linux-stable/fs/exfat
Yuezhang Mo 8a3f5711ad exfat: reduce FAT chain traversal
Before this commit, ->dir and ->entry of exfat_inode_info record the
first cluster of the parent directory and the directory entry index
starting from this cluster.

The directory entry set will be gotten during write-back-inode/rmdir/
unlink/rename. If the clusters of the parent directory are not
continuous, the FAT chain will be traversed from the first cluster of
the parent directory to find the cluster where ->entry is located.

After this commit, ->dir records the cluster where the first directory
entry in the directory entry set is located, and ->entry records the
directory entry index in the cluster, so that there is almost no need
to access the FAT when getting the directory entry set.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2024-11-25 17:08:27 +09:00
..
balloc.c exfat: fix memory leak in exfat_load_bitmap() 2024-09-18 07:40:58 +09:00
cache.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
dir.c exfat: reduce FAT chain traversal 2024-11-25 17:08:27 +09:00
exfat_fs.h exfat: reduce FAT chain traversal 2024-11-25 17:08:27 +09:00
exfat_raw.h exfat: add ioctls for accessing attributes 2023-10-31 10:00:51 +09:00
fatent.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
file.c exfat: fix file being changed by unaligned direct write 2024-11-25 17:08:21 +09:00
inode.c exfat: add exfat_get_dentry_set_by_ei() helper 2024-11-25 17:08:23 +09:00
Kconfig fs: add CONFIG_BUFFER_HEAD 2023-08-02 09:13:09 -06:00
Makefile exfat: add Kconfig and Makefile 2020-03-05 21:00:40 -05:00
misc.c exfat: convert to new timestamp accessors 2023-10-18 13:26:21 +02:00
namei.c exfat: reduce FAT chain traversal 2024-11-25 17:08:27 +09:00
nls.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
super.c exfat: Implement sops->shutdown and ioctl 2024-09-18 07:40:56 +09:00