diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2021-09-01 10:46:48 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2021-10-22 16:40:40 -0700 |
| commit | 52b4a83ce114626b05fda51fd0b935a5d77a4075 (patch) | |
| tree | be511b0fd89d3f43ca64f866dce31f5579a6398d /fs/xfs/libxfs/xfs_fs.h | |
| parent | e1d5e23e0740c78889de079ff18bb92f90781627 (diff) | |
xfs: introduce online scrub freeze
Introduce a new 'online scrub freeze' that we can use to lock out all
filesystem modifications and background activity so that we can perform
global scans in order to rebuild metadata. This introduces a new IFLAG
to the scrub ioctl to indicate that userspace is willing to allow a
freeze.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_fs.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_fs.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index f3823212437b..7ddf80f7b19c 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -751,7 +751,11 @@ struct xfs_scrub_metadata { */ #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1 << 7) -#define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR) +/* i: Allow scrub to freeze the filesystem to perform global scans. */ +#define XFS_SCRUB_IFLAG_FREEZE_OK (1 << 8) + +#define XFS_SCRUB_FLAGS_IN (XFS_SCRUB_IFLAG_REPAIR | \ + XFS_SCRUB_IFLAG_FREEZE_OK) #define XFS_SCRUB_FLAGS_OUT (XFS_SCRUB_OFLAG_CORRUPT | \ XFS_SCRUB_OFLAG_PREEN | \ XFS_SCRUB_OFLAG_XFAIL | \ |