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authorDarrick J. Wong <djwong@kernel.org>2021-09-01 11:25:40 -0700
committerDarrick J. Wong <djwong@kernel.org>2021-12-15 17:29:29 -0800
commitbb3fa72be19cdab77e76e3ead6fe171b279e968e (patch)
tree62235a8c196baf9cd8ee23721cd8bf73219f2d3e /fs/xfs/xfs_ioctl.c
parent9ce7cdaa061e17128626e0b880adfed00455931d (diff)
xfs: allow userspace to rebuild metadata structuresdefrag-freespace_2021-12-15
Add a new (superuser-only) flag to the online metadata repair ioctl to force it to rebuild structures, even if they're not broken. We will use this to move metadata structures out of the way during a free space defragmentation operation. Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/xfs_ioctl.c')
-rw-r--r--fs/xfs/xfs_ioctl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 6c37d201912f..97b1f9303c8f 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1810,7 +1810,8 @@ xfs_ioc_scrub_metadata(
if (copy_from_user(&scrub, arg, sizeof(scrub)))
return -EFAULT;
- if ((scrub.sm_flags & XFS_SCRUB_IFLAG_FREEZE_OK) &&
+ if ((scrub.sm_flags & (XFS_SCRUB_IFLAG_FREEZE_OK |
+ XFS_SCRUB_IFLAG_FORCE_REBUILD)) &&
!capable(CAP_SYS_ADMIN))
return -EPERM;