diff options
| author |   Eric Sandeen <sandeen@redhat.com> | 2018-05-15 13:20:03 -0700 |
|---|---|---|
| committer |   Darrick J. Wong <darrick.wong@oracle.com> | 2018-05-16 08:50:16 -0700 |
| commit | 62750d040bd137fd6f541e216502d9158e07d348 (patch) | |
| tree | 748dc022ed12e6f3101eec36fe1b7f197f9cd705 /include/uapi/linux/fs.h | |
| parent | xfs: factor the ag length extension code into libxfs (diff) | |
| download | linux-dev-62750d040bd137fd6f541e216502d9158e07d348.tar.xz linux-dev-62750d040bd137fd6f541e216502d9158e07d348.zip | |
fs: copy BTRFS_IOC_[SG]ET_FSLABEL to vfs
This retains 256 chars as the maximum size through the interface, which
is the btrfs limit and AFAIK exceeds any other filesystem's maximum
label size.
This just copies the ioctl for now and leaves it in place for btrfs
for the time being. A later patch will allow btrfs to use the new
common ioctl definition, but it may be sent after this is merged.
(Note, Reviewed-by's were originally given for the combined vfs+btrfs
patch, some license taken here.)
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: David Sterba <dsterba@suse.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'include/uapi/linux/fs.h')
| -rw-r--r-- | include/uapi/linux/fs.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index d2a8313fabd7..9d132f8f2df8 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -242,6 +242,8 @@ struct fsxattr { #define FICLONERANGE _IOW(0x94, 13, struct file_clone_range) #define FIDEDUPERANGE _IOWR(0x94, 54, struct file_dedupe_range) +#define FSLABEL_MAX 256 /* Max chars for the interface; each fs may differ */ + #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) #define FS_IOC_GETVERSION _IOR('v', 1, long) @@ -251,8 +253,10 @@ struct fsxattr { #define FS_IOC32_SETFLAGS _IOW('f', 2, int) #define FS_IOC32_GETVERSION _IOR('v', 1, int) #define FS_IOC32_SETVERSION _IOW('v', 2, int) -#define FS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr) -#define FS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr) +#define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr) +#define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr) +#define FS_IOC_GETFSLABEL _IOR(0x94, 49, char[FSLABEL_MAX]) +#define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX]) /* * File system encryption support |