[PATCH 16/24] xfs: scrub should cross-reference with the bnobt
"Darrick J. Wong" <[email protected]>
| Newsgroups | gmane.comp.file-systems.xfs.general |
|---|---|
| Message-ID | <[email protected]> |
When we're scrubbing various btrees, cross-reference the records with the bnobt to ensure that we don't also think the space is free. Signed-off-by: Darrick J. Wong <[email protected]> --- libxfs/xfs_alloc.c | 19 +++++++++++++++++++ libxfs/xfs_alloc.h | 3 +++ 2 files changed, 22 insertions(+) diff --git a/libxfs/xfs_alloc.c b/libxfs/xfs_alloc.c index 055d57e..96c6e2e 100644 --- a/libxfs/xfs_alloc.c +++ b/libxfs/xfs_alloc.c @@ -2970,3 +2970,22 @@ xfs_alloc_query_range( return xfs_btree_query_range(cur, &low_brec, &high_brec, xfs_alloc_query_range_helper, &query); } + +/* Is there a record covering a given extent? */ +int +xfs_alloc_has_record( + struct xfs_btree_cur *cur, + xfs_agblock_t bno, + xfs_extlen_t len, + bool *exists) +{ + union xfs_btree_irec low; + union xfs_btree_irec high; + + memset(&low, 0, sizeof(low)); + low.a.ar_startblock = bno; + memset(&high, 0xFF, sizeof(high)); + high.a.ar_startblock = bno + len - 1; + + return xfs_btree_has_record(cur, &low, &high, exists); +} diff --git a/libxfs/xfs_alloc.h b/libxfs/xfs_alloc.h index c3ada6b..b740456 100644 --- a/libxfs/xfs_alloc.h +++ b/libxfs/xfs_alloc.h @@ -222,4 +222,7 @@ int xfs_alloc_query_range(struct xfs_btree_cur *cur, struct xfs_alloc_rec_incore *high_rec, xfs_alloc_query_range_fn fn, void *priv); +int xfs_alloc_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno, + xfs_extlen_t len, bool *exist); + #endif /* __XFS_ALLOC_H__ */ _______________________________________________ xfs mailing list [email protected] http://oss.sgi.com/mailman/listinfo/xfs