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[2/5] xfs: allow userspace to rebuild metadata structures

Message ID 169567910377.2318286.9674599819125611592.stgit@frogsfrogsfrogs (mailing list archive)
State New, archived
Headers show
Series libxfs: sync with 6.6 | expand

Commit Message

Darrick J. Wong Sept. 25, 2023, 9:58 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Source kernel commit: 5c83df2e54b6af870e3e02ccd2a8ecd54e36668c

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>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
 libxfs/xfs_fs.h |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
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Patch

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index 2cbf9ea39b8..6360073865d 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -743,7 +743,11 @@  struct xfs_scrub_metadata {
  */
 #define XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED (1u << 7)
 
-#define XFS_SCRUB_FLAGS_IN	(XFS_SCRUB_IFLAG_REPAIR)
+/* i: Rebuild the data structure. */
+#define XFS_SCRUB_IFLAG_FORCE_REBUILD	(1u << 8)
+
+#define XFS_SCRUB_FLAGS_IN	(XFS_SCRUB_IFLAG_REPAIR | \
+				 XFS_SCRUB_IFLAG_FORCE_REBUILD)
 #define XFS_SCRUB_FLAGS_OUT	(XFS_SCRUB_OFLAG_CORRUPT | \
 				 XFS_SCRUB_OFLAG_PREEN | \
 				 XFS_SCRUB_OFLAG_XFAIL | \