same task from one out_of_memory()
request.
Fix this bug using an approach used by commit
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Jan Kara
|
80409c65e2 |
mm: migrate: make buffer_migrate_page_norefs() actually succeed
Currently, buffer_migrate_page_norefs() was constantly failing because
buffer_migrate_lock_buffers() grabbed reference on each buffer. In
fact, there's no reason for buffer_migrate_lock_buffers() to grab any
buffer references as the page is locked during all our operation and
thus nobody can reclaim buffers from the page.
So remove grabbing of buffer references which also makes
buffer_migrate_page_norefs() succeed.
Link: http://lkml.kernel.org/r/20190116131217.7226-1-jack@suse.cz
Fixes:
|
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Andrei Vagin
|
8fb335e078 |
kernel/exit.c: release ptraced tasks before zap_pid_ns_processes
Currently, exit_ptrace() adds all ptraced tasks in a dead list, then
zap_pid_ns_processes() waits on all tasks in a current pidns, and only
then are tasks from the dead list released.
zap_pid_ns_processes() can get stuck on waiting tasks from the dead
list. In this case, we will have one unkillable process with one or
more dead children.
Thanks to Oleg for the advice to release tasks in find_child_reaper().
Link: http://lkml.kernel.org/r/20190110175200.12442-1-avagin@gmail.com
Fixes:
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Qian Cai
|
a8e911d135 |
x86_64: increase stack size for KASAN_EXTRA
If the kernel is configured with KASAN_EXTRA, the stack size is
increasted significantly because this option sets "-fstack-reuse" to
"none" in GCC [1]. As a result, it triggers stack overrun quite often
with 32k stack size compiled using GCC 8. For example, this reproducer
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/madvise/madvise06.c
triggers a "corrupted stack end detected inside scheduler" very reliably
with CONFIG_SCHED_STACK_END_CHECK enabled.
There are just too many functions that could have a large stack with
KASAN_EXTRA due to large local variables that have been called over and
over again without being able to reuse the stacks. Some noticiable ones
are
size
7648 shrink_page_list
3584 xfs_rmap_convert
3312 migrate_page_move_mapping
3312 dev_ethtool
3200 migrate_misplaced_transhuge_page
3168 copy_process
There are other 49 functions are over 2k in size while compiling kernel
with "-Wframe-larger-than=" even with a related minimal config on this
machine. Hence, it is too much work to change Makefiles for each object
to compile without "-fsanitize-address-use-after-scope" individually.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715#c23
Although there is a patch in GCC 9 to help the situation, GCC 9 probably
won't be released in a few months and then it probably take another
6-month to 1-year for all major distros to include it as a default.
Hence, the stack usage with KASAN_EXTRA can be revisited again in 2020
when GCC 9 is everywhere. Until then, this patch will help users avoid
stack overrun.
This has already been fixed for arm64 for the same reason via
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Andrea Arcangeli
|
1ac25013fb |
mm/hugetlb.c: teach follow_hugetlb_page() to handle FOLL_NOWAIT
hugetlb needs the same fix as faultin_nopage (which was applied in commit |
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Masahiro Yamada
|
36c0f7f0f8 |
arch: unexport asm/shmparam.h for all architectures
Most architectures do not export shmparam.h to user-space. $ find arch -name shmparam.h | sort arch/alpha/include/asm/shmparam.h arch/arc/include/asm/shmparam.h arch/arm64/include/asm/shmparam.h arch/arm/include/asm/shmparam.h arch/csky/include/asm/shmparam.h arch/ia64/include/asm/shmparam.h arch/mips/include/asm/shmparam.h arch/nds32/include/asm/shmparam.h arch/nios2/include/asm/shmparam.h arch/parisc/include/asm/shmparam.h arch/powerpc/include/asm/shmparam.h arch/s390/include/asm/shmparam.h arch/sh/include/asm/shmparam.h arch/sparc/include/asm/shmparam.h arch/x86/include/asm/shmparam.h arch/xtensa/include/asm/shmparam.h Strangely, some users of the asm-generic wrapper export shmparam.h $ git grep 'generic-y += shmparam.h' arch/c6x/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/h8300/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/hexagon/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/m68k/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/microblaze/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/openrisc/include/uapi/asm/Kbuild:generic-y += shmparam.h arch/riscv/include/asm/Kbuild:generic-y += shmparam.h arch/unicore32/include/uapi/asm/Kbuild:generic-y += shmparam.h The newly added riscv correctly creates the asm-generic wrapper in the kernel space, but the others (c6x, h8300, hexagon, m68k, microblaze, openrisc, unicore32) create the one in the uapi directory. Digging into the git history, now I guess |
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Alexey Dobriyan
|
1fde6f21d9 |
proc: fix /proc/net/* after setns(2)
/proc entries under /proc/net/* can't be cached into dcache because
setns(2) can change current net namespace.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: avoid vim miscolorization]
[adobriyan@gmail.com: write test, add dummy ->d_revalidate hook: necessary if /proc/net/* is pinned at setns time]
Link: http://lkml.kernel.org/r/20190108192350.GA12034@avx2
Link: http://lkml.kernel.org/r/20190107162336.GA9239@avx2
Fixes:
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Oscar Salvador
|
1723058eab |
mm, memory_hotplug: don't bail out in do_migrate_range() prematurely
do_migrate_range() takes a memory range and tries to isolate the pages to put them into a list. This list will be later on used in migrate_pages() to know the pages we need to migrate. Currently, if we fail to isolate a single page, we put all already isolated pages back to their LRU and we bail out from the function. This is quite suboptimal, as this will force us to start over again because scan_movable_pages will give us the same range. If there is no chance that we can isolate that page, we will loop here forever. Issue debugged in [1] has proved that. During the debugging of that issue, it was noticed that if do_migrate_ranges() fails to isolate a single page, we will just discard the work we have done so far and bail out, which means that scan_movable_pages() will find again the same set of pages. Instead, we can just skip the error, keep isolating as much pages as possible and then proceed with the call to migrate_pages(). This will allow us to do as much work as possible at once. [1] https://lkml.org/lkml/2018/12/6/324 Michal said: : I still think that this doesn't give us a whole picture. Looping for : ever is a bug. Failing the isolation is quite possible and it should : be a ephemeral condition (e.g. a race with freeing the page or : somebody else isolating the page for whatever reason). And here comes : the disadvantage of the current implementation. We simply throw : everything on the floor just because of a ephemeral condition. The : racy page_count check is quite dubious to prevent from that. Link: http://lkml.kernel.org/r/20181211135312.27034-1-osalvador@suse.de Signed-off-by: Oscar Salvador <osalvador@suse.de> Acked-by: Michal Hocko <mhocko@suse.com> Cc: David Hildenbrand <david@redhat.com> Cc: Dan Williams <dan.j.williams@gmail.com> Cc: Jan Kara <jack@suse.cz> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
5eeb63359b |
Second 5.0 rc pull request
Still not much going on, the usual set of OOP's and driver updates this time.
- Fix two uapi breakage regressions in mlx5 drivers
- Various oops fixes in hfi1, mlx4, umem, uverbs, and ipoib
- A protocol bug fix for hfi1 preventing it from implementing the verbs
API properly, and a compatability fix for EXEC STACK user programs
- Fix missed refcounting in the 'advise_mr' patches merged this
cycle.
- Fix wrong use of the uABI in the hns SRQ patches merged this cycle.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Still not much going on, the usual set of oops and driver fixes this
time:
- Fix two uapi breakage regressions in mlx5 drivers
- Various oops fixes in hfi1, mlx4, umem, uverbs, and ipoib
- A protocol bug fix for hfi1 preventing it from implementing the
verbs API properly, and a compatability fix for EXEC STACK user
programs
- Fix missed refcounting in the 'advise_mr' patches merged this
cycle.
- Fix wrong use of the uABI in the hns SRQ patches merged this cycle"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/uverbs: Fix OOPs in uverbs_user_mmap_disassociate
IB/ipoib: Fix for use-after-free in ipoib_cm_tx_start
IB/uverbs: Fix ioctl query port to consider device disassociation
RDMA/mlx5: Fix flow creation on representors
IB/uverbs: Fix OOPs upon device disassociation
RDMA/umem: Add missing initialization of owning_mm
RDMA/hns: Update the kernel header file of hns
IB/mlx5: Fix how advise_mr() launches async work
RDMA/device: Expose ib_device_try_get(()
IB/hfi1: Add limit test for RC/UC send via loopback
IB/hfi1: Remove overly conservative VM_EXEC flag check
IB/{hfi1, qib}: Fix WC.byte_len calculation for UD_SEND_WITH_IMM
IB/mlx4: Fix using wrong function to destroy sqp AHs under SRIOV
RDMA/mlx5: Fix check for supported user flags when creating a QP
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Linus Torvalds
|
9ace868a17 |
Changes since last update:
- fix page migration when using iomap for pagecache management - fix a use-after-free bug in the directio code -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAlxPK1IACgkQ+H93GTRK tOvzeA/+I4bWVmovfV+EGFzHSV6zRsy17v6c4ncMrdia41rhmvxl+sAJgj2+uFCb J37cCMpPrmAOz+JGIW7PbCt8uzmwaXOfB9p9N58wM+hSSxtlN+wZFsIaoepOUTDK t3e2L7QQxQjN9HXZU0RNUi/zgS3poDfzap7cZ71spBxX5hVd1zVQa0q/o5OXr7OI sBlZLsIOhmS8WU2TmfkwzUVi+/FR4dCgyP8eDAGho/KbwvO9sfWzLNxf0U/ORWfA JG+2LX42eKKjX6wo39zW1mAXwOBhnLnCqOOgKrDy8XRXPARiNAzLNn0AwhxJSAqD z3qE298Oag6gZo0lNJjDXIko5D9y2koWjQe7z4fJ2JYpV5mSyq8/F4XDNO2FKIap 07p0OBGa1yfwQYmS5TrhJvYwvsHqTNs122jpowqeD3o0Xh64y2TZLEMdhhIsRjga +S9OSVQ15JDf/QeI5LPGK6Oc6B3JnRYgrYf7g7DYu4eqEsJ3V3pqtbXzjxGkzUjx 5xf85ujuRUQoKCPZQ00ewmsfZMfOcaYqfhosx6LvR6ZPvPH3Ex3nLHks5ZV/eXfR Auusq6XMiHb5ljukfVCa0WStntUl5gMaRha5QJy1Vg5Zd1ikvTkB5CkJFlODJ8hS GaEIa58Gf75dkHOvm4bFEOoy2EcE3I+qdwR+0xgg+6gDlNeZZNQ= =KYgc -----END PGP SIGNATURE----- Merge tag 'iomap-5.0-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull iomap fixes from Darrick Wong: "A couple of iomap fixes to eliminate some memory corruption and hang problems that were reported: - fix page migration when using iomap for pagecache management - fix a use-after-free bug in the directio code" * tag 'iomap-5.0-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: fix a use after free in iomap_dio_rw iomap: get/put the page in iomap_page_create/release() |
||
|
Linus Torvalds
|
3325254ca1 |
Power management fixes for 5.0-rc5
- Since ktime_get() turns out to be problematic for device
autosuspend in the PM-runtime framework, make it use
ktime_get_mono_fast_ns() instead (Vincent Guittot).
- Fix an initial value of a local variable in the "poll idle state"
code that makes it behave not exactly as expected when all idle
states except for the "polling" one are disabled (Doug Smythies).
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Merge tag 'pm-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a PM-runtime framework regression introduced by the recent
switch-over of device autosuspend to hrtimers and a mistake in the
"poll idle state" code introduced by a recent change in it.
Specifics:
- Since ktime_get() turns out to be problematic for device
autosuspend in the PM-runtime framework, make it use
ktime_get_mono_fast_ns() instead (Vincent Guittot).
- Fix an initial value of a local variable in the "poll idle state"
code that makes it behave not exactly as expected when all idle
states except for the "polling" one are disabled (Doug Smythies)"
* tag 'pm-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: poll_state: Fix default time limit
PM-runtime: Fix deadlock with ktime_get()
|
||
|
Linus Torvalds
|
4771eec1d0 |
ACPI-related Kconfig fixes for 5.0-rc5
Prevent invalid configurations from being created (e.g. by randconfig) due to some ACPI-related Kconfig options' dependencies that are not specified directly (Sinan Kaya). -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJcVB5hAAoJEILEb/54YlRxMpoP/iREan4jVTEAtF9XUbjzv2Yk KufRdIiDr6XMLjES8rIb1pQ7CkLybJ0YQ9PccG6zJ9X7mCCUHMCikzwEStppdcnO dB6cP8mwUSWTSrj30t4uDyN1DscCeLpm4YqVaF4lBPerYtFlkVTEVpvPncWZC5/d ST/Lcn/iaNmDnAcxGI4So5EOkxZxP1/tlYDSgaE2k2Qajn5TeGmgKYF5t2PXuHlc R/unZYJhxXUy89Dfhn4zXEpBRoaL+5xzvYpzHRkfLe9oLG5uWJW0fV/RBrazk/Z6 lYXQdn3r/i/BGeRyup/BrKrtufsNpZTM5kxFZ43NAm/9EDov5mBS0k+OVA0Eg6qk ZG3D60ihxciY6TxU3Opfa8OuOPB2ERILCRFiXgWQXlTP7O/jXN0sxdcW9YXkgua2 RDbESwP1miQi1+3mzrliAXSN+0nbrsapBv9XSk8CujUzypP0Os8+GzpAgVhnIDgF VO9U5wRdx3EaH1u2oh0dtLnZkZQxgiI+GU3/zzuymrVDAb4XMlAHrX4i4T/zFQKY vvTJzxr0BoaXkeU22546yDZE8NEPecUSYHhrYkxrEwW3awN+JoNO4OACIq2EVixJ M+qHSDtxVqm7YpUykukkzg4v8UTS8kdY3pPVTOXN8JhIn4lvx12piVPTP3Wn4+Qa 2CF07SL8OzqqmrV0Css/ =yW1p -----END PGP SIGNATURE----- Merge tag 'acpi-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI Kconfig fixes from Rafael Wysocki: "Prevent invalid configurations from being created (e.g. by randconfig) due to some ACPI-related Kconfig options' dependencies that are not specified directly (Sinan Kaya)" * tag 'acpi-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: platform/x86: Fix unmet dependency warning for SAMSUNG_Q10 platform/x86: Fix unmet dependency warning for ACPI_CMPC mfd: Fix unmet dependency warning for MFD_TPS68470 |
||
|
Linus Torvalds
|
cca2e06ae8 |
MMC host:
- mediatek: Fix incorrect register write for tunings - bcm2835: Fixup leakage of DMA channel on probe errors -----BEGIN PGP SIGNATURE----- iQJLBAABCgA1FiEEugLDXPmKSktSkQsV/iaEJXNYjCkFAlxUBucXHHVsZi5oYW5z c29uQGxpbmFyby5vcmcACgkQ/iaEJXNYjCmfxBAAmPUasE3SZQGyNIkf2P3xYflp ycJa/0l/b3GaL84omtAzwLc9F03DrDm0h3piQfWXvlU8PO1uxx3Hz/dTSlUWxruy jGSI7i9m30vfRfmnrXUnuEHWhxrR10hTzBp1sI2uyfbM9qiTvHxoiwQHw7H+eCEG uQ0VP41jENq60ositoOYbO2xntoaCnnqKLEotc116ekBrO28aUs6McXg+AtKtjSG ssY9FTBsXo3Dc/1uj0vRJPZlDQBfl0H7eCnHaobdgtqNeLGw441EChWR0xQAUNNd zrMI4mv00wjljLiFVSOaqH/+B52JXJrdYJrmjLTKrhJIv/hkEt6C0nQk8vd7V1Pw F5VrpNTzTW54i1FvArwaX72VCWL/mWwOyVcUYDLoh5tkLgV7PuXtQfjjzwt97Hsn qRVjX3mR0bueaLriKxNEh5tuMeHt5NMEhmWDzsyBHZ7PRCemVnJPcHgqw/JxoTri FN14cjU7FH8YSNIv+5xZ3ADbKI8C0Z1CHLuQsB6p0J2LJiWi6Tc3RuWXwO5VC3Xx QupcRVw6MviHH5379dr9Yb7cvbR9eWeI33z2eepamM1PFc+54FJKv7tZpd0MO4tZ RS5Vi8qgWieL9Flx3EvCxsodrV9Sgd1qwD4vW0o/jdOqQhuT+UtOyyxFY7sB3TnO LEMu/BUFayH2+6Kq4vY= =kWI8 -----END PGP SIGNATURE----- Merge tag 'mmc-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc Pull MMC host fixes from Ulf Hansson: - mediatek: Fix incorrect register write for tunings - bcm2835: Fixup leakage of DMA channel on probe errors * tag 'mmc-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay mmc: bcm2835: Fix DMA channel leak on probe error |
||
|
Linus Torvalds
|
520fac05b6 |
- Fix a deadlock in the designware driver
- Fix the error path in i3c_master_add_i3c_dev_locked() -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEKmCqpbOU668PNA69Ze02AX4ItwAFAlxUBSMWHGJicmV6aWxs b25Aa2VybmVsLm9yZwAKCRBl7TYBfgi3AEB+D/9fN3ErQqlgmRjZuVF0gqAWSekn Jnpz5fGpWVn/f9NAVRfZkk7czIJasvlE36pb4L/CeV9RI9Ad2YIljKjGJHduzlFC 12pRuY65ilwW4wO2dYkaUZSCozhaJ9Jm+kwrm/YMZbs9anWBKFUgFXtX3E5iqeH7 uVlS2toLhcWcqbQnO1QYIkScAnqrkyo74olbWo6PsxD1wCFL3DAXkxXbZRF2SHZm Icjp56QnLbot+5V5ING1azaXmi3k80hY4L/oaN08t1WFE4frSYOcLRgA8+kHAofb 7wthK4JwyW8GUriIqLIfhk+migcjUyrFkPsLRLyGrx16DvF/tDnfbhU/JHfPr6dy 8vTnglVunPAY3orZdMovZQhYzpm5vXgECF3aEExZe/KlJm+zccYirZngJLmAJL6z JQcBwvOdpnHa35Fyy+8ENJCGSgHbxaNJ9NjdD8rBmDrQijv5caPHgpfgt4+b+U6b Ndc5WKVqtia4x1A4HTEq3NWtkEkBTqsgaZcDC7ErvKh+8Uwelz4jpCT5E82WbyYK +LAHqNGxjMBFZnfQsJ+UHdYyoeafj5LgoJPilAEr/IwwAJqFNOUSLBizraQoKs6V Yz+1tndmGOP6vXa32Oykwf+mST0g6lpl05bLcmj0QE5uIic1062DEU8cCRUx8qZc zpTW3004/kEVv8NRqA== =cU2G -----END PGP SIGNATURE----- Merge tag 'i3c/fixes-for-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c fixes from Boris Brezillon: - Fix a deadlock in the designware driver - Fix the error path in i3c_master_add_i3c_dev_locked() * tag 'i3c/fixes-for-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: dw: fix deadlock i3c: fix missing detach if failed to retrieve i3c dev |
||
|
Linus Torvalds
|
c228d294f2 |
x86: explicitly align IO accesses in memcpy_{to,from}io
In commit |
||
Rafael J. Wysocki
|
b473406a06 |
Merge branch 'acpi-misc'
* acpi-misc: platform/x86: Fix unmet dependency warning for SAMSUNG_Q10 platform/x86: Fix unmet dependency warning for ACPI_CMPC |
||
|
Rafael J. Wysocki
|
cbffab6825 |
Merge branch 'pm-cpuidle-fixes'
* pm-cpuidle-fixes: cpuidle: poll_state: Fix default time limit |
||
|
Linus Torvalds
|
5b4746a031 |
Mostly driver fixes, but there's a core framework fix in here too.
- Revert the commits that introduce clk management for the SP
clk on MMP2 SoCs (used for OLPC). Turns out it wasn't a good
idea and there isn't any need to manage this clk, it just causes
more headaches.
- A performance regression that went unnoticed for many years where
we would traverse the entire clk tree looking for a clk by name
when we already have the pointer to said clk that we're looking
for
- A parent linkage fix for the qcom SDM845 clk driver
- An i.MX clk driver rate miscalculation fix where order of operations
were messed up
- One error handling fix from the static checkers
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Mostly driver fixes, but there's a core framework fix in here too:
- Revert the commits that introduce clk management for the SP clk on
MMP2 SoCs (used for OLPC). Turns out it wasn't a good idea and
there isn't any need to manage this clk, it just causes more
headaches.
- A performance regression that went unnoticed for many years where
we would traverse the entire clk tree looking for a clk by name
when we already have the pointer to said clk that we're looking for
- A parent linkage fix for the qcom SDM845 clk driver
- An i.MX clk driver rate miscalculation fix where order of
operations were messed up
- One error handling fix from the static checkers"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc: Use active only source for CPUSS clocks
clk: ti: Fix error handling in ti_clk_parse_divider_data()
clk: imx: Fix fractional clock set rate computation
clk: Remove global clk traversal on fetch parent index
Revert "dt-bindings: marvell,mmp2: Add clock id for the SP clock"
Revert "clk: mmp2: add SP clock"
Revert "Input: olpc_apsp - enable the SP clock"
|
||
|
Linus Torvalds
|
52107c545d |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu: "This fixes a bug in cavium/nitrox where the callback is invoked prior to the DMA unmap" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: cavium/nitrox - Invoke callback after DMA unmap |
||
|
Linus Torvalds
|
44e56f325b |
pci-v5.0-fixes-3
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||
Baruch Siach
|
f14bcc0add |
Revert "PCI: armada8k: Add support for gpio controlled reset signal"
Revert commit |
||
Koen Vandeputte
|
432dd7064a |
ARM: cns3xxx: Use actual size reads for PCIe
commit |
||
|
Koen Vandeputte
|
65dbb423cf |
ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment
Originally, cns3xxx used its own functions for mapping, reading and writing config registers. Commit |
||
Leonard Crestez
|
a4ace4fa20 |
PCI: imx: Fix checking pd_pcie_phy device link addition
The check on the device_link_add() return value is wrong;
this leads to erroneous code execution, so fix it.
Fixes:
|
||
|
Leonard Crestez
|
a6093ad7fc |
PCI: imx: Fix probe failure without power domain
On chips without a separate power domain for PCI (such as 6q/6qp) the
imx6_pcie_attach_pd() function incorrectly returns an error.
Fix by returning 0 if dev_pm_domain_attach_by_name() does not find
anything.
Fixes:
|
||
Andreas Gruenbacher
|
e74c98ca2d |
gfs2: Revert "Fix loop in gfs2_rbm_find"
This reverts commit
|
||
|
Linus Torvalds
|
9f78956714 |
linux-kselftest-5.0-rc5
This Kselftest update for Linux 5.0-rc5 consists of run-time fixes to cpu-hotplug, and seccomp tests, compile fixes to ir, net, and timers Makefiles. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAlxTPLEACgkQCwJExA0N Qxw7bBAApuoZgq9tdot9yE6BWZ6TFXtaZxRt/Y3ZFSMPqyF2pgizSHI4XIXGaPqe 22EUrCPnSVUwa/2FZRdhMj0gZKAUdHFIZ5/CvuxwrCDOcT0iwsju9u4a23Ms0wKb /Rgijyshv/25Rc26wUYSHPw1U9cU+THneOb+DsMABRoHP2kbwAFiXUWDkPLCrunL x85F9NKqlIAE4yv8GcyXMrU6ZMd6ute8UZa5nkBY5HZOX0dqLNgjDflzqUUAwJyE d0JdOfE6vdyD+bENGzRf6+7C0XCf2ykzPyzWkcqfoQ/1k0fuLlLyySkKlXLx9uF3 5b7cdxKapmWSP+/kVXb/G7JyEgUSw94wX9+JWT39SBio0kbkifQIt5B4rGUglHnh Zq9ePRXxwE+7KRI1SPnHTrFlx/fbi9WtREj8vMeKtZxwLn/gaLD8dbt8T6c2909i oOOQH3zdt7w88pD64KantSJ88yNRAtKfgYMkjPosMo7hR7yA29MHtsuwSeydcLs6 XBx04RJceWUnbhPoMIsi03VFJQ1GOBXjyjBgfpKp25BVaAfC4f7XRPqpib/a/iDr kp32Dz/9PedqkyG8hO6H9VDxC9YBQBDKIJ0me/lKe9R8lqp4a086qOjR+DGE8qye U9o2tVCkQjY6A0mTiT/HDDtlah30q1sZ7E0GZowKVJOSLfK1U8Q= =PV+K -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "This consists of run-time fixes to cpu-hotplug, and seccomp tests, compile fixes to ir, net, and timers Makefiles" * tag 'linux-kselftest-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: timers: use LDLIBS instead of LDFLAGS selftests: net: use LDLIBS instead of LDFLAGS selftests/seccomp: Enhance per-arch ptrace syscall skip tests selftests: Use lirc.h from kernel tree, not from system selftests: cpu-hotplug: fix case where CPUs offline > CPUs present |
||
|
Linus Torvalds
|
937108b093 |
NFS client fixes for Linux 5.0
Stable bugfix: - Fix up return value on fatal errors in nfs_page_async_flush() Other bugfix: - Fix NULL pointer dereference of dev_name -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAlxTOEsACgkQ18tUv7Cl QOuS2A//U2J1xz2N8R/k9I4puMXss+DpUAfryNRrDul0qL4tsr7UhHzHezJVl17X coPGA/YD+voybyT+eYeACCHUhDMNN8gj2KoCMlE1ueWAbiCOxrS4NgFM2djO3lka dlfqgSbVS1Z7+KtEEiFGq/HiF6y0WxanMBHnfhllNbXBDE6W0/+EPdgjX7fZF3FF AS6QQmruXL/b1/hJasfTsF3wcHs3y+Y23RP85j4F8aYrcWLOyPUhhuzv/o6Zoh37 fqltMxueWy+2qpn8dBE+9ILuKnUxnIsIwpF4YFhI7XrQlqMIWYMrShiqSDqYeVUP 3qdX8LtRR2VsNCTDR9HamVtCkbi9DkJRXQA/fChVPiLA+P0W2Q2uiKsNKEijuZdl 9fvl9aIL/+glczHrZeJTKellFSEocaZ/L5gVmpM6Fk8zyFitP0+nkO40g/qou+A0 O77A+EK9v4XPe8z87kwrZhphT12QZK2oIPMAZDnjitktbuObip0Wva4w92KnIqK0 QPIN081oxNF7BnWEUESCTeqXl670lV83Xek1eVHSCTnFOI68riP1YoUQlIhujV/R 82J+y6HJYtLDj87NuJrAAXtUrtzAPDr39TJr3V2aH0kdpPajUAhkC3gLix13ORyM cmP3K1M3U5f3HAElrywqQrGcxaYKN/Hpfb2427vEnbxieTKElVo= =ZOXa -----END PGP SIGNATURE----- Merge tag 'nfs-for-5.0-3' of git://git.linux-nfs.org/projects/anna/linux-nfs Pull NFS client fixes from Anna Schumaker: "This addresses two bugs, one in the error code handling of nfs_page_async_flush() and one to fix a potential NULL pointer dereference in nfs_parse_devname(). Stable bugfix: - Fix up return value on fatal errors in nfs_page_async_flush() Other bugfix: - Fix NULL pointer dereference of dev_name" * tag 'nfs-for-5.0-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFS: Fix up return value on fatal errors in nfs_page_async_flush() nfs: Fix NULL pointer dereference of dev_name |
||
|
Linus Torvalds
|
83f4997a01 |
sound fixes for 5.0-rc5
Only three fixes: a fix for Realtek HD-audio looks lengthy, but it's just a code shuffling, and the actual changes are fairly small. The rest are a PCM core fix for a long-standing bug that was recently scratched by syzkaller, and a trivial USB-audio quirk for DSD support. -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAlxS3GQOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE9t6w//e5Gjbp+3kU3XtJYpW9VwPCSnst7Wsy7BXrRj N7B+lG1Iaq6BESKjHYm64GF+WNfDYEeN0Xf6qlxIQaiDZclNTxAF6TPcVoRFLQA1 sC3GED6uzvw066Wf9EpXzqqnzTc2tX/G2fO2+7ppXL4W+xQ5PxtMvB/XrlVjwONM rUpdEC3NQAePO6eNJruTqc/BS6Gqs+WpWllAISU2mnIbbG3pMCbCZgyUMqsEWYwp QpghV0A0fwBxY6GaSA0cSevIJt811VzCEsPk/AlA9W9F2+Z8kPWg+ovhOi53ClUv JxYwzCpg65tE0+G56rrCB0njxK3eLl9HRbg7fqyzeSjDHestvzNHjGWgUynjHCD+ UBdDIKJayLGsZ5D/EtWPpFSbpMlqrZqXO8Nwkn1TP0k5+4btDoSA8Xor7yD6MRpd b4KR+zzxUxXqsNlrB8+yHqt/sQ0Ld3igrbGfXY8Q7+StxYq68o4/F9kPX8hjqhNc 49lkyOc/969E9MqNo/zj6aCbGz8VBHkw+7jYsxwMBZMgpZvSQ8IQ8LEE7t2etTEQ j87qb9A0yNgEiRV/U+YT0Y9gwgIPWFHrq9u8ISslEPcyRj0AA9dzI+SAlhzZWqb8 BcJypAT24GPzFGigsHbG7m69cJ7Je49YfdYjnu9Heg9whOSNFIWPW7WqLBJbgkXG DmxmlRE= =KZ/d -----END PGP SIGNATURE----- Merge tag 'sound-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Only three fixes. The fix for Realtek HD-audio looks lengthy, but it's just a code shuffling, and the actual changes are fairly small. The rest are a PCM core fix for a long-standing bug that was recently scratched by syzkaller, and a trivial USB-audio quirk for DSD support" * tag 'sound-5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Fixed hp_pin no value ALSA: pcm: Fix tight loop of OSS capture stream ALSA: usb-audio: Add Opus #3 to quirks for native DSD support |
||
Doug Smythies
|
1617971c66 |
cpuidle: poll_state: Fix default time limit
The default time is declared in units of microsecnds,
but is used as nanoseconds, resulting in significant
accounting errors for idle state 0 time when all idle
states deeper than 0 are disabled.
Under these unusual conditions, we don't really care
about the poll time limit anyhow.
Fixes:
|
||
Vincent Guittot
|
15efb47dc5 |
PM-runtime: Fix deadlock with ktime_get()
A deadlock has been seen when swicthing clocksources which use
PM-runtime. The call path is:
change_clocksource
...
write_seqcount_begin
...
timekeeping_update
...
sh_cmt_clocksource_enable
...
rpm_resume
pm_runtime_mark_last_busy
ktime_get
do
read_seqcount_begin
while read_seqcount_retry
....
write_seqcount_end
Although we should be safe because we haven't yet changed the
clocksource at that time, we can't do that because of seqcount
protection.
Use ktime_get_mono_fast_ns() instead which is lock safe for such
cases.
With ktime_get_mono_fast_ns, the timestamp is not guaranteed to be
monotonic across an update and as a result can goes backward.
According to update_fast_timekeeper() description: "In the worst
case, this can result is a slightly wrong timestamp (a few
nanoseconds)". For PM-runtime autosuspend, this means only that
the suspend decision may be slightly suboptimal.
Fixes:
|
||
Waiman Long
|
af0c9af1b3 |
fs/dcache: Track & report number of negative dentries
The current dentry number tracking code doesn't distinguish between positive & negative dentries. It just reports the total number of dentries in the LRU lists. As excessive number of negative dentries can have an impact on system performance, it will be wise to track the number of positive and negative dentries separately. This patch adds tracking for the total number of negative dentries in the system LRU lists and reports it in the 5th field in the /proc/sys/fs/dentry-state file. The number, however, does not include negative dentries that are in flight but not in the LRU yet as well as those in the shrinker lists which are on the way out anyway. The number of positive dentries in the LRU lists can be roughly found by subtracting the number of negative dentries from the unused count. Matthew Wilcox had confirmed that since the introduction of the dentry_stat structure in 2.1.60, the dummy array was there, probably for future extension. They were not replacements of pre-existing fields. So no sane applications that read the value of /proc/sys/fs/dentry-state will do dummy thing if the last 2 fields of the sysctl parameter are not zero. IOW, it will be safe to use one of the dummy array entry for negative dentry count. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Waiman Long
|
7d10f70fc1 |
fs: Don't need to put list_lru into its own cacheline
The list_lru structure is essentially just a pointer to a table of per-node LRU lists. Even if CONFIG_MEMCG_KMEM is defined, the list field is just used for LRU list registration and shrinker_id is set at initialization. Those fields won't need to be touched that often. So there is no point to make the list_lru structures to sit in their own cachelines. Signed-off-by: Waiman Long <longman@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Waiman Long
|
1dbd449c99 |
fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb()
The nr_dentry_unused per-cpu counter tracks dentries in both the LRU
lists and the shrink lists where the DCACHE_LRU_LIST bit is set.
The shrink_dcache_sb() function moves dentries from the LRU list to a
shrink list and subtracts the dentry count from nr_dentry_unused. This
is incorrect as the nr_dentry_unused count will also be decremented in
shrink_dentry_list() via d_shrink_del().
To fix this double decrement, the decrement in the shrink_dcache_sb()
function is taken out.
Fixes:
|
||
|
Linus Torvalds
|
1c0490ce90 |
IOMMU Fixes for Linux v5.0-rc4
A few more fixes this time:
- Two patches to fix the error path of the map_sg implementation
of the AMD IOMMU driver.
- Also a missing IOTLB flush is fixed in the AMD IOMMU driver.
- Memory leak fix for the Intel IOMMU driver.
- Fix a regression in the Mediatek IOMMU driver which caused
device initialization to fail (seen as broken HDMI output).
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Merge tag 'iommu-fixes-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"A few more fixes this time:
- Two patches to fix the error path of the map_sg implementation of
the AMD IOMMU driver.
- Also a missing IOTLB flush is fixed in the AMD IOMMU driver.
- Memory leak fix for the Intel IOMMU driver.
- Fix a regression in the Mediatek IOMMU driver which caused device
initialization to fail (seen as broken HDMI output)"
* tag 'iommu-fixes-v5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix IOMMU page flush when detach device from a domain
iommu/mediatek: Use correct fwspec in mtk_iommu_add_device()
iommu/vt-d: Fix memory leak in intel_iommu_put_resv_regions()
iommu/amd: Unmap all mapped pages in error path of map_sg
iommu/amd: Call free_iova_fast with pfn in map_sg
|
||
|
Linus Torvalds
|
877ef51d53 |
GPIO fixes for the v5.0 series:
- Fix timestamps on nested IRQs
- Handle IRQs properly in multiple instances of PCF857x
- Use the right data register and IRQ type setting in the
Spreadtrum GPIO driver
- Let the value argument work properly when setting direction
in the Altera GPIO driver
- Mask interrupts properly in the vf610 driver
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Merge tag 'gpio-v5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a bunch of GPIO fixes for the v5.0 series. I was helped out by
Bartosz in collecting these fixes, for which I am very grateful, the
biggest achievement in GPIO right now is work distribution.
There is one serious core fix (timestamping) and a bunch of driver
fixes:
- Fix timestamps on nested IRQs
- Handle IRQs properly in multiple instances of PCF857x
- Use the right data register and IRQ type setting in the Spreadtrum
GPIO driver
- Let the value argument work properly when setting direction in the
Altera GPIO driver
- Mask interrupts properly in the vf610 driver"
* tag 'gpio-v5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: vf610: Mask all GPIO interrupts
gpio: altera-a10sr: Set proper output level for direction_output
gpio: sprd: Fix incorrect irq type setting for the async EIC
gpio: sprd: Fix the incorrect data register
gpiolib: fix line event timestamps for nested irqs
gpio: pcf857x: Fix interrupts on multiple instances
|
||
|
Linus Torvalds
|
6296789878 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Need to save away the IV across tls async operations, from Dave
Watson.
2) Upon successful packet processing, we should liberate the SKB with
dev_consume_skb{_irq}(). From Yang Wei.
3) Only apply RX hang workaround on effected macb chips, from Harini
Katakam.
4) Dummy netdev need a proper namespace assigned to them, from Josh
Elsasser.
5) Some paths of nft_compat run lockless now, and thus we need to use a
proper refcnt_t. From Florian Westphal.
6) Avoid deadlock in mlx5 by doing IRQ locking, from Moni Shoua.
7) netrom does not refcount sockets properly wrt. timers, fix that by
using the sock timer API. From Cong Wang.
8) Fix locking of inexact inserts of xfrm policies, from Florian
Westphal.
9) Missing xfrm hash generation bump, also from Florian.
10) Missing of_node_put() in hns driver, from Yonglong Liu.
11) Fix DN_IFREQ_SIZE, from Johannes Berg.
12) ip6mr notifier is invoked during traversal of wrong table, from Nir
Dotan.
13) TX promisc settings not performed correctly in qed, from Manish
Chopra.
14) Fix OOB access in vhost, from Jason Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (52 commits)
MAINTAINERS: Add entry for XDP (eXpress Data Path)
net: set default network namespace in init_dummy_netdev()
net: b44: replace dev_kfree_skb_xxx by dev_consume_skb_xxx for drop profiles
net: caif: call dev_consume_skb_any when skb xmit done
net: 8139cp: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: macb: Apply RXUBR workaround only to versions with errata
net: ti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: apple: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
net: amd8111e: replace dev_kfree_skb_irq by dev_consume_skb_irq
net: alteon: replace dev_kfree_skb_irq by dev_consume_skb_irq
net: tls: Fix deadlock in free_resources tx
net: tls: Save iv in tls_rec for async crypto requests
vhost: fix OOB in get_rx_bufs()
qed: Fix stack out of bounds bug
qed: Fix system crash in ll2 xmit
qed: Fix VF probe failure while FLR
qed: Fix LACP pdu drops for VFs
qed: Fix bug in tx promiscuous mode settings
net: i825xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
...
|
||
Trond Myklebust
|
8fc75bed96 |
NFS: Fix up return value on fatal errors in nfs_page_async_flush()
Ensure that we return the fatal error value that caused us to exit
nfs_page_async_flush().
Fixes:
|
||
Yishai Hadas
|
7b21b69ab2 |
IB/uverbs: Fix OOPs in uverbs_user_mmap_disassociate
The vma->vm_mm can become impossible to get before rdma_umap_close() is
called, in this case we must not try to get an mm that is already
undergoing process exit. In this case there is no need to wait for
anything as the VMA will be destroyed by another thread soon and is
already effectively 'unreachable' by userspace.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
PGD 800000012bc50067 P4D 800000012bc50067 PUD 129db5067 PMD 0
Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 2050 Comm: bash Tainted: G W OE 4.20.0-rc6+ #3
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
RIP: 0010:__rb_erase_color+0xb9/0x280
Code: 84 17 01 00 00 48 3b 68 10 0f 84 15 01 00 00 48 89
58 08 48 89 de 48 89 ef 4c 89 e3 e8 90 84 22 00 e9 60 ff ff ff 48 8b 5d
10 <f6> 03 01 0f 84 9c 00 00 00 48 8b 43 10 48 85 c0 74 09 f6 00 01 0f
RSP: 0018:ffffbecfc090bab8 EFLAGS: 00010246
RAX: ffff97616346cf30 RBX: 0000000000000000 RCX: 0000000000000101
RDX: 0000000000000000 RSI: ffff97623b6ca828 RDI: ffff97621ef10828
RBP: ffff97621ef10828 R08: ffff97621ef10828 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff97623b6ca838
R13: ffffffffbb3fef50 R14: ffff97623b6ca828 R15: 0000000000000000
FS: 00007f7a5c31d740(0000) GS:ffff97623bb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011255a000 CR4: 00000000000006e0
Call Trace:
unlink_file_vma+0x3b/0x50
free_pgtables+0xa1/0x110
exit_mmap+0xca/0x1a0
? mlx5_ib_dealloc_pd+0x28/0x30 [mlx5_ib]
mmput+0x54/0x140
uverbs_user_mmap_disassociate+0xcc/0x160 [ib_uverbs]
uverbs_destroy_ufile_hw+0xf7/0x120 [ib_uverbs]
ib_uverbs_remove_one+0xea/0x240 [ib_uverbs]
ib_unregister_device+0xfb/0x200 [ib_core]
mlx5_ib_remove+0x51/0xe0 [mlx5_ib]
mlx5_remove_device+0xc1/0xd0 [mlx5_core]
mlx5_unregister_device+0x3d/0xb0 [mlx5_core]
remove_one+0x2a/0x90 [mlx5_core]
pci_device_remove+0x3b/0xc0
device_release_driver_internal+0x16d/0x240
unbind_store+0xb2/0x100
kernfs_fop_write+0x102/0x180
__vfs_write+0x36/0x1a0
? __alloc_fd+0xa9/0x170
? set_close_on_exec+0x49/0x70
vfs_write+0xad/0x1a0
ksys_write+0x52/0xc0
do_syscall_64+0x5b/0x180
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Cc: <stable@vger.kernel.org> # 4.19
Fixes:
|