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Define and set it when appropriate, and use it consistently in the
function rather than using io_op_defs[opcode].
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Pull overlayfs updates from Miklos Szeredi:
- Support idmapped layers in overlayfs (Christian Brauner)
- Add a fix to exportfs that is relevant to open_by_handle_at(2) as
well
- Introduce new lookup helpers that allow passing mnt_userns into
inode_permission()
* tag 'ovl-update-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: support idmapped layers
ovl: handle idmappings in ovl_xattr_{g,s}et()
ovl: handle idmappings in layer open helpers
ovl: handle idmappings in ovl_permission()
ovl: use ovl_copy_{real,upper}attr() wrappers
ovl: store lower path in ovl_inode
ovl: handle idmappings for layer lookup
ovl: handle idmappings for layer fileattrs
ovl: use ovl_path_getxattr() wrapper
ovl: use ovl_lookup_upper() wrapper
ovl: use ovl_do_notify_change() wrapper
ovl: pass layer mnt to ovl_open_realfile()
ovl: pass ofs to setattr operations
ovl: handle idmappings in creation operations
ovl: add ovl_upper_mnt_userns() wrapper
ovl: pass ofs to creation operations
ovl: use wrappers to all vfs_*xattr() calls
exportfs: support idmapped mounts
fs: add two trivial lookup helpers
Pull m68knommu updates from Greg Ungerer:
"A collection of changes to add elf-fdpic loader support for m68k.
Also a collection of various fixes. They include typo corrections,
undefined symbol compilation fixes, removal of the ISA_DMA_API support
and removal of unused code.
Summary:
- correctly set up ZERO_PAGE pointer
- drop ISA_DMA_API support
- fix comment typos
- fixes for undefined symbols
- remove unused code and variables
- elf-fdpic loader support for m68k"
* tag 'm68knommu-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: fix 68000 CPU link with no platform selected
m68k: removed unused "mach_get_ss"
m68knommu: fix undefined reference to `mach_get_rtc_pll'
m68knommu: fix undefined reference to `_init_sp'
m68knommu: allow elf_fdpic loader to be selected
m68knommu: add definitions to support elf_fdpic program loader
m68knommu: implement minimal regset support
m68knommu: use asm-generic/mmu.h for nommu setups
m68k: fix typos in comments
m68k: coldfire: drop ISA_DMA_API support
m68knommu: set ZERO_PAGE() to the allocated zeroed page
This series contains a two key cleanups for the new LARP code. Most
of it is refactoring and tweaking the code that creates kernel log
messages about enabling and disabling features -- we should be
warning about LARP being turned on once per mount, instead of once
per insmod cycle; we shouldn't be spamming the logs so aggressively
about turning *off* log incompat features.
The second part of the series refactors the LARP code responsible
for getting (and releasing) permission to use xattr log items. The
implementation code doesn't belong in xfs_log.c, and calls to
logging functions don't belong in libxfs -- they really should be
done by the VFS implementation functions before they start calling
into libraries.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Dave Chinner <david@fromorbit.com>
As part of solving the memory leaks and UAF problems in the new LARP
code, kmemleak also reported that log recovery will leak the table
used to hash buffer cancellations if the recovery fails. Fix this
problem by creating alloc/free helpers that initialize and free the
hashtable contents correctly.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Dave Chinner <david@fromorbit.com>
For some reason commit 9a5280b312 ("xfs: reorder iunlink remove
operation in xfs_ifree") replaced a jump to the exit path in the
event of an xfs_difree() error with a direct return, which skips
releasing the perag reference acquired at the top of the function.
Restore the original code to drop the reference on error.
Fixes: 9a5280b312 ("xfs: reorder iunlink remove operation in xfs_ifree")
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
erofs over fscache doesn't support the compressed layout yet. It will
cause NULL crash if there are compressed inodes contained when working
in fscache mode.
So far in the erofs based container image distribution scenarios
(RAFS v6), the compressed RAFS v6 images are downloaded and then
decompressed on demand as an uncompressed erofs image. Then the erofs
image is mounted in fscache mode for containers to use. IOWs, currently
compressed data is decompressed on the userspace side instead and
uncompressed erofs images will be finally cached.
The fscache support for the compressed layout is still under
development and it will be used for runtime decompression feature.
Anyway, to avoid the potential crash, let's leave the compressed inodes
unsupported in fscache mode until we support it later.
Fixes: 1442b02b66 ("erofs: implement fscache-based data read for non-inline layout")
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20220526010344.118493-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Pull powerpc updates from Michael Ellerman:
- Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT)
- Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later)
- Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ
- Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later
- Drop support for system call instruction emulation
- Many other small features and fixes
Thanks to Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas
Sanjaya, Bjorn Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian
King, Daniel Axtens, Dwaipayan Ray, Fabiano Rosas, Finn Thain, Frank
Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu Hua, Haowen Bai,
Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing
Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof
Kozlowski, Laurent Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes,
Miaoqian Lin, Minghao Chi, Nathan Chancellor, Naveen N. Rao, Nicholas
Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár, Paul Mackerras,
Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib
Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang
wangx, Xiaomeng Tong, Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing,
Yu Kuai, Zheng Bin, Zou Wei, and Zucheng Zheng.
* tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (200 commits)
powerpc/64: Include cache.h directly in paca.h
powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set
powerpc/xics: Include missing header
powerpc/powernv/pci: Drop VF MPS fixup
powerpc/fsl_book3e: Don't set rodata RO too early
powerpc/microwatt: Add mmu bits to device tree
powerpc/powernv/flash: Check OPAL flash calls exist before using
powerpc/powermac: constify device_node in of_irq_parse_oldworld()
powerpc/powermac: add missing g5_phy_disable_cpu1() declaration
selftests/powerpc/pmu: fix spelling mistake "mis-match" -> "mismatch"
powerpc: Enable the DAWR on POWER9 DD2.3 and above
powerpc/64s: Add CPU_FTRS_POWER10 to ALWAYS mask
powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask
powerpc: Fix all occurences of "the the"
selftests/powerpc/pmu/ebb: remove fixed_instruction.S
powerpc/platforms/83xx: Use of_device_get_match_data()
powerpc/eeh: Drop redundant spinlock initialization
powerpc/iommu: Add missing of_node_put in iommu_init_early_dart
powerpc/pseries/vas: Call misc_deregister if sysfs init fails
powerpc/papr_scm: Fix leaking nvdimm_events_map elements
...
Remove the condition that the count of sges
must be greater than or equal to
SMB_DIRECT_MAX_SEND_SGES(8).
Because ksmbd needs sges only for SMB direct
header, SMB2 transform header, SMB2 response,
and optional payload.
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Pull cifs client updates from Steve French:
- multichannel fixes to improve reconnect after network failure
- improved caching of root directory contents (extending benefit of
directory leases)
- two DFS fixes
- three fixes for improved debugging
- an NTLMSSP fix for mounts t0 older servers
- new mount parm to allow disabling creating sparse files
- various cleanup fixes and minor fixes pointed out by coverity
* tag '5.19-rc-smb3-client-fixes-updated' of git://git.samba.org/sfrench/cifs-2.6: (24 commits)
smb3: remove unneeded null check in cifs_readdir
cifs: fix ntlmssp on old servers
cifs: cache the dirents for entries in a cached directory
cifs: avoid parallel session setups on same channel
cifs: use new enum for ses_status
cifs: do not use tcpStatus after negotiate completes
smb3: add mount parm nosparse
smb3: don't set rc when used and unneeded in query_info_compound
smb3: check for null tcon
cifs: fix minor compile warning
Add various fsctl structs
Add defines for various newer FSCTLs
smb3: add trace point for oplock not found
cifs: return the more nuanced writeback error on close()
smb3: add trace point for lease not found issue
cifs: smbd: fix typo in comment
cifs: set the CREATE_NOT_FILE when opening the directory in use_cached_dir()
cifs: check for smb1 in open_cached_dir()
cifs: move definition of cifs_fattr earlier in cifsglob.h
cifs: print TIDs as hex
...
Pull jfs updates from David Kleikamp:
"One bug fix and some code cleanup"
* tag 'jfs-5.19' of https://github.com/kleikamp/linux-shaggy:
fs/jfs: Remove dead code
fs: jfs: fix possible NULL pointer dereference in dbFree()
Pull libnvdimm and DAX updates from Dan Williams:
"New support for clearing memory errors when a file is in DAX mode,
alongside with some other fixes and cleanups.
Previously it was only possible to clear these errors using a truncate
or hole-punch operation to trigger the filesystem to reallocate the
block, now, any page aligned write can opportunistically clear errors
as well.
This change spans x86/mm, nvdimm, and fs/dax, and has received the
appropriate sign-offs. Thanks to Jane for her work on this.
Summary:
- Add support for clearing memory error via pwrite(2) on DAX
- Fix 'security overwrite' support in the presence of media errors
- Miscellaneous cleanups and fixes for nfit_test (nvdimm unit tests)"
* tag 'libnvdimm-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
pmem: implement pmem_recovery_write()
pmem: refactor pmem_clear_poison()
dax: add .recovery_write dax_operation
dax: introduce DAX_RECOVERY_WRITE dax access mode
mce: fix set_mce_nospec to always unmap the whole page
x86/mce: relocate set{clear}_mce_nospec() functions
acpi/nfit: rely on mce->misc to determine poison granularity
testing: nvdimm: asm/mce.h is not needed in nfit.c
testing: nvdimm: iomap: make __nfit_test_ioremap a macro
nvdimm: Allow overwrite in the presence of disabled dimms
tools/testing/nvdimm: remove unneeded flush_workqueue
In order to garantee migrated data be persisted during checkpoint,
otherwise out-of-order persistency between data and node may cause
data corruption after SPOR.
Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
We have define 'fi' at the begin of the functions, just use it,
rather than use F2FS_I(inode) again.
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
[Jaegeuk Kim: replace sbi]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Pull misc updates from Andrew Morton:
"The non-MM patch queue for this merge window.
Not a lot of material this cycle. Many singleton patches against
various subsystems. Most notably some maintenance work in ocfs2
and initramfs"
* tag 'mm-nonmm-stable-2022-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (65 commits)
kcov: update pos before writing pc in trace function
ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock
ocfs2: dlmfs: don't clear USER_LOCK_ATTACHED when destroying lock
fs/ntfs: remove redundant variable idx
fat: remove time truncations in vfat_create/vfat_mkdir
fat: report creation time in statx
fat: ignore ctime updates, and keep ctime identical to mtime in memory
fat: split fat_truncate_time() into separate functions
MAINTAINERS: add Muchun as a memcg reviewer
proc/sysctl: make protected_* world readable
ia64: mca: drop redundant spinlock initialization
tty: fix deadlock caused by calling printk() under tty_port->lock
relay: remove redundant assignment to pointer buf
fs/ntfs3: validate BOOT sectors_per_clusters
lib/string_helpers: fix not adding strarray to device's resource list
kernel/crash_core.c: remove redundant check of ck_cmdline
ELF, uapi: fixup ELF_ST_TYPE definition
ipc/mqueue: use get_tree_nodev() in mqueue_get_tree()
ipc: update semtimedop() to use hrtimer
ipc/sem: remove redundant assignments
...
pipe_resize_ring() needs to take the pipe->rd_wait.lock spinlock to
prevent post_one_notification() from trying to insert into the ring
whilst the ring is being replaced.
The occupancy check must be done after the lock is taken, and the lock
must be taken after the new ring is allocated.
The bug can lead to an oops looking something like:
BUG: KASAN: use-after-free in post_one_notification.isra.0+0x62e/0x840
Read of size 4 at addr ffff88801cc72a70 by task poc/27196
...
Call Trace:
post_one_notification.isra.0+0x62e/0x840
__post_watch_notification+0x3b7/0x650
key_create_or_update+0xb8b/0xd20
__do_sys_add_key+0x175/0x340
__x64_sys_add_key+0xbe/0x140
do_syscall_64+0x5c/0xc0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Reported by Selim Enes Karaduman @Enesdex working with Trend Micro Zero
Day Initiative.
Fixes: c73be61ced ("pipe: Add general notification queue support")
Reported-by: zdi-disclosures@trendmicro.com # ZDI-CAN-17291
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Coverity pointed out an unneeded check.
Addresses-Coverity: 1518030 ("Null pointer dereferences")
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This fixes the following sparse warnings:
fs/ubifs/xattr.c:680:58: warning: Using plain integer as NULL pointer
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Use kzalloc rather than duplicating its implementation, which
makes code simple and easy to understand.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
[rw: Fixed printk string]
Signed-off-by: Richard Weinberger <richard@nod.at>
Pull rdma updates from Jason Gunthorpe:
"Small collection of incremental improvement patches:
- Minor code cleanup patches, comment improvements, etc from static
tools
- Clean the some of the kernel caps, reducing the historical stealth
uAPI leftovers
- Bug fixes and minor changes for rdmavt, hns, rxe, irdma
- Remove unimplemented cruft from rxe
- Reorganize UMR QP code in mlx5 to avoid going through the IB verbs
layer
- flush_workqueue(system_unbound_wq) removal
- Ensure rxe waits for objects to be unused before allowing the core
to free them
- Several rc quality bug fixes for hfi1"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (67 commits)
RDMA/rtrs-clt: Fix one kernel-doc comment
RDMA/hfi1: Remove all traces of diagpkt support
RDMA/hfi1: Consolidate software versions
RDMA/hfi1: Remove pointless driver version
RDMA/hfi1: Fix potential integer multiplication overflow errors
RDMA/hfi1: Prevent panic when SDMA is disabled
RDMA/hfi1: Prevent use of lock before it is initialized
RDMA/rxe: Fix an error handling path in rxe_get_mcg()
IB/core: Fix typo in comment
RDMA/core: Fix typo in comment
IB/hf1: Fix typo in comment
IB/qib: Fix typo in comment
IB/iser: Fix typo in comment
RDMA/mlx4: Avoid flush_scheduled_work() usage
IB/isert: Avoid flush_scheduled_work() usage
RDMA/mlx5: Remove duplicate pointer assignment in mlx5_ib_alloc_implicit_mr()
RDMA/qedr: Remove unnecessary synchronize_irq() before free_irq()
RDMA/hns: Use hr_reg_read() instead of remaining roce_get_xxx()
RDMA/hns: Use hr_reg_xxx() instead of remaining roce_set_xxx()
RDMA/irdma: Add SW mechanism to generate completions on error
...
Pull nfsd updates from Chuck Lever:
"We introduce 'courteous server' in this release. Previously NFSD would
purge open and lock state for an unresponsive client after one lease
period (typically 90 seconds). Now, after one lease period, another
client can open and lock those files and the unresponsive client's
lease is purged; otherwise if the unresponsive client's open and lock
state is uncontended, the server retains that open and lock state for
up to 24 hours, allowing the client's workload to resume after a
lengthy network partition.
A longstanding issue with NFSv4 file creation is also addressed.
Previously a file creation can fail internally, returning an error to
the client, but leave the newly created file in place as an artifact.
The file creation code path has been reorganized so that internal
failures and race conditions are less likely to result in an unwanted
file creation.
A fault injector has been added to help exercise paths that are run
during kernel metadata cache invalidation. These caches contain
information maintained by user space about exported filesystems. Many
of our test workloads do not trigger cache invalidation.
There is one patch that is needed to support PREEMPT_RT and a fix for
an ancient 'sleep while spin-locked' splat that seems to have become
easier to hit since v5.18-rc3"
* tag 'nfsd-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (36 commits)
NFSD: nfsd_file_put() can sleep
NFSD: Add documenting comment for nfsd4_release_lockowner()
NFSD: Modernize nfsd4_release_lockowner()
NFSD: Fix possible sleep during nfsd4_release_lockowner()
nfsd: destroy percpu stats counters after reply cache shutdown
nfsd: Fix null-ptr-deref in nfsd_fill_super()
nfsd: Unregister the cld notifier when laundry_wq create failed
SUNRPC: Use RMW bitops in single-threaded hot paths
NFSD: Clean up the show_nf_flags() macro
NFSD: Trace filecache opens
NFSD: Move documenting comment for nfsd4_process_open2()
NFSD: Fix whitespace
NFSD: Remove dprintk call sites from tail of nfsd4_open()
NFSD: Instantiate a struct file when creating a regular NFSv4 file
NFSD: Clean up nfsd_open_verified()
NFSD: Remove do_nfsd_create()
NFSD: Refactor NFSv4 OPEN(CREATE)
NFSD: Refactor NFSv3 CREATE
NFSD: Refactor nfsd_create_setattr()
NFSD: Avoid calling fh_drop_write() twice in do_nfsd_create()
...
The LARP patchset added an awkward coupling point between libxfs and
what would be libxlog, if the XFS log were actually its own library.
Move the code that sets up logged xattr updates out of libxfs and into
xfs_xattr.c so that libxfs no longer has to know about xlog_* functions.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
The LARP patchset added an awkward coupling point between libxfs and
what would be libxlog, if the XFS log were actually its own library.
Move the code that enables logged xattr updates out of "lib"xlog and into
xfs_xattr.c so that it no longer has to know about xlog_* functions.
While we're at it, give xfs_xattr.c its own header file.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Since LARP is an experimental debug-only feature, we should try to warn
about it being in use once per mount, not once per reboot.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Currently, we don't have a consistent story around logging when an
EXPERIMENTAL feature gets turned on at runtime -- online fsck and shrink
log a message once per day across all mounts, and the recently merged
LARP mode only ever does it once per insmod cycle or reboot.
Because EXPERIMENTAL tags are supposed to go away eventually, convert
the existing daily warnings into state flags that travel with the mount,
and warn once per mount. Making this an opstate flag means that we'll
be able to capture the experimental usage in the ftrace output too.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
There's no need to spam the logs every time we clear the log incompat
flags -- if someone is periodically using one of these features, they'll
be cleared every time the log tries to clean itself, which can get
pretty chatty:
$ dmesg | grep -i clear
[ 5363.894711] XFS (sdd): Clearing log incompat feature flags.
[ 5365.157516] XFS (sdd): Clearing log incompat feature flags.
[ 5369.388543] XFS (sdd): Clearing log incompat feature flags.
[ 5371.281246] XFS (sdd): Clearing log incompat feature flags.
These aren't high value messages either -- nothing's gone wrong, and
nobody's trying anything tricky.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
While we're messing around with how recovery allocates and frees the
buffer cancellation table, convert the allocation to use kmalloc_array
instead of the old kmem_alloc APIs, and make it handle a null return,
even though that's not likely.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Move the code that allocates and frees the buffer cancellation tables
used by log recovery into the file that actually uses the tables. This
is a precursor to some cleanups and a memory leak fix.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
The recent patch to improve btree cycle checking caused a regression
when I rebased the in-memory btree branch atop the 5.19 for-next branch,
because in-memory short-pointer btrees do not have AG numbers. This
produced the following complaint from kmemleak:
unreferenced object 0xffff88803d47dde8 (size 264):
comm "xfs_io", pid 4889, jiffies 4294906764 (age 24.072s)
hex dump (first 32 bytes):
90 4d 0b 0f 80 88 ff ff 00 a0 bd 05 80 88 ff ff .M..............
e0 44 3a a0 ff ff ff ff 00 df 08 06 80 88 ff ff .D:.............
backtrace:
[<ffffffffa0388059>] xfbtree_dup_cursor+0x49/0xc0 [xfs]
[<ffffffffa029887b>] xfs_btree_dup_cursor+0x3b/0x200 [xfs]
[<ffffffffa029af5d>] __xfs_btree_split+0x6ad/0x820 [xfs]
[<ffffffffa029b130>] xfs_btree_split+0x60/0x110 [xfs]
[<ffffffffa029f6da>] xfs_btree_make_block_unfull+0x19a/0x1f0 [xfs]
[<ffffffffa029fada>] xfs_btree_insrec+0x3aa/0x810 [xfs]
[<ffffffffa029fff3>] xfs_btree_insert+0xb3/0x240 [xfs]
[<ffffffffa02cb729>] xfs_rmap_insert+0x99/0x200 [xfs]
[<ffffffffa02cf142>] xfs_rmap_map_shared+0x192/0x5f0 [xfs]
[<ffffffffa02cf60b>] xfs_rmap_map_raw+0x6b/0x90 [xfs]
[<ffffffffa0384a85>] xrep_rmap_stash+0xd5/0x1d0 [xfs]
[<ffffffffa0384dc0>] xrep_rmap_visit_bmbt+0xa0/0xf0 [xfs]
[<ffffffffa0384fb6>] xrep_rmap_scan_iext+0x56/0xa0 [xfs]
[<ffffffffa03850d8>] xrep_rmap_scan_ifork+0xd8/0x160 [xfs]
[<ffffffffa0385195>] xrep_rmap_scan_inode+0x35/0x80 [xfs]
[<ffffffffa03852ee>] xrep_rmap_find_rmaps+0x10e/0x270 [xfs]
I noticed that xfs_btree_insrec has a bunch of debug code that return
out of the function immediately, without freeing the "new" btree cursor
that can be returned when _make_block_unfull calls xfs_btree_split. Fix
the error return in this function to free the btree cursor.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
xfs/434 and xfs/436 have been reporting occasional memory leaks of
xfs_dquot objects. These tests themselves were the messenger, not the
culprit, since they unload the xfs module, which trips the slub
debugging code while tearing down all the xfs slab caches:
=============================================================================
BUG xfs_dquot (Tainted: G W ): Objects remaining in xfs_dquot on __kmem_cache_shutdown()
-----------------------------------------------------------------------------
Slab 0xffffea000606de00 objects=30 used=5 fp=0xffff888181b78a78 flags=0x17ff80000010200(slab|head|node=0|zone=2|lastcpupid=0xfff)
CPU: 0 PID: 3953166 Comm: modprobe Tainted: G W 5.18.0-rc6-djwx #rc6 d5824be9e46a2393677bda868f9b154d917ca6a7
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20171121_152543-x86-ol7-builder-01.us.oracle.com-4.el7.1 04/01/2014
Since we don't generally rmmod the xfs module between fstests, this
means that xfs/434 is really just the canary in the coal mine --
something leaked a dquot, but we don't know who. After days of pounding
on fstests with kmemleak enabled, I finally got it to spit this out:
unreferenced object 0xffff8880465654c0 (size 536):
comm "u10:4", pid 88, jiffies 4294935810 (age 29.512s)
hex dump (first 32 bytes):
60 4a 56 46 80 88 ff ff 58 ea e4 5c 80 88 ff ff `JVF....X..\....
00 e0 52 49 80 88 ff ff 01 00 01 00 00 00 00 00 ..RI............
backtrace:
[<ffffffffa0740f6c>] xfs_dquot_alloc+0x2c/0x530 [xfs]
[<ffffffffa07443df>] xfs_qm_dqread+0x6f/0x330 [xfs]
[<ffffffffa07462a2>] xfs_qm_dqget+0x132/0x4e0 [xfs]
[<ffffffffa0756bb0>] xfs_qm_quotacheck_dqadjust+0xa0/0x3e0 [xfs]
[<ffffffffa075724d>] xfs_qm_dqusage_adjust+0x35d/0x4f0 [xfs]
[<ffffffffa06c9068>] xfs_iwalk_ag_recs+0x348/0x5d0 [xfs]
[<ffffffffa06c95d3>] xfs_iwalk_run_callbacks+0x273/0x540 [xfs]
[<ffffffffa06c9e8d>] xfs_iwalk_ag+0x5ed/0x890 [xfs]
[<ffffffffa06ca22f>] xfs_iwalk_ag_work+0xff/0x170 [xfs]
[<ffffffffa06d22c9>] xfs_pwork_work+0x79/0x130 [xfs]
[<ffffffff81170bb2>] process_one_work+0x672/0x1040
[<ffffffff81171b1b>] worker_thread+0x59b/0xec0
[<ffffffff8118711e>] kthread+0x29e/0x340
[<ffffffff810032bf>] ret_from_fork+0x1f/0x30
Now we know that quotacheck is at fault, but even this report was
canaryish -- it was triggered by xfs/494, which doesn't actually mount
any filesystems. (kmemleak can be a little slow to notice leaks, even
with fstests repeatedly whacking it to look for them.) Looking at the
*previous* fstest, however, showed that the test run before xfs/494 was
xfs/117. The tipoff to the problem is in this excerpt from dmesg:
XFS (sda4): Quotacheck needed: Please wait.
XFS (sda4): Metadata corruption detected at xfs_dinode_verify.part.0+0xdb/0x7b0 [xfs], inode 0x119 dinode
XFS (sda4): Unmount and run xfs_repair
XFS (sda4): First 128 bytes of corrupted metadata buffer:
00000000: 49 4e 81 a4 03 02 00 00 00 00 00 00 00 00 00 00 IN..............
00000010: 00 00 00 01 00 00 00 00 00 90 57 54 54 1a 4c 68 ..........WTT.Lh
00000020: 81 f9 7d e1 6d ee 16 00 34 bd 7d e1 6d ee 16 00 ..}.m...4.}.m...
00000030: 34 bd 7d e1 6d ee 16 00 00 00 00 00 00 00 00 00 4.}.m...........
00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000050: 00 00 00 02 00 00 00 00 00 00 00 00 96 80 f3 ab ................
00000060: ff ff ff ff da 57 7b 11 00 00 00 00 00 00 00 03 .....W{.........
00000070: 00 00 00 01 00 00 00 10 00 00 00 00 00 00 00 08 ................
XFS (sda4): Quotacheck: Unsuccessful (Error -117): Disabling quotas.
The dinode verifier decided that the inode was corrupt, which causes
iget to return with EFSCORRUPTED. Since this happened during
quotacheck, it is obvious that the kernel aborted the inode walk on
account of the corruption error and disabled quotas. Unfortunately, we
neglect to purge the dquot cache before doing that, which is how the
dquots leaked.
The problems started 10 years ago in commit b84a3a, when the dquot lists
were converted to a radix tree, but the error handling behavior was not
correctly preserved -- in that commit, if the bulkstat failed and
usrquota was enabled, the bulkstat failure code would be overwritten by
the result of flushing all the dquots to disk. As long as that
succeeds, we'd continue the quota mount as if everything were ok, but
instead we're now operating with a corrupt inode and incorrect quota
usage counts. I didn't notice this bug in 2019 when I wrote commit
ebd126a, which changed quotacheck to skip the dqflush when the scan
doesn't complete due to inode walk failures.
Introduced-by: b84a3a9675 ("xfs: remove the per-filesystem list of dquots")
Fixes: ebd126a651 ("xfs: convert quotacheck to use the new iwalk functions")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
xfs/538 on a 1kB block filesystem failed with this assert:
XFS: Assertion failed: cur->bc_btnum != XFS_BTNUM_BMAP || cur->bc_ino.allocated == 0 || xfs_is_shutdown(cur->bc_mp), file: fs/xfs/libxfs/xfs_btree.c, line: 448
The problem was that an allocation failed unexpectedly in
xfs_bmbt_alloc_block() after roughly 150,000 minlen allocation error
injections, resulting in an EFSCORRUPTED error being returned to
xfs_bmapi_write(). The error occurred on extent-to-btree format
conversion allocating the new root block:
RIP: 0010:xfs_bmbt_alloc_block+0x177/0x210
Call Trace:
<TASK>
xfs_btree_new_iroot+0xdf/0x520
xfs_btree_make_block_unfull+0x10d/0x1c0
xfs_btree_insrec+0x364/0x790
xfs_btree_insert+0xaa/0x210
xfs_bmap_add_extent_hole_real+0x1fe/0x9a0
xfs_bmapi_allocate+0x34c/0x420
xfs_bmapi_write+0x53c/0x9c0
xfs_alloc_file_space+0xee/0x320
xfs_file_fallocate+0x36b/0x450
vfs_fallocate+0x148/0x340
__x64_sys_fallocate+0x3c/0x70
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xa
Why the allocation failed at this point is unknown, but is likely
that we ran the transaction out of reserved space and filesystem out
of space with bmbt blocks because of all the minlen allocations
being done causing worst case fragmentation of a large allocation.
Regardless of the cause, we've then called xfs_bmapi_finish() which
calls xfs_btree_del_cursor(cur, error) to tear down the cursor.
So we have a failed operation, error != 0, cur->bc_ino.allocated > 0
and the filesystem is still up. The assert fails to take into
account that allocation can fail with an error and the transaction
teardown will shut the filesystem down if necessary. i.e. the
assert needs to check "|| error != 0" as well, because at this point
shutdown is pending because the current transaction is dirty....
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Not fatal, the assert is there to catch developer attention. I'm
seeing this occasionally during recoveryloop testing after a
shutdown, and I don't want this to stop an overnight recoveryloop
run as it is currently doing.
Convert the ASSERT to a XFS_IS_CORRUPT() check so it will dump a
corruption report into the log and cause a test failure that way,
but it won't stop the machine dead.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Commit dc04db2aa7 has caused a small aim7 regression, showing a
small increase in CPU usage in __xfs_btree_check_sblock() as a
result of the extra checking.
This is likely due to the endian conversion of the sibling poitners
being unconditional instead of relying on the compiler to endian
convert the NULL pointer at compile time and avoiding the runtime
conversion for this common case.
Rework the checks so that endian conversion of the sibling pointers
is only done if they are not null as the original code did.
.... and these need to be "inline" because the compiler completely
fails to inline them automatically like it should be doing.
$ size fs/xfs/libxfs/xfs_btree.o*
text data bss dec hex filename
51874 240 0 52114 cb92 fs/xfs/libxfs/xfs_btree.o.orig
51562 240 0 51802 ca5a fs/xfs/libxfs/xfs_btree.o.inline
Just when you think the tools have advanced sufficiently we don't
have to care about stuff like this anymore, along comes a reminder
that *our tools still suck*.
Fixes: dc04db2aa7 ("xfs: detect self referencing btree sibling pointers")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Pull sysctl updates from Luis Chamberlain:
"For two kernel releases now kernel/sysctl.c has been being cleaned up
slowly, since the tables were grossly long, sprinkled with tons of
#ifdefs and all this caused merge conflicts with one susbystem or
another.
This tree was put together to help try to avoid conflicts with these
cleanups going on different trees at time. So nothing exciting on this
pull request, just cleanups.
Thanks a lot to the Uniontech and Huawei folks for doing some of this
nasty work"
* tag 'sysctl-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (28 commits)
sched: Fix build warning without CONFIG_SYSCTL
reboot: Fix build warning without CONFIG_SYSCTL
kernel/kexec_core: move kexec_core sysctls into its own file
sysctl: minor cleanup in new_dir()
ftrace: fix building with SYSCTL=y but DYNAMIC_FTRACE=n
fs/proc: Introduce list_for_each_table_entry for proc sysctl
mm: fix unused variable kernel warning when SYSCTL=n
latencytop: move sysctl to its own file
ftrace: fix building with SYSCTL=n but DYNAMIC_FTRACE=y
ftrace: Fix build warning
ftrace: move sysctl_ftrace_enabled to ftrace.c
kernel/do_mount_initrd: move real_root_dev sysctls to its own file
kernel/delayacct: move delayacct sysctls to its own file
kernel/acct: move acct sysctls to its own file
kernel/panic: move panic sysctls to its own file
kernel/lockdep: move lockdep sysctls to its own file
mm: move page-writeback sysctls to their own file
mm: move oom_kill sysctls to their own file
kernel/reboot: move reboot sysctls to its own file
sched: Move energy_aware sysctls to topology.c
...
Pull MM updates from Andrew Morton:
"Almost all of MM here. A few things are still getting finished off,
reviewed, etc.
- Yang Shi has improved the behaviour of khugepaged collapsing of
readonly file-backed transparent hugepages.
- Johannes Weiner has arranged for zswap memory use to be tracked and
managed on a per-cgroup basis.
- Munchun Song adds a /proc knob ("hugetlb_optimize_vmemmap") for
runtime enablement of the recent huge page vmemmap optimization
feature.
- Baolin Wang contributes a series to fix some issues around hugetlb
pagetable invalidation.
- Zhenwei Pi has fixed some interactions between hwpoisoned pages and
virtualization.
- Tong Tiangen has enabled the use of the presently x86-only
page_table_check debugging feature on arm64 and riscv.
- David Vernet has done some fixup work on the memcg selftests.
- Peter Xu has taught userfaultfd to handle write protection faults
against shmem- and hugetlbfs-backed files.
- More DAMON development from SeongJae Park - adding online tuning of
the feature and support for monitoring of fixed virtual address
ranges. Also easier discovery of which monitoring operations are
available.
- Nadav Amit has done some optimization of TLB flushing during
mprotect().
- Neil Brown continues to labor away at improving our swap-over-NFS
support.
- David Hildenbrand has some fixes to anon page COWing versus
get_user_pages().
- Peng Liu fixed some errors in the core hugetlb code.
- Joao Martins has reduced the amount of memory consumed by
device-dax's compound devmaps.
- Some cleanups of the arch-specific pagemap code from Anshuman
Khandual.
- Muchun Song has found and fixed some errors in the TLB flushing of
transparent hugepages.
- Roman Gushchin has done more work on the memcg selftests.
... and, of course, many smaller fixes and cleanups. Notably, the
customary million cleanup serieses from Miaohe Lin"
* tag 'mm-stable-2022-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (381 commits)
mm: kfence: use PAGE_ALIGNED helper
selftests: vm: add the "settings" file with timeout variable
selftests: vm: add "test_hmm.sh" to TEST_FILES
selftests: vm: check numa_available() before operating "merge_across_nodes" in ksm_tests
selftests: vm: add migration to the .gitignore
selftests/vm/pkeys: fix typo in comment
ksm: fix typo in comment
selftests: vm: add process_mrelease tests
Revert "mm/vmscan: never demote for memcg reclaim"
mm/kfence: print disabling or re-enabling message
include/trace/events/percpu.h: cleanup for "percpu: improve percpu_alloc_percpu event trace"
include/trace/events/mmflags.h: cleanup for "tracing: incorrect gfp_t conversion"
mm: fix a potential infinite loop in start_isolate_page_range()
MAINTAINERS: add Muchun as co-maintainer for HugeTLB
zram: fix Kconfig dependency warning
mm/shmem: fix shmem folio swapoff hang
cgroup: fix an error handling path in alloc_pagecache_max_30M()
mm: damon: use HPAGE_PMD_SIZE
tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate
nodemask.h: fix compilation error with GCC12
...
Refactor: Use existing helpers that other lock operations use. This
change removes several automatic variables, so re-organize the
variable declarations for readability.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
nfsd4_release_lockowner() holds clp->cl_lock when it calls
check_for_locks(). However, check_for_locks() calls nfsd_file_get()
/ nfsd_file_put() to access the backing inode's flc_posix list, and
nfsd_file_put() can sleep if the inode was recently removed.
Let's instead rely on the stateowner's reference count to gate
whether the release is permitted. This should be a reliable
indication of locks-in-use since file lock operations and
->lm_get_owner take appropriate references, which are released
appropriately when file locks are removed.
Reported-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org
Pull xfs updates from Dave Chinner:
"This is a big update with lots of new code. The summary below them
all, so I'll just touch on teh higlights. The two main new features
are Large Extent Counts and Logged Attribute Replay - these are two
new foundational features that we are building more complex future
features on top of.
For upcoming functionality, we need to be able to store hundreds of
millions of xattrs per inode. The Large Extent Count feature removes
the limits that prevent this scale of xattr storage, and while we were
modifying the on disk extent count format we also increased the number
of data extents we support per inode from 2^32 to 2^47.
We also need to be able to modify xattrs as part of larger atomic
transactions rather than as standalone transactions. The Logged
Attribute Replay feature introduces the infrastructure that allows us
to use intents to record the attribute modifications in the journal
before we start them, hence allowing other atomic transactions to log
attribute modification intents and then defer the actual modification
to later. If we then crash, log recovery then guarantees that the
attribute is replayed in the context of the atomic transaction that
logged the intent.
A significant chunk of the commits in this merge are for the base
attribute replay functionality along with fixes, improvements and
cleanups related to this new functioanlity. Allison deserves a big
round of thanks for her ongoing work to get this functionality into
XFS.
There are also many other smaller changes and improvements, so overall
this is one of the bigger XFS merge requests in some time.
I will be following up next week with another smaller pull request -
we already have another round of fixes and improvements to the logged
attribute replay functionality just about ready to go. They'll soak
and test over the next week, and I'll send a pull request for them
near the end of the merge window.
Summary:
- support for printk message indexing.
- large extent counts to provide support for up to 2^47 data extents
and 2^32 attribute extents, allowing us to scale beyond 4 billion
data extents to billions of xattrs per inode.
- conversion of various flags fields to be consistently declared as
unsigned bit fields.
- improvements to realtime extent accounting and converts them to
per-cpu counters to match all the other block and inode accounting.
- reworks core log formatting code to reduce iterations, have a
shorter, cleaner fast path and generally be easier to understand
and maintain.
- improvements to rmap btree searches that reduce overhead by up to
30% resulting in xfs_scrub runtime reductions of 15%.
- improvements to reflink that remove the size limitations in
remapping operations and greatly reduce the size of transaction
reservations.
- reworks the minimum log size calculations to allow us to change
transaction reservations without changing the minimum supported log
size.
- removal of quota warning support as it has never been used on
Linux.
- intent whiteouts to allow us to cancel intents that are completed
entirely in memory rather than having use CPU and disk bandwidth
formatting and writing them into the journal when it is not
necessary. This makes rmap, reflink and extent freeing slightly
more efficient, but provides massive improvements for....
- Logged Attribute Replay feature support. This is a fundamental
change to the way we modify attributes, laying the foundation for
future integration of attribute modifications as part of other
atomic transactional operations the filesystem performs.
- Lots of cleanups and fixes for the logged attribute replay
functionality"
* tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (124 commits)
xfs: can't use kmem_zalloc() for attribute buffers
xfs: detect empty attr leaf blocks in xfs_attr3_leaf_verify
xfs: ATTR_REPLACE algorithm with LARP enabled needs rework
xfs: use XFS_DA_OP flags in deferred attr ops
xfs: remove xfs_attri_remove_iter
xfs: switch attr remove to xfs_attri_set_iter
xfs: introduce attr remove initial states into xfs_attr_set_iter
xfs: xfs_attr_set_iter() does not need to return EAGAIN
xfs: clean up final attr removal in xfs_attr_set_iter
xfs: remote xattr removal in xfs_attr_set_iter() is conditional
xfs: XFS_DAS_LEAF_REPLACE state only needed if !LARP
xfs: split remote attr setting out from replace path
xfs: consolidate leaf/node states in xfs_attr_set_iter
xfs: kill XFS_DAC_LEAF_ADDNAME_INIT
xfs: separate out initial attr_set states
xfs: don't set quota warning values
xfs: remove warning counters from struct xfs_dquot_res
xfs: remove quota warning limit from struct xfs_quota_limits
xfs: rework deferred attribute operation setup
xfs: make xattri_leaf_bp more useful
...
Pull fsnotify updates from Jan Kara:
"The biggest part of this is support for fsnotify inode marks that
don't pin inodes in memory but rather get evicted together with the
inode (they are useful if userspace needs to exclude receipt of events
from potentially large subtrees using fanotify ignore marks).
There is also a fix for more consistent handling of events sent to
parent and a fix of sparse(1) complaints"
* tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: fix incorrect fmode_t casts
fsnotify: consistent behavior for parent not watching children
fsnotify: introduce mark type iterator
fanotify: enable "evictable" inode marks
fanotify: use fsnotify group lock helpers
fanotify: implement "evictable" inode marks
fanotify: factor out helper fanotify_mark_update_flags()
fanotify: create helper fanotify_mark_user_flags()
fsnotify: allow adding an inode mark without pinning inode
dnotify: use fsnotify group lock helpers
nfsd: use fsnotify group lock helpers
audit: use fsnotify group lock helpers
inotify: use fsnotify group lock helpers
fsnotify: create helpers for group mark_mutex lock
fsnotify: make allow_dups a property of the group
fsnotify: pass flags argument to fsnotify_alloc_group()
fsnotify: fix wrong lockdep annotations
inotify: move control flags from mask to mark flags
inotify: show inotify mask flags in proc fdinfo
Pull writeback and ext2 cleanups from Jan Kara:
"One small ext2 cleanup and one writeback spelling fix"
* tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
writeback: fix typo in comment
fs: ext2: Fix duplicate included linux/dax.h
Pull misc hardening updates from Gustavo Silva:
"Replace a few open-coded instances with size_t saturating arithmetic
helpers"
* tag 'size_t-saturating-helpers-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
virt: acrn: Prefer array_size and struct_size over open coded arithmetic
afs: Prefer struct_size over open coded arithmetic
The following function is the only place that checks USER_LOCK_ATTACHED.
This flag is set when lock request is granted through user_ast() and only
the following function will clear it.
Checking of this flag here is to make sure ocfs2_dlm_unlock is not issued
if this lock is never granted. For example, lock file is created and then
get removed, open file never happens.
Clearing the flag here is not necessary because this is the only function
that checks it, if another flow is executing user_dlm_destroy_lock(), it
will bail out at the beginning because of USER_LOCK_IN_TEARDOWN and never
check USER_LOCK_ATTACHED. Drop the clear, so we don't need take care of
it for the following error handling patch.
int user_dlm_destroy_lock(struct user_lock_res *lockres)
{
...
status = 0;
if (!(lockres->l_flags & USER_LOCK_ATTACHED)) {
spin_unlock(&lockres->l_lock);
goto bail;
}
lockres->l_flags &= ~USER_LOCK_ATTACHED;
lockres->l_flags |= USER_LOCK_BUSY;
spin_unlock(&lockres->l_lock);
status = ocfs2_dlm_unlock(conn, &lockres->l_lksb, DLM_LKF_VALBLK);
if (status) {
user_log_dlm_error("ocfs2_dlm_unlock", status, lockres);
goto bail;
}
...
}
V1 discussion with Joseph:
https://lore.kernel.org/all/7b620c53-0c45-da2c-829e-26195cbe7d4e@linux.alibaba.com/T/
Link: https://lkml.kernel.org/r/20220518235224.87100-1-junxiao.bi@oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
