diff options
| author | Ryusuke Konishi <konishi.ryusuke@gmail.com> | 2024-08-15 16:44:05 +0900 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-01 20:43:34 -0700 |
| commit | ef851d44a83ed625ec22eae6bd36a1348c8af571 (patch) | |
| tree | e7ecc312a1cb81701df310dddc3ef001ae70ccdb /fs/nilfs2 | |
| parent | 16d9691ad4b562ea19271f0788738f649c02cf3c (diff) | |
nilfs2: add support for FS_IOC_GETUUID
Patch series "nilfs2: add support for some common ioctls".
This series adds support for common ioctls to nilfs2 for getting the
volume UUID and the relative path of an FS instance within the sysfs
namespace, and also implements ioctls for nilfs2 to get and set the volume
label.
This patch (of 2):
Expose the UUID of a file system instance using the super_set_uuid helper
and support the FS_IOC_GETUUID ioctl.
Link: https://lkml.kernel.org/r/20240815074408.5550-1-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/20240815074408.5550-2-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2')
| -rw-r--r-- | fs/nilfs2/super.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index e835e1f5a712..167050b3ce7e 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -1063,6 +1063,9 @@ nilfs_fill_super(struct super_block *sb, struct fs_context *fc) if (err) goto failed_nilfs; + super_set_uuid(sb, nilfs->ns_sbp[0]->s_uuid, + sizeof(nilfs->ns_sbp[0]->s_uuid)); + cno = nilfs_last_cno(nilfs); err = nilfs_attach_checkpoint(sb, cno, true, &fsroot); if (err) { |