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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-03 09:11:30 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2016-10-04 18:06:40 -0700 |
| commit | f0ec1b8ef11df0a51954df7e3ff3ca4aadb0d34b (patch) | |
| tree | a58da7c9f703208189686d952b1e012aa67a6038 | |
| parent | xfs: define tracepoints for reflink activities (diff) | |
| download | wireguard-linux-f0ec1b8ef11df0a51954df7e3ff3ca4aadb0d34b.tar.xz wireguard-linux-f0ec1b8ef11df0a51954df7e3ff3ca4aadb0d34b.zip | |
xfs: add reflink feature flag to geometry
Report the reflink feature in the XFS geometry so that xfs_info and
friends know the filesystem has this feature.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
| -rw-r--r-- | fs/xfs/libxfs/xfs_fs.h | 3 | ||||
| -rw-r--r-- | fs/xfs/xfs_fsops.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index 79455058b752..6f4f2c3d7774 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -206,7 +206,8 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */ #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */ #define XFS_FSOP_GEOM_FLAGS_SPINODES 0x40000 /* sparse inode chunks */ -#define XFS_FSOP_GEOM_FLAGS_RMAPBT 0x80000 /* Reverse mapping btree */ +#define XFS_FSOP_GEOM_FLAGS_RMAPBT 0x80000 /* reverse mapping btree */ +#define XFS_FSOP_GEOM_FLAGS_REFLINK 0x100000 /* files can share blocks */ /* * Minimum and maximum sizes need for growth checks. diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 4b4059b5e501..3acbf4e03187 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -108,7 +108,9 @@ xfs_fs_geometry( (xfs_sb_version_hassparseinodes(&mp->m_sb) ? XFS_FSOP_GEOM_FLAGS_SPINODES : 0) | (xfs_sb_version_hasrmapbt(&mp->m_sb) ? - XFS_FSOP_GEOM_FLAGS_RMAPBT : 0); + XFS_FSOP_GEOM_FLAGS_RMAPBT : 0) | + (xfs_sb_version_hasreflink(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_REFLINK : 0); geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? mp->m_sb.sb_logsectsize : BBSIZE; geo->rtsectsize = mp->m_sb.sb_blocksize; |