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Hyeongseok Kim c6e2f52e30 exfat: speed up iterate/lookup by fixing start point of traversing cluster chain 
When directory iterate and lookup is called, there's a buggy rewinding
of start point for traversing cluster chain to the parent directory
entry's first cluster. This caused repeated cluster chain traversing
from the first entry of the parent directory that would show worse
performance if huge amounts of files exist under the parent directory.
Fix not to rewind, make continue from currently referenced cluster and
dir entry.

Tested with 50,000 files under single directory / 256GB sdcard,
with command "time ls -l > /dev/null",
Before :     0m08.69s real     0m00.27s user     0m05.91s system
After  :     0m07.01s real     0m00.25s user     0m04.34s system

Signed-off-by: Hyeongseok Kim <hyeongseok@gmail.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
2021-04-27 20:45:07 +09:00
..
9p
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
adfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
affs
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
afs
afs: Use wait_on_page_writeback_killable
2021-03-23 20:54:37 +00:00
autofs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
befs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
bfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
btrfs
for-5.12-rc6-tag
2021-04-11 11:53:36 -07:00
cachefiles
cachefiles, afs: mm wait fixes
2021-03-24 10:22:00 -07:00
ceph
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
cifs
cifs: escape spaces in share names
2021-04-07 21:30:27 -05:00
coda
coda: fix reference counting in coda_file_mmap error path
2021-04-23 14:42:39 -07:00
configfs
configfs: fix a use-after-free in __configfs_open_file
2021-03-11 12:13:48 +01:00
cramfs
cramfs: use %pD instead of messing with file_dentry()->d_name
2021-01-05 23:02:47 -05:00
crypto
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
2021-03-11 07:47:48 -07:00
debugfs
Driver core / debugfs update for 5.12-rc1
2021-02-24 10:13:55 -08:00
devpts
…
dlm
fs: dlm: check on existing node address
2020-11-10 12:14:20 -06:00
ecryptfs
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
efivarfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
efs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
erofs
Change since last update:
2021-03-13 12:26:22 -08:00
exfat
exfat: speed up iterate/lookup by fixing start point of traversing cluster chain
2021-04-27 20:45:07 +09:00
exportfs
exportfs: Add a function to return the raw output from fh_to_dentry()
2020-12-09 09:39:38 -05:00
ext2
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
ext4
Miscellaneous ext4 bug fixes for v5.12.
2021-03-21 14:06:10 -07:00
f2fs
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
2021-03-11 07:47:48 -07:00
fat
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
freevxfs
…
fscache
…
fuse
fuse: 32-bit user space ioctl compat for fuse device
2021-03-16 15:20:16 +01:00
gfs2
Two more gfs2 fixes
2021-04-03 12:15:01 -07:00
hfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
hfsplus
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
hostfs
hostfs: fix memory handling in follow_link()
2021-03-25 18:57:42 -04:00
hpfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
hugetlbfs
hugetlbfs: remove unneeded return value of hugetlb_vmtruncate()
2021-02-24 13:38:35 -08:00
iomap
Merge branch 'iomap-5.12-fixes' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2021-03-18 10:37:30 -07:00
isofs
isofs: handle large user and group ID
2021-02-03 19:05:52 +01:00
jbd2
block: use an on-stack bio in blkdev_issue_flush
2021-01-27 09:51:48 -07:00
jffs2
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
jfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
kernfs
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
lockd
SUNRPC: Make trace_svc_process() display the RPC procedure symbolically
2021-01-25 09:36:23 -05:00
minix
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
nfs
nfs: we don't support removing system.nfs4_acl
2021-03-11 13:17:42 -05:00
nfs_common
NFSv4_2: SSC helper should use its own config.
2021-01-28 10:55:37 -05:00
nfsd
NFSD: fix error handling in NFSv4.0 callbacks
2021-03-11 10:58:49 -05:00
nilfs2
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
2021-03-11 07:47:48 -07:00
nls
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
notify
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
ntfs
ntfs: check for valid standard information attribute
2021-02-24 13:38:26 -08:00
ocfs2
ocfs2: fix deadlock between setattr and dio_end_io_write
2021-04-09 14:54:23 -07:00
omfs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
openpromfs
…
orangefs
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
overlayfs
ovl: fix reference counting in ovl_mmap error path
2021-04-23 14:42:39 -07:00
proc
mm: use is_cow_mapping() across tree where proper
2021-03-13 11:27:30 -08:00
pstore
pstore fixes for v5.12-rc2
2021-03-05 17:21:25 -08:00
qnx4
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
qnx6
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
quota
quota: Fix memory leak when handling corrupted quota file
2021-01-05 14:42:18 +01:00
ramfs
ramfs: support O_TMPFILE
2021-02-24 13:38:26 -08:00
reiserfs
reiserfs: update reiserfs_xattrs_initialized() condition
2021-03-30 14:27:32 -07:00
romfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
squashfs
squashfs: fix xattr id and id lookup sanity checks
2021-03-25 09:22:55 -07:00
sysfs
sysfs: Support zapping of binary attr mmaps
2021-01-12 14:26:31 +01:00
sysv
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
tracefs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
ubifs
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
udf
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
ufs
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
unicode
unicode: Add utf8_casefold_hash
2020-09-10 14:03:31 -07:00
vboxsf
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
verity
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
xfs
xfs: also reject BULKSTAT_SINGLE in a mount user namespace
2021-03-15 08:50:41 -07:00
zonefs
zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone()
2021-03-17 08:56:50 +09:00
aio.c
Merge branch 'akpm' (patches from Andrew)
2020-12-15 12:53:37 -08:00
anon_inodes.c
fs: anon_inodes: rephrase to appropriate kernel-doc
2021-01-15 12:17:25 -05:00
attr.c
ima: handle idmapped mounts
2021-01-24 14:27:20 +01:00
bad_inode.c
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
Merge branch 'parisc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
2021-02-21 13:20:41 -08:00
binfmt_elf.c
Merge branch 'parisc-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
2021-02-21 13:20:41 -08:00
binfmt_em86.c
…
binfmt_flat.c
binfmt_flat: revert "binfmt_flat: don't offset the data start"
2020-08-24 08:49:13 +10:00
binfmt_misc.c
binfmt_misc: fix possible deadlock in bm_register_write
2021-03-13 11:27:30 -08:00
binfmt_script.c
…
block_dev.c
block: don't ignore REQ_NOWAIT for direct IO
2021-04-02 08:34:30 -06:00
buffer.c
fs: buffer: use raw page_memcg() on locked page
2021-02-24 13:38:30 -08:00
char_dev.c
…
compat_binfmt_elf.c
get rid of COMPAT_ELF_EXEC_PAGESIZE
2021-01-06 08:42:51 -05:00
coredump.c
fs/coredump: use kmap_local_page()
2021-02-26 09:41:05 -08:00
d_path.c
fs: fix NULL dereference due to data race in prepend_path()
2020-10-14 14:54:45 -07:00
dax.c
mm: provide a saner PTE walking API for modules
2021-02-09 07:05:44 -05:00
dcache.c
fs: delete repeated words in comments
2021-02-24 13:38:26 -08:00
direct-io.c
fs: direct-io: fix missing sdio->boundary
2021-04-09 14:54:23 -07:00
drop_caches.c
…
eventfd.c
eventfd: Export eventfd_ctx_do_read()
2020-11-15 09:49:10 -05:00
eventpoll.c
kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE
2021-02-16 09:59:41 +01:00
exec.c
fs: delete repeated words in comments
2021-02-24 13:38:26 -08:00
fcntl.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
fhandle.c
fs: delete repeated words in comments
2021-02-24 13:38:26 -08:00
file_table.c
epoll: take epitem list out of struct file
2020-10-25 20:02:08 -04:00
file.c
file: fix close_range() for unshare+cloexec
2021-04-02 14:11:10 +02:00
filesystems.c
…
fs_context.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
fs_parser.c
fs_parse: mark fs_param_bad_value() as static
2020-10-13 18:38:27 -07:00
fs_pin.c
…
fs_struct.c
vfs: Use sequence counter with associated spinlock
2020-07-29 16:14:27 +02:00
fs_types.c
…
fs-writeback.c
fs: improve comments for writeback_single_inode()
2021-01-13 17:26:50 +01:00
fsopen.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
init.c
init: handle idmapped mounts
2021-01-24 14:27:19 +01:00
inode.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
internal.h
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
io_uring.c
io_uring: fix early sqd_list removal sqpoll hangs
2021-04-14 13:07:27 -06:00
io-wq.c
io-wq: cancel unbounded works on io-wq destroy
2021-04-08 13:33:17 -06:00
io-wq.h
io_uring: remove structures from include/linux/io_uring.h
2021-03-18 09:44:35 -06:00
ioctl.c
fs: remove ksys_ioctl
2020-07-31 08:16:01 +02:00
Kconfig
s390,alpha: make TMPFS_INODE64 available again
2021-03-08 10:46:30 +01:00
Kconfig.binfmt
Merge branch 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-21 09:29:23 -08:00
kernel_read_file.c
fs/kernel_file_read: Add "offset" arg for partial reads
2020-10-05 13:37:04 +02:00
libfs.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
locks.c
Revert "nfsd4: a client's own opens needn't prevent delegations"
2021-03-09 10:37:34 -05:00
Makefile
fs: Remove dcookies support
2021-01-29 10:06:46 +05:30
mbcache.c
…
mount.h
mount: make {lock,unlock}_mount_hash() static
2021-01-24 14:29:34 +01:00
mpage.c
block: rename BIO_MAX_PAGES to BIO_MAX_VECS
2021-03-11 07:47:48 -07:00
namei.c
LOOKUP_MOUNTPOINT: we are cleaning "jumped" flag too late
2021-04-06 20:33:00 -04:00
namespace.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-02-27 08:07:12 -08:00
no-block.c
…
nsfs.c
…
open.c
idmapped-mounts-v5.12
2021-02-23 13:39:45 -08:00
pipe.c
fs: delete repeated words in comments
2021-02-24 13:38:26 -08:00
pnode.c
…
pnode.h
mount: fix mounting of detached mounts onto targets that reside on shared mounts
2021-03-08 15:18:43 +01:00
posix_acl.c
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
proc_namespace.c
fs: introduce MOUNT_ATTR_IDMAP
2021-01-24 14:43:45 +01:00
read_write.c
teach sendfile(2) to handle send-to-pipe directly
2021-01-25 23:29:36 -05:00
readdir.c
readdir: make sure to verify directory entry for legacy interfaces too
2021-04-17 11:39:49 -07:00
remap_range.c
ioctl: handle idmapped mounts
2021-01-24 14:27:19 +01:00
select.c
kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()
2021-03-16 22:13:10 +01:00
seq_file.c
fs: fix kernel-doc markups
2021-01-21 14:06:00 -07:00
signalfd.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
splice.c
for-5.12/block-2021-02-17
2021-02-21 11:02:48 -08:00
stack.c
…
stat.c
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
statfs.c
s390,alpha: switch to 64-bit ino_t
2021-02-13 17:17:53 +01:00
super.c
It has been a relatively quiet cycle in docsland.
2021-02-22 10:57:46 -08:00
sync.c
…
timerfd.c
…
userfaultfd.c
userfaultfd: use secure anon inodes for userfaultfd
2021-01-14 17:40:57 -05:00
utimes.c
utimes: handle idmapped mounts
2021-01-24 14:27:18 +01:00
xattr.c
namei: handle idmapped mounts in may_*() helpers
2021-01-24 14:27:17 +01:00