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xfs: add scrub cross-referencing helpers for the free space btrees

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Add a couple of functions to the free space btrees that will be used
to cross-reference metadata against the bnobt/cntbt, and a generic
btree function that provides the real implementation.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong
2018-01-16 18:52:12 -08:00
parent c468562879
commit ce1d802e6a
4 changed files with 62 additions and 1 deletions
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10
fs/xfs/libxfs/xfs_alloc.h
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@@ -197,6 +197,13 @@ xfs_free_extent(
struct xfs_owner_info *oinfo, /* extent owner */
enum xfs_ag_resv_type type); /* block reservation type */
int /* error */
xfs_alloc_lookup_le(
struct xfs_btree_cur *cur, /* btree cursor */
xfs_agblock_t bno, /* starting block of extent */
xfs_extlen_t len, /* length of extent */
int *stat); /* success/failure */
int /* error */
xfs_alloc_lookup_ge(
struct xfs_btree_cur *cur, /* btree cursor */
@@ -237,4 +244,7 @@ bool xfs_verify_agbno(struct xfs_mount *mp, xfs_agnumber_t agno,
xfs_agblock_t agbno);
bool xfs_verify_fsbno(struct xfs_mount *mp, xfs_fsblock_t fsbno);
int xfs_alloc_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno,
xfs_extlen_t len, bool *exist);
#endif /* __XFS_ALLOC_H__ */