If inc_valid_block_count() can not allocate all requested blocks,
it needs to release block count in .total_valid_block_count and
resevation blocks in inode.
Fixes: 5460749487 ("f2fs: compress: fix to avoid inconsistence bewteen i_blocks and dnode")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Previously, we account reserved blocks and compressed blocks into
@compr_blocks, then, f2fs_i_compr_blocks_update(,compr_blocks) will
update i_compr_blocks incorrectly, fix it.
Meanwhile, for the case all blocks in cluster were reserved, fix to
update dn->ofs_in_node correctly.
Fixes: eb8fbaa533 ("f2fs: compress: fix to check unreleased compressed cluster")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
- It missed to check validation of fault attrs in parse_options(),
let's fix to add check condition in f2fs_build_fault_attr().
- Use f2fs_build_fault_attr() in __sbi_store() to clean up code.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
type of f2fs_inode.i_gc_failures, f2fs_inode_info.i_gc_failures, and
f2fs_sb_info.gc_pin_file_threshold is __le16, unsigned int, and u64,
so it will cause truncation during comparison and persistence.
Unifying variable of these three variables to unsigned short, and
add an upper boundary limitation for gc_pin_file_threshold.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
After commit 3db1de0e58 ("f2fs: change the current atomic write way"),
we removed all GC_FAILURE_ATOMIC usage, let's change i_gc_failures[]
array to i_pin_failure for cleanup.
Meanwhile, let's define i_current_depth and i_gc_failures as union
variable due to they won't be valid at the same time.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Commit b1c9d3f833 ("f2fs: support printk_ratelimited() in f2fs_printk()")
missed some cases, cover all remains for cleanup.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
As for zoned-UFS, f2fs section size is forced to zone size. And zone
size may not aligned to pow2.
Fixes: 859fca6b70 ("f2fs: swap: support migrating swapfile in aligned write mode")
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Signed-off-by: Wu Bo <bo.wu@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
If active_log is not 6, we never use WARM_DATA segment, let's
avoid allocating WARM_DATA segment for direct IO.
Signed-off-by: Yunlei He <heyunlei@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
To make code clean, use blk_zone_cond_str() to print debug information.
Signed-off-by: Wu Bo <bo.wu@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
f2fs_ra_meta_pages can try to read ahead on invalid block address which is
not the corruption case.
Cc: <stable@kernel.org> # v6.9+
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=218770
Fixes: 31f85ccc84 ("f2fs: unify the error handling of f2fs_is_valid_blkaddr")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Commit d7e9a9037d ("f2fs: Support Block Size == Page Size") missed to
adjust comment in sanity_check_raw_super(), fix it.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Convert f2fs__page tracepoint class() and its instances to use folio
and related functionality, and rename it to f2fs__folio().
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Convert f2fs_read_inline_data() to use folio and related
functionality, and also convert its caller to use folio.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Convert f2fs_read_single_page() to use folio and related
functionality.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Convert f2fs_mpage_readpages() to use folio and related
functionality.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This reverts commit 930e260763 ("f2fs: remove obsolete whint_mode"), as we
decide to pass write hints to the disk.
Cc: Hyunchul Lee <cheol.lee@lge.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Since the allocation happens in conventional LU for zoned storage, we
can allow direct io for that.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
In a case writing without fallocate(), we can't guarantee it's allocated
in the conventional area for zoned stroage. To make it consistent across
storage devices, we disallow it regardless of storage device types.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
some user behaviors requested filesystem operations, which
will cause filesystem not idle.
Meanwhile adjust some f2fs_update_time(REQ_TIME) positions.
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
While do not allocating a new section in advance for file pinning area, I
missed that we should write the sum block for the last segment of a file
pinning section.
Fixes: 9703d69d9d ("f2fs: support file pinning for zoned devices")
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
ioctl(F2FS_IOC_MOVE_RANGE) can truncate or punch hole on pinned file,
fix to disallow it.
Fixes: 5fed0be858 ("f2fs: do not allow partial truncation on pinned file")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
compress and pinfile flag should be checked after inode lock held to
avoid race condition, fix it.
Fixes: 4c8ff7095b ("f2fs: support data compression")
Fixes: 5fed0be858 ("f2fs: do not allow partial truncation on pinned file")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
If the max open zones of zoned devices are less than
the active logs of F2FS, the device may error due to
insufficient zone resources when multiple active logs
are being written at the same time.
Signed-off-by: Wenjie Qi <qwjhust@gmail.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
A length that exceeds the real size of the inode may be
specified from user, although these out-of-range areas
are not mapped, but they still need to be check in
while loop, which is unnecessary.
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
In f2fs_remount, SB_INLINECRYPT flag will be clear and re-set.
If create new file or open file during this gap, these files
will not use inlinecrypt. Worse case, it may lead to data
corruption if wrappedkey_v0 is enable.
Thread A: Thread B:
-f2fs_remount -f2fs_file_open or f2fs_new_inode
-default_options
<- clear SB_INLINECRYPT flag
-fscrypt_select_encryption_impl
-parse_options
<- set SB_INLINECRYPT again
Signed-off-by: Yunlei He <heyunlei@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
As reported by Yi Zhang in mailing list [1], kernel warning was catched
during zbd/010 test as below:
./check zbd/010
zbd/010 (test gap zone support with F2FS) [failed]
runtime ... 3.752s
something found in dmesg:
[ 4378.146781] run blktests zbd/010 at 2024-02-18 11:31:13
[ 4378.192349] null_blk: module loaded
[ 4378.209860] null_blk: disk nullb0 created
[ 4378.413285] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[ 4378.422334] scsi host15: scsi_debug: version 0191 [20210520]
dev_size_mb=1024, opts=0x0, submit_queues=1, statistics=0
[ 4378.434922] scsi 15:0:0:0: Direct-Access-ZBC Linux
scsi_debug 0191 PQ: 0 ANSI: 7
[ 4378.443343] scsi 15:0:0:0: Power-on or device reset occurred
[ 4378.449371] sd 15:0:0:0: Attached scsi generic sg5 type 20
[ 4378.449418] sd 15:0:0:0: [sdf] Host-managed zoned block device
...
(See '/mnt/tests/gitlab.com/api/v4/projects/19168116/repository/archive.zip/storage/blktests/blk/blktests/results/nodev/zbd/010.dmesg'
WARNING: CPU: 22 PID: 44011 at fs/iomap/iter.c:51
CPU: 22 PID: 44011 Comm: fio Not tainted 6.8.0-rc3+ #1
RIP: 0010:iomap_iter+0x32b/0x350
Call Trace:
<TASK>
__iomap_dio_rw+0x1df/0x830
f2fs_file_read_iter+0x156/0x3d0 [f2fs]
aio_read+0x138/0x210
io_submit_one+0x188/0x8c0
__x64_sys_io_submit+0x8c/0x1a0
do_syscall_64+0x86/0x170
entry_SYSCALL_64_after_hwframe+0x6e/0x76
Shinichiro Kawasaki helps to analyse this issue and proposes a potential
fixing patch in [2].
Quoted from reply of Shinichiro Kawasaki:
"I confirmed that the trigger commit is dbf8e63f48 as Yi reported. I took a
look in the commit, but it looks fine to me. So I thought the cause is not
in the commit diff.
I found the WARN is printed when the f2fs is set up with multiple devices,
and read requests are mapped to the very first block of the second device in the
direct read path. In this case, f2fs_map_blocks() and f2fs_map_blocks_cached()
modify map->m_pblk as the physical block address from each block device. It
becomes zero when it is mapped to the first block of the device. However,
f2fs_iomap_begin() assumes that map->m_pblk is the physical block address of the
whole f2fs, across the all block devices. It compares map->m_pblk against
NULL_ADDR == 0, then go into the unexpected branch and sets the invalid
iomap->length. The WARN catches the invalid iomap->length.
This WARN is printed even for non-zoned block devices, by following steps.
- Create two (non-zoned) null_blk devices memory backed with 128MB size each:
nullb0 and nullb1.
# mkfs.f2fs /dev/nullb0 -c /dev/nullb1
# mount -t f2fs /dev/nullb0 "${mount_dir}"
# dd if=/dev/zero of="${mount_dir}/test.dat" bs=1M count=192
# dd if="${mount_dir}/test.dat" of=/dev/null bs=1M count=192 iflag=direct
..."
So, the root cause of this issue is: when multi-devices feature is on,
f2fs_map_blocks() may return zero blkaddr in non-primary device, which is
a verified valid block address, however, f2fs_iomap_begin() treats it as
an invalid block address, and then it triggers the warning in iomap
framework code.
Finally, as discussed, we decide to use a more simple and direct way that
checking (map.m_flags & F2FS_MAP_MAPPED) condition instead of
(map.m_pblk != NULL_ADDR) to fix this issue.
Thanks a lot for the effort of Yi Zhang and Shinichiro Kawasaki on this
issue.
[1] https://lore.kernel.org/linux-f2fs-devel/CAHj4cs-kfojYC9i0G73PRkYzcxCTex=-vugRFeP40g_URGvnfQ@mail.gmail.com/
[2] https://lore.kernel.org/linux-f2fs-devel/gngdj77k4picagsfdtiaa7gpgnup6fsgwzsltx6milmhegmjff@iax2n4wvrqye/
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Closes: https://lore.kernel.org/linux-f2fs-devel/CAHj4cs-kfojYC9i0G73PRkYzcxCTex=-vugRFeP40g_URGvnfQ@mail.gmail.com/
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: 1517c1a7a4 ("f2fs: implement iomap operations")
Fixes: 8d3c1fa3fa ("f2fs: don't rely on F2FS_MAP_* in f2fs_iomap_begin")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
As Roman Smirnov reported as below:
"
There is a possible bug in f2fs_truncate_inode_blocks():
if (err < 0 && err != -ENOENT)
goto fail;
...
offset[1] = 0;
offset[0]++;
nofs += err;
If err = -ENOENT then nofs will sum with an error code,
which is strange behaviour. Also if nofs < ENOENT this will
cause an overflow. err will be equal to -ENOENT with the
following call stack:
truncate_nodes()
f2fs_get_node_page()
__get_node_page()
read_node_page()
"
If nat is corrupted, truncate_nodes() may return -ENOENT, and
f2fs_truncate_inode_blocks() doesn't handle such error correctly,
fix it.
Reported-by: Roman Smirnov <r.smirnov@omp.ru>
Closes: https://lore.kernel.org/linux-f2fs-devel/085b27fd2b364a3c8c3a9ca77363e246@omp.ru
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
If f2fs_evict_inode is called between freeze_super and thaw_super, the
s_writer rwsem count may become negative, resulting in hang.
CPU1 CPU2
f2fs_resize_fs() f2fs_evict_inode()
f2fs_freeze
set SBI_IS_FREEZING
skip sb_start_intwrite
f2fs_unfreeze
clear SBI_IS_FREEZING
sb_end_intwrite
To solve this problem, the call to sb_end_write is determined by whether
sb_start_intwrite is called, rather than the current freezing status.
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Sunmin Jeong <s_min.jeong@samsung.com>
Signed-off-by: Yeongjin Gil <youngjin.gil@samsung.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Support .shutdown callback in f2fs_sops, then, it can be called to
shut down the file system when underlying block device is marked dead.
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
dirty caps and two fixes to better handle EOF in the face of multiple
clients performing reads and size-extending writes at the same time.
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Merge tag 'ceph-for-6.9-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A patch to minimize blockage when processing very large batches of
dirty caps and two fixes to better handle EOF in the face of multiple
clients performing reads and size-extending writes at the same time"
* tag 'ceph-for-6.9-rc1' of https://github.com/ceph/ceph-client:
ceph: set correct cap mask for getattr request for read
ceph: stop copying to iter at EOF on sync reads
ceph: remove SLAB_MEM_SPREAD flag usage
ceph: break the check delayed cap loop every 5s
* Fix invalid pointer dereference by initializing xmbuf before tracepoint
function is invoked.
* Use memalloc_nofs_save() when inserting into quota radix tree.
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.9-merge-9' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Chandan Babu:
- Fix invalid pointer dereference by initializing xmbuf before
tracepoint function is invoked
- Use memalloc_nofs_save() when inserting into quota radix tree
* tag 'xfs-6.9-merge-9' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: quota radix tree allocations need to be NOFS on insert
xfs: fix dev_t usage in xmbuf tracepoints
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Merge tag '6.9-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- Various get_inode_info_fixes
- Fix for querying xattrs of cached dirs
- Four minor cleanup fixes (including adding some header corrections
and a missing flag)
- Performance improvement for deferred close
- Two query interface fixes
* tag '6.9-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
smb311: additional compression flag defined in updated protocol spec
smb311: correct incorrect offset field in compression header
cifs: Move some extern decls from .c files to .h
cifs: remove redundant variable assignment
cifs: fixes for get_inode_info
cifs: open_cached_dir(): add FILE_READ_EA to desired access
cifs: reduce warning log level for server not advertising interfaces
cifs: make sure server interfaces are requested only for SMB3+
cifs: defer close file handles having RH lease
UBI:
- Add Zhihao Cheng as reviewer
- Attach via device tree
- Add NVMEM layer
- Various fastmap related fixes
UBIFS:
- Add Zhihao Cheng as reviewer
- Convert to folios
- Various fixes (memory leaks in error paths, function prototypes)
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Merge tag 'ubifs-for-linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBI and UBIFS updates from Richard Weinberger:
"UBI:
- Add Zhihao Cheng as reviewer
- Attach via device tree
- Add NVMEM layer
- Various fastmap related fixes
UBIFS:
- Add Zhihao Cheng as reviewer
- Convert to folios
- Various fixes (memory leaks in error paths, function prototypes)"
* tag 'ubifs-for-linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: (34 commits)
mtd: ubi: fix NVMEM over UBI volumes on 32-bit systems
mtd: ubi: provide NVMEM layer over UBI volumes
mtd: ubi: populate ubi volume fwnode
mtd: ubi: introduce pre-removal notification for UBI volumes
mtd: ubi: attach from device tree
mtd: ubi: block: use notifier to create ubiblock from parameter
dt-bindings: mtd: ubi-volume: allow UBI volumes to provide NVMEM
dt-bindings: mtd: add basic bindings for UBI
ubifs: Queue up space reservation tasks if retrying many times
ubifs: ubifs_symlink: Fix memleak of inode->i_link in error path
ubifs: dbg_check_idx_size: Fix kmemleak if loading znode failed
ubi: Correct the number of PEBs after a volume resize failure
ubi: fix slab-out-of-bounds in ubi_eba_get_ldesc+0xfb/0x130
ubi: correct the calculation of fastmap size
ubifs: Remove unreachable code in dbg_check_ltab_lnum
ubifs: fix function pointer cast warnings
ubifs: fix sort function prototype
ubi: Check for too small LEB size in VTBL code
MAINTAINERS: Add Zhihao Cheng as UBI/UBIFS reviewer
ubifs: Convert populate_page() to take a folio
...
Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
Nothing all that crazy here, just some good updates that include:
- automatic attribute group hiding from Dan Williams (he fixed up my
horrible attempt at doing this.)
- kobject lock contention fixes from Eric Dumazet
- driver core cleanups from Andy
- kernfs rcu work from Tejun
- fw_devlink changes to resolve some reported issues
- other minor changes, all details in the shortlog
All of these have been in linux-next for a long time with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
Nothing all that crazy here, just some good updates that include:
- automatic attribute group hiding from Dan Williams (he fixed up my
horrible attempt at doing this.)
- kobject lock contention fixes from Eric Dumazet
- driver core cleanups from Andy
- kernfs rcu work from Tejun
- fw_devlink changes to resolve some reported issues
- other minor changes, all details in the shortlog
All of these have been in linux-next for a long time with no reported
issues"
* tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
device: core: Log warning for devices pending deferred probe on timeout
driver: core: Use dev_* instead of pr_* so device metadata is added
driver: core: Log probe failure as error and with device metadata
of: property: fw_devlink: Add support for "post-init-providers" property
driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
driver core: Adds flags param to fwnode_link_add()
debugfs: fix wait/cancellation handling during remove
device property: Don't use "proxy" headers
device property: Move enum dev_dma_attr to fwnode.h
driver core: Move fw_devlink stuff to where it belongs
driver core: Drop unneeded 'extern' keyword in fwnode.h
firmware_loader: Suppress warning on FW_OPT_NO_WARN flag
sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.
firmware_loader: introduce __free() cleanup hanler
platform-msi: Remove usage of the deprecated ida_simple_xx() API
sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
sysfs: Document new "group visible" helpers
sysfs: Fix crash on empty group attributes array
sysfs: Introduce a mechanism to hide static attribute_groups
sysfs: Introduce a mechanism to hide static attribute_groups
...
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Merge tag 'for-6.9-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"Fix a problem found in 6.7 after adding the temp-fsid feature which
changed device tracking in memory and broke grub-probe. This is used
on initrd-less systems. There were several iterations of the fix and
it took longer than expected"
* tag 'for-6.9-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: do not skip re-registration for the mounted device
- Improve dirsync performance by syncing on a dentry-set rather than
on a per-directory entry
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Merge tag 'exfat-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Improve dirsync performance by syncing on a dentry-set rather than on
a per-directory entry
* tag 'exfat-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: remove duplicate update parent dir
exfat: do not sync parent dir if just update timestamp
exfat: remove unused functions
exfat: convert exfat_find_empty_entry() to use dentry cache
exfat: convert exfat_init_ext_entry() to use dentry cache
exfat: move free cluster out of exfat_init_ext_entry()
exfat: convert exfat_remove_entries() to use dentry cache
exfat: convert exfat_add_entry() to use dentry cache
exfat: add exfat_get_empty_dentry_set() helper
exfat: add __exfat_get_dentry_set() helper
