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xfs: create helpers to scan an allocation group

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Add some helpers to enable us to lock an AG's headers, create btree
cursors for all btrees in that allocation group, and clean up
afterwards.

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
2017-10-17 21:37:38 -07:00
parent 37f3fa7f16
commit b6c1beb967
4 changed files with 214 additions and 0 deletions
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10
fs/xfs/scrub/common.h
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@@ -77,4 +77,14 @@ void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc);
/* Setup functions */
int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip);
void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa);
int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
struct xfs_scrub_ag *sa);
int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
struct xfs_buf **agi, struct xfs_buf **agf,
struct xfs_buf **agfl);
void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa);
int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc,
struct xfs_scrub_ag *sa);
#endif /* __XFS_SCRUB_COMMON_H__ */