This patch is split from the following one "btrfs: Introduce
extent_io_tree::owner to distinguish different io_trees" from Qu, so the
different changes are not mixed together.
Signed-off-by: David Sterba <dsterba@suse.com>
This patch will add a new member fs_info to extent_io_tree.
This provides the basis for later trace events to distinguish the output
between different btrfs filesystems. While this increases the size of
the structure, we want to know the source of the trace events and
passing the fs_info as an argument to all contexts is not possible.
The selftests are now allowed to set it to NULL as they don't use the
tracepoints.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Commit db2462a6ad ("btrfs: don't run delayed refs in the end transaction
logic") removed its last use, so now it does absolutely nothing, therefore
remove it.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
While calling functions inside zstd, we don't need to use the
indirection provided by the workspace_manager. Forward declarations are
added to maintain the function order of btrfs_compress_op.
Signed-off-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The error code used here is wrong as it's not invalid to try to start
scrub when umount has begun. Returning EAGAIN is more user friendly as
it's recoverable.
Signed-off-by: David Sterba <dsterba@suse.com>
inode->i_op is initialized multiple times. Perform it once. This was
left by 4779cc0424 ("Btrfs: get rid of btrfs_symlink_aops").
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
When we failed to find a root key in btrfs_update_root(), we just panic.
That's definitely not cool, fix it by outputting an unique error
message, aborting current transaction and return -EUCLEAN. This should
not normally happen as the root has been used by the callers in some
way.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Since commit d2e174d5d3 ("btrfs: document extent mapping assumptions in
checksum") we have a comment in place why map_private_extent_buffer()
can't return 1 in the csum_tree_block() case.
Make this a bit more explicit and WARN_ON() in case this this assumption
breaks.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently csum_tree_block() does two things, first it as it's name
suggests it calculates the checksum for a tree-block. But it also writes
this checksum to disk or reads an extent_buffer from disk and compares the
checksum with the calculated checksum, depending on the verify argument.
Furthermore one of the two callers passes in '1' for the verify argument,
the other one passes in '0'.
For clarity and less layering violations, factor out the second stage in
csum_tree_block()'s callers.
Suggested-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
- Fix function tracer and unwinder dependencies so that we don't
end up building kernels that will crash.
- Fix ARMv7M nommu initialisation (missing register initialisation)
- Fix EFI decompressor entry (ensuring barrier instructions are
enabled prior to use.)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=DnoV
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"A small number of ARM fixes
- Fix function tracer and unwinder dependencies so that we don't end
up building kernels that will crash
- Fix ARMv7M nommu initialisation (missing register initialisation)
- Fix EFI decompressor entry (ensuring barrier instructions are
enabled prior to use)"
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cache
ARM: 8856/1: NOMMU: Fix CCR register faulty initialization when MPU is disabled
ARM: fix function graph tracer and unwinder dependencies
A one-liner to make our Radix MMU support depend on HUGETLB_PAGE. We use some of
the hugetlb inlines (eg. pud_huge()) when operating on the linear mapping and if
they're compiled into empty wrappers we can corrupt memory.
Then two fixes to our VFIO IOMMU code. The first is not a regression but fixes
the locking to avoid a user-triggerable deadlock.
The second does fix a regression since rc1, and depends on the first fix. It
makes it possible to run guests with large amounts of memory again (~256GB).
Thanks to:
Alexey Kardashevskiy.
-----BEGIN PGP SIGNATURE-----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=oJ9o
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A one-liner to make our Radix MMU support depend on HUGETLB_PAGE. We
use some of the hugetlb inlines (eg. pud_huge()) when operating on the
linear mapping and if they're compiled into empty wrappers we can
corrupt memory.
Then two fixes to our VFIO IOMMU code. The first is not a regression
but fixes the locking to avoid a user-triggerable deadlock.
The second does fix a regression since rc1, and depends on the first
fix. It makes it possible to run guests with large amounts of memory
again (~256GB).
Thanks to Alexey Kardashevskiy"
* tag 'powerpc-5.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm_iommu: Allow pinning large regions
powerpc/mm_iommu: Fix potential deadlock
powerpc/mm/radix: Make Radix require HUGETLB_PAGE
-----BEGIN PGP SIGNATURE-----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=p7B3
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20190428' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A set of io_uring fixes that should go into this release. In
particular, this contains:
- The mutex lock vs ctx ref count fix (me)
- Removal of a dead variable (me)
- Two race fixes (Stefan)
- Ring head/tail condition fix for poll full SQ detection (Stefan)"
* tag 'for-linus-20190428' of git://git.kernel.dk/linux-block:
io_uring: remove 'state' argument from io_{read,write} path
io_uring: fix poll full SQ detection
io_uring: fix race condition when sq threads goes sleeping
io_uring: fix race condition reading SQ entries
io_uring: fail io_uring_register(2) on a dying io_uring instance
One core bug fix and a few driver ones
- FRWR memory registration for hfi1/qib didn't work with with some iovas
causing a NFSoRDMA failure regression due to a fix in the NFS side
- A command flow error in mlx5 allowed user space to send a corrupt
command (and also smash the kernel stack we've since learned)
- Fix a regression and some bugs with device hot unplug that was
discovered while reviewing Andrea's patches
- hns has a failure if the user asks for certain QP configurations
-----BEGIN PGP SIGNATURE-----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=K4Hb
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"One core bug fix and a few driver ones
- FRWR memory registration for hfi1/qib didn't work with with some
iovas causing a NFSoRDMA failure regression due to a fix in the NFS
side
- A command flow error in mlx5 allowed user space to send a corrupt
command (and also smash the kernel stack we've since learned)
- Fix a regression and some bugs with device hot unplug that was
discovered while reviewing Andrea's patches
- hns has a failure if the user asks for certain QP configurations"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/hns: Bugfix for mapping user db
RDMA/ucontext: Fix regression with disassociate
RDMA/mlx5: Use rdma_user_map_io for mapping BAR pages
RDMA/mlx5: Do not allow the user to write to the clock page
IB/mlx5: Fix scatter to CQE in DCT QP creation
IB/rdmavt: Fix frwr memory registration
dmaengine fixes for v5.1-rc7
- fix for wrong register use in mediatek driver
- fix in sh driver for glitch is tx_status and treating 0 a valid
reside for cyclic
- fix in bcm driver for using right memory allocation flag
-----BEGIN PGP SIGNATURE-----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=qu54
-----END PGP SIGNATURE-----
Merge tag 'dmaengine-fix-5.1-rc7' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
- fix for wrong register use in mediatek driver
- fix in sh driver for glitch is tx_status and treating 0 a valid
residue for cyclic
- fix in bcm driver for using right memory allocation flag
* tag 'dmaengine-fix-5.1-rc7' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: mediatek-cqdma: fix wrong register usage in mtk_cqdma_start
dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status
dmaengine: sh: rcar-dmac: With cyclic DMA residue 0 is valid
dmaengine: bcm2835: Avoid GFP_KERNEL in device_prep_slave_sg
Pull input fixes from Dmitry Torokhov:
"Just a couple of fixups for Synaptics RMI4 driver and allowing
snvs_pwrkey to be selected on more boards"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - write config register values to the right offset
Input: synaptics-rmi4 - fix possible double free
Input: snvs_pwrkey - make it depend on ARCH_MXC
Pull x86 fixes from Ingo Molnar:
- Fix an early boot crash in the RSDP parsing code by effectively
turning off the parsing call - we ran out of time but want to fix the
regression. The more involved fix is being worked on.
- Fix a crash that can trigger in the kmemlek code.
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix a crash with kmemleak_scan()
x86/boot: Disable RSDP parsing temporarily
Pull scheduler fix from Ingo Molnar:
"Fix a division by zero bug that can trigger in the NUMA placement
code"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/numa: Fix a possible divide-by-zero
Pull perf fix from Ingo Molnar:
"A cstate event enumeration fix for Kaby/Coffee Lake CPUs"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Update KBL Package C-state events to also include PC8/PC9/PC10 counters
This way, slhc_free() accepts what slhc_init() returns, whether that is
an error or not.
In particular, the pattern in sl_alloc_bufs() is
slcomp = slhc_init(16, 16);
...
slhc_free(slcomp);
for the error handling path, and rather than complicate that code, just
make it ok to always free what was returned by the init function.
That's what the code used to do before commit 4ab42d78e3 ("ppp, slip:
Validate VJ compression slot parameters completely") when slhc_init()
just returned NULL for the error case, with no actual indication of the
details of the error.
Reported-by: syzbot+45474c076a4927533d2e@syzkaller.appspotmail.com
Fixes: 4ab42d78e3 ("ppp, slip: Validate VJ compression slot parameters completely")
Acked-by: Ben Hutchings <ben@decadent.org.uk>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge misc fixes from Andrew Morton:
"9 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
fs/proc/proc_sysctl.c: Fix a NULL pointer dereference
mm/page_alloc.c: fix never set ALLOC_NOFRAGMENT flag
mm/page_alloc.c: avoid potential NULL pointer dereference
mm, page_alloc: always use a captured page regardless of compaction result
mm: do not boost watermarks to avoid fragmentation for the DISCONTIG memory model
lib/test_vmalloc.c: do not create cpumask_t variable on stack
lib/Kconfig.debug: fix build error without CONFIG_BLOCK
zram: pass down the bvec we need to read into in the work struct
mm/memory_hotplug.c: drop memory device reference after find_memory_block()
Currently any changed config register values don't take effect, as the
function to write them back is called with the wrong register offset.
Fixes: ff8f83708b (Input: synaptics-rmi4 - add support for 2D
sensors and F11)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
- keep the tail of an unaligned initrd reserved
- adjust ftrace_make_call() to deal with the relative nature of PLTs
-----BEGIN PGP SIGNATURE-----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=0qQL
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- keep the tail of an unaligned initrd reserved
- adjust ftrace_make_call() to deal with the relative nature of PLTs
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/module: ftrace: deal with place relative nature of PLTs
arm64: mm: Ensure tail of unaligned initrd is reserved
- Use "nosteal" for ring buffer splice pages
- Memory leak fix in error path of trace_pid_write()
- Fix preempt_enable_no_resched() (use preempt_enable()) in ring buffer code
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCXMMoghQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qmB1AQDfpVxYxcmxibBBAM6fZyILYpKqDWmy
ut6gHZ+GHhQT4AEAwSRsC6V4yO3d5dJFpkcQXUj1v+Ip9XU+dv//s8O6tAI=
=LsG/
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Three tracing fixes:
- Use "nosteal" for ring buffer splice pages
- Memory leak fix in error path of trace_pid_write()
- Fix preempt_enable_no_resched() (use preempt_enable()) in ring
buffer code"
* tag 'trace-v5.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
trace: Fix preempt_enable_no_resched() abuse
tracing: Fix a memory leak by early error exit in trace_pid_write()
tracing: Fix buffer_ref pipe ops
- Fix a bug on the errorpath of gpiochip_add_data_with_key()
- IRQ type setting on the spreadtrum GPIO driver
-----BEGIN PGP SIGNATURE-----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=8FVK
-----END PGP SIGNATURE-----
Merge tag 'gpio-v5.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Not much to say about them, regular fixes:
- Fix a bug on the errorpath of gpiochip_add_data_with_key()
- IRQ type setting on the spreadtrum GPIO driver"
* tag 'gpio-v5.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Fix gpiochip_add_data_with_key() error path
gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC
-----BEGIN PGP SIGNATURE-----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=efvr
-----END PGP SIGNATURE-----
Merge tag 'for-5.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"One patch to fix a crash in io submission path, due to memory
allocation errors.
In short, the multipage bio work that landed in 5.1 caused larger bios
that in turn require larger temporary memory for checksums. The patch
is a workaround, we're going to rework the allocation so it does not
require the vmalloc fallback.
It took a while to identify that it's caused by patches in 5.1 and not
a patchset that did some changes in error handling in the code. I've
tested it on various memory/cpu combinations, it could hit OOM but
does not crash.
The timestamp of the patch is less than a day due to updates in the
changelog, tests were running meanwhile"
* tag 'for-5.1-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: Switch memory allocations in async csum calculation path to kvmalloc
-----BEGIN PGP SIGNATURE-----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=GJRQ
-----END PGP SIGNATURE-----
Merge tag '5.1-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three small SMB3 fixes (all for stable as well): two leaks and a
rename bug"
* tag '5.1-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix page reference leak with readv/writev
cifs: do not attempt cifs operation on smb2+ rename error
cifs: fix memory leak in SMB2_read
Commit 0a79cdad5e ("mm: use alloc_flags to record if kswapd can wake")
removed setting of the ALLOC_NOFRAGMENT flag. Bring it back.
The runtime effect is that ALLOC_NOFRAGMENT behaviour is restored so
that allocations are spread across local zones to avoid fragmentation
due to mixing pageblocks as long as possible.
Link: http://lkml.kernel.org/r/20190423120806.3503-2-aryabinin@virtuozzo.com
Fixes: 0a79cdad5e ("mm: use alloc_flags to record if kswapd can wake")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ac.preferred_zoneref->zone passed to alloc_flags_nofragment() can be NULL.
'zone' pointer unconditionally derefernced in alloc_flags_nofragment().
Bail out on NULL zone to avoid potential crash. Currently we don't see
any crashes only because alloc_flags_nofragment() has another bug which
allows compiler to optimize away all accesses to 'zone'.
Link: http://lkml.kernel.org/r/20190423120806.3503-1-aryabinin@virtuozzo.com
Fixes: 6bb154504f ("mm, page_alloc: spread allocations across zones before introducing fragmentation")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
During the development of commit 5e1f0f098b ("mm, compaction: capture
a page under direct compaction"), a paranoid check was added to ensure
that if a captured page was available after compaction that it was
consistent with the final state of compaction. The intent was to catch
serious programming bugs such as using a stale page pointer and causing
corruption problems.
However, it is possible to get a captured page even if compaction was
unsuccessful if an interrupt triggered and happened to free pages in
interrupt context that got merged into a suitable high-order page. It's
highly unlikely but Li Wang did report the following warning on s390
occuring when testing OOM handling. Note that the warning is slightly
edited for clarity.
WARNING: CPU: 0 PID: 9783 at mm/page_alloc.c:3777 __alloc_pages_direct_compact+0x182/0x190
Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs
lockd grace fscache sunrpc pkey ghash_s390 prng xts aes_s390
des_s390 des_generic sha512_s390 zcrypt_cex4 zcrypt vmur binfmt_misc
ip_tables xfs libcrc32c dasd_fba_mod qeth_l2 dasd_eckd_mod dasd_mod
qeth qdio lcs ctcm ccwgroup fsm dm_mirror dm_region_hash dm_log
dm_mod
CPU: 0 PID: 9783 Comm: copy.sh Kdump: loaded Not tainted 5.1.0-rc 5 #1
This patch simply removes the check entirely instead of trying to be
clever about pages freed from interrupt context. If a serious
programming error was introduced, it is highly likely to be caught by
prep_new_page() instead.
Link: http://lkml.kernel.org/r/20190419085133.GH18914@techsingularity.net
Fixes: 5e1f0f098b ("mm, compaction: capture a page under direct compaction")
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by: Li Wang <liwang@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka reported that commit 1c30844d2d ("mm: reclaim small
amounts of memory when an external fragmentation event occurs") "broke"
memory management on parisc.
The machine is not NUMA but the DISCONTIG model creates three pgdats
even though it's a UMA machine for the following ranges
0) Start 0x0000000000000000 End 0x000000003fffffff Size 1024 MB
1) Start 0x0000000100000000 End 0x00000001bfdfffff Size 3070 MB
2) Start 0x0000004040000000 End 0x00000040ffffffff Size 3072 MB
Mikulas reported:
With the patch 1c30844d2, the kernel will incorrectly reclaim the
first zone when it fills up, ignoring the fact that there are two
completely free zones. Basiscally, it limits cache size to 1GiB.
For example, if I run:
# dd if=/dev/sda of=/dev/null bs=1M count=2048
- with the proper kernel, there should be "Buffers - 2GiB"
when this command finishes. With the patch 1c30844d2, buffers
will consume just 1GiB or slightly more, because the kernel was
incorrectly reclaiming them.
The page allocator and reclaim makes assumptions that pgdats really
represent NUMA nodes and zones represent ranges and makes decisions on
that basis. Watermark boosting for small pgdats leads to unexpected
results even though this would have behaved reasonably on SPARSEMEM.
DISCONTIG is essentially deprecated and even parisc plans to move to
SPARSEMEM so there is no need to be fancy, this patch simply disables
watermark boosting by default on DISCONTIGMEM.
Link: http://lkml.kernel.org/r/20190419094335.GJ18914@techsingularity.net
Fixes: 1c30844d2d ("mm: reclaim small amounts of memory when an external fragmentation event occurs")
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On my "Intel(R) Xeon(R) W-2135 CPU @ 3.70GHz" system(12 CPUs) i get the
warning from the compiler about frame size:
warning: the frame size of 1096 bytes is larger than 1024 bytes [-Wframe-larger-than=]
the size of cpumask_t depends on number of CPUs, therefore just make use
of cpumask_of() in set_cpus_allowed_ptr() as a second argument.
Link: http://lkml.kernel.org/r/20190418193925.9361-1-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Roman Gushchin <guro@fb.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Thomas Garnier <thgarnie@google.com>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If CONFIG_TEST_KMOD is set to M, while CONFIG_BLOCK is not set, XFS and
BTRFS can not be compiled successly.
Link: http://lkml.kernel.org/r/20190410075434.35220-1-yuehaibing@huawei.com
Fixes: d9c6a72d6f ("kmod: add test driver to stress test the module loader")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Joe Lawrence <joe.lawrence@redhat.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When scheduling work item to read page we need to pass down the proper
bvec struct which points to the page to read into. Before this patch it
uses a randomly initialized bvec (only if PAGE_SIZE != 4096) which is
wrong.
Note that without this patch on arch/kernel where PAGE_SIZE != 4096
userspace could read random memory through a zram block device (thought
userspace probably would have no control on the address being read).
Link: http://lkml.kernel.org/r/20190408183219.26377-1-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Right now we are using find_memory_block() to get the node id for the
pfn range to online. We are missing to drop a reference to the memory
block device. While the device still gets unregistered via
device_unregister(), resulting in no user visible problem, the device is
never released via device_release(), resulting in a memory leak. Fix
that by properly using a put_device().
Link: http://lkml.kernel.org/r/20190411110955.1430-1-david@redhat.com
Fixes: d0dc12e86b ("mm/memory_hotplug: optimize memory hotplug")
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Pankaj Gupta <pagupta@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Arun KS <arunks@codeaurora.org>
Cc: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Unless the very next line is schedule(), or implies it, one must not use
preempt_enable_no_resched(). It can cause a preemption to go missing and
thereby cause arbitrary delays, breaking the PREEMPT=y invariant.
Link: http://lkml.kernel.org/r/20190423200318.GY14281@hirez.programming.kicks-ass.net
Cc: Waiman Long <longman@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: the arch/x86 maintainers <x86@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: stable@vger.kernel.org
Fixes: 2c2d7329d8 ("tracing/ftrace: use preempt_enable_no_resched_notrace in ring_buffer_time_stamp()")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
In trace_pid_write(), the buffer for trace parser is allocated through
kmalloc() in trace_parser_get_init(). Later on, after the buffer is used,
it is then freed through kfree() in trace_parser_put(). However, it is
possible that trace_pid_write() is terminated due to unexpected errors,
e.g., ENOMEM. In that case, the allocated buffer will not be freed, which
is a memory leak bug.
To fix this issue, free the allocated buffer when an error is encountered.
Link: http://lkml.kernel.org/r/1555726979-15633-1-git-send-email-wang6495@umn.edu
Fixes: f4d34a87e9 ("tracing: Use pid bitmap instead of a pid array for set_event_pid")
Cc: stable@vger.kernel.org
Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This fixes multiple issues in buffer_pipe_buf_ops:
- The ->steal() handler must not return zero unless the pipe buffer has
the only reference to the page. But generic_pipe_buf_steal() assumes
that every reference to the pipe is tracked by the page's refcount,
which isn't true for these buffers - buffer_pipe_buf_get(), which
duplicates a buffer, doesn't touch the page's refcount.
Fix it by using generic_pipe_buf_nosteal(), which refuses every
attempted theft. It should be easy to actually support ->steal, but the
only current users of pipe_buf_steal() are the virtio console and FUSE,
and they also only use it as an optimization. So it's probably not worth
the effort.
- The ->get() and ->release() handlers can be invoked concurrently on pipe
buffers backed by the same struct buffer_ref. Make them safe against
concurrency by using refcount_t.
- The pointers stored in ->private were only zeroed out when the last
reference to the buffer_ref was dropped. As far as I know, this
shouldn't be necessary anyway, but if we do it, let's always do it.
Link: http://lkml.kernel.org/r/20190404215925.253531-1-jannh@google.com
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Fixes: 73a757e631 ("ring-buffer: Return reader page back into existing ring buffer")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
- Fix the DP color space conversion matrix setup to avoid bugs where
disabling the overlay plane while both primary and overlay plane are
routed via the CSC unit would not reconfigure the CSC routing
properly, leaving the display in a nonworking state, or the CSC
setting from a previously set mode would be left behind, causing
wrong colors when reenabling the display in certain configurations.
-----BEGIN PGP SIGNATURE-----
iI0EABYIADUWIQRRO6F6WdpH1R0vGibVhaclGDdiwAUCXMF1RRcccC56YWJlbEBw
ZW5ndXRyb25peC5kZQAKCRDVhaclGDdiwLv0AQDGnqD259vga1dQqef4qOzOOCVn
ttvc6+2C4dMQGmJf5QEA9HMkVHmC9DyUYtFnI9WS2x7BZKNtLLNK0O7wvWQ+Kw0=
=v8Rr
-----END PGP SIGNATURE-----
Merge tag 'imx-drm-fixes-2019-04-25' of git://git.pengutronix.de/pza/linux into drm-fixes
drm/imx: fix DP CSC handling
- Fix the DP color space conversion matrix setup to avoid bugs where
disabling the overlay plane while both primary and overlay plane are
routed via the CSC unit would not reconfigure the CSC routing
properly, leaving the display in a nonworking state, or the CSC
setting from a previously set mode would be left behind, causing
wrong colors when reenabling the display in certain configurations.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1556183136.2271.3.camel@pengutronix.de
- vc4: Fix a compilation error and memory leak
- dw-hdmi: Fix an overflow on Rockchip and SCDC configuration
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXMG1sgAKCRDj7w1vZxhR
xcD3AP9EFGmXMR0UemGsEwtDHKSPW9Z2Gw89bxIQW5LNb/gRxAD/aeTqFtSSg2bj
gI/+U/oDoDRgWySpTeiVkolc7vDyqAI=
=J3GS
-----END PGP SIGNATURE-----
Merge tag 'drm-misc-fixes-2019-04-25' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- sun4i: Fix module loading / unloading
- vc4: Fix a compilation error and memory leak
- dw-hdmi: Fix an overflow on Rockchip and SCDC configuration
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425132739.pngmfiqucqmulxkz@flea
to avoid enabling FEC without DSC.
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJcwNk3AAoJEPpiX2QO6xPKffsH+QEqA8FzEiwObykzVZ8zqhe1
iJn4BtqdLtACUOpcz9AfduVyos0ScClb1Ulgzo5A6Vi+811DGfK9Kc7k6PEjb/q8
HPXWOh1sFsz8tcr3tE24b+I1ijsPZGPAvmauYLv0tNS92QJOyGzM1u1O4Wt6HmjB
04h0BAs1AvO/yh6nTG31+Uca/uT0BbFWEJxyokrMDGAZqv8Ou0z3bFj7hozjNwh4
Q3mRQu+2CGjIkJbh/XCNuRJ0l/WgkKKfznThUoOxHr3ysDfwYzMTDzlYzPkVrSaN
NRe+J7IIBuCWMAHOOjhwJX5qeQGM0lsWzQ+6EsjrOquxOg/7tmoTFiq+DT/Yqik=
=1xKs
-----END PGP SIGNATURE-----
Merge tag 'drm-intel-fixes-2019-04-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
A fix for display lanes calculation for BXT and a protection
to avoid enabling FEC without DSC.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190424215359.GA26100@intel.com
sched_clock_cpu() may not be consistent between CPUs. If a task
migrates to another CPU, then se.exec_start is set to that CPU's
rq_clock_task() by update_stats_curr_start(). Specifically, the new
value might be before the old value due to clock skew.
So then if in numa_get_avg_runtime() the expression:
'now - p->last_task_numa_placement'
ends up as -1, then the divider '*period + 1' in task_numa_placement()
is 0 and things go bang. Similar to update_curr(), check if time goes
backwards to avoid this.
[ peterz: Wrote new changelog. ]
[ mingo: Tweaked the code comment. ]
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: cj.chengjian@huawei.com
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20190425080016.GX11158@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Both are old issues, marked for stable.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAlzB8RoTHGlkcnlvbW92
QGdtYWlsLmNvbQAKCRBKf944AhHzix4BCACfaFPdToRlxFa0oYP8yeoznkVNjldX
yr00KWc1xNZf0G92REk3zZP1+OfL0GIUbbBwe82uT0QLKcHG7l9ioM5qPwZo5uLv
DiV6iEN7jf84H0YmzB2iVJAZp6T85veFjcXOJ2sq0AtoqmUpdcDqm9Ov40oCvxUs
aKHsxUQnrOkwF5mtQmOG0CZsl9+pq0c/OpCnc2i6f78KgpWKMzH0gsL4mTM7GLzL
LxtbvHws3rxG5HtnWcJgPnv1D0bdcEGgckXWTK9NGYZmWYTuZRwROSrx8lNhkant
+1bQPrpzyB6W8rN0wSrWlPkmp71Qqo43Eop13r5V34bU04zSr2bI+PUh
=8A02
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-5.1-rc7' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"dentry name handling fixes from Jeff and a memory leak fix from Zheng.
Both are old issues, marked for stable"
* tag 'ceph-for-5.1-rc7' of git://github.com/ceph/ceph-client:
ceph: fix ci->i_head_snapc leak
ceph: handle the case where a dentry has been renamed on outstanding req
ceph: ensure d_name stability in ceph_dentry_hash()
ceph: only use d_name directly when parent is locked
Pull crypto fixes from Herbert Xu:
"This fixes a bug in xts and lrw where they may sleep in an atomic
context"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: lrw - Fix atomic sleep when walking skcipher
crypto: xts - Fix atomic sleep when walking skcipher
When the maximum send wr delivered by the user is zero, the qp does not
have a sq.
When allocating the sq db buffer to store the user sq pi pointer and map
it to the kernel mode, max_send_wr is used as the trigger condition, while
the kernel does not consider the max_send_wr trigger condition when
mapmping db. It will cause sq record doorbell map fail and create qp fail.
The failed print information as follows:
hns3 0000:7d:00.1: Send cmd: tail - 418, opcode - 0x8504, flag - 0x0011, retval - 0x0000
hns3 0000:7d:00.1: Send cmd: 0xe59dc000 0x00000000 0x00000000 0x00000000 0x00000116 0x0000ffff
hns3 0000:7d:00.1: sq record doorbell map failed!
hns3 0000:7d:00.1: Create RC QP failed
Fixes: 0425e3e6e0 ("RDMA/hns: Support flush cqe for hip08 in kernel space")
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
David Sterba