[PATCH 07/24] xfs: scrub AGF and AGFL

"Darrick J. Wong" <[email protected]>
Newsgroups gmane.comp.file-systems.xfs.general
Message-ID <[email protected]>
Check the block references in the AGF and AGFL headers to make sure
they make sense.

Signed-off-by: Darrick J. Wong <[email protected]>
---
 libxfs/xfs_alloc.c |    2 +-
 libxfs/xfs_alloc.h |    2 ++
 libxfs/xfs_fs.h    |    4 +++-
 3 files changed, 6 insertions(+), 2 deletions(-)


diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c
index 0f93016..055d57e 100644
--- a/libxfs/xfs_alloc.c
+++ b/libxfs/xfs_alloc.c
@@ -625,7 +625,7 @@ const struct xfs_buf_ops xfs_agfl_buf_ops = {
 /*
  * Read in the allocation group free block array.
  */
-STATIC int				/* error */
+int					/* error */
 xfs_alloc_read_agfl(
 	xfs_mount_t	*mp,		/* mount point structure */
 	xfs_trans_t	*tp,		/* transaction pointer */
diff --git a/libxfs/xfs_alloc.h b/libxfs/xfs_alloc.h
index 0b00de0..c3ada6b 100644
--- a/libxfs/xfs_alloc.h
+++ b/libxfs/xfs_alloc.h
@@ -204,6 +204,8 @@ xfs_alloc_get_rec(
 
 int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp,
 			xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
+int xfs_alloc_read_agfl(struct xfs_mount *mp, struct xfs_trans *tp,
+			xfs_agnumber_t agno, struct xfs_buf **bpp);
 int xfs_alloc_fix_freelist(struct xfs_alloc_arg *args, int flags);
 int xfs_free_extent_fix_freelist(struct xfs_trans *tp, xfs_agnumber_t agno,
 		struct xfs_buf **agbp);
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index 64c7b43..dbdd346 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -560,7 +560,9 @@ struct xfs_scrub_metadata {
  * Metadata types and flags for scrub operation.
  */
 #define XFS_SCRUB_TYPE_SB	0	/* superblock */
-#define XFS_SCRUB_TYPE_MAX	0
+#define XFS_SCRUB_TYPE_AGF	1	/* AG free header */
+#define XFS_SCRUB_TYPE_AGFL	2	/* AG free list */
+#define XFS_SCRUB_TYPE_MAX	2
 
 #define XFS_SCRUB_FLAGS_ALL	0x0	/* no flags yet */
 

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