f2fs: add support for FS_IOC_GETFSSYSFSPATH

FS_IOC_GETFSSYSFSPATH ioctl expects sysfs sub-path of a filesystem, the
format can be "$FSTYP/$SYSFS_IDENTIFIER" under /sys/fs, it can helps to
standardizes exporting sysfs datas across filesystems.

This patch wires up FS_IOC_GETFSSYSFSPATH for f2fs, it will output
"f2fs/<dev>".

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2024-05-15 16:12:33 +08:00 committed by Jaegeuk Kim
parent c240c87bcd
commit cc260b66c4

View file

@ -4481,6 +4481,7 @@ try_onemore:
sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
super_set_uuid(sb, (void *) raw_super->uuid, sizeof(raw_super->uuid));
super_set_sysfs_name_bdev(sb);
sb->s_iflags |= SB_I_CGROUPWB;
/* init f2fs-specific super block info */