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xfs: provide a query_range function for freespace btrees

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Implement a query_range function for the bnobt and cntbt.  This will
be used for getfsmap fallback if there is no rmapbt and by the online
scrub and repair code.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong
2017-03-28 14:56:35 -07:00
parent 08438b1e38
commit 2d520bfaa2
2 changed files with 52 additions and 0 deletions
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10
fs/xfs/libxfs/xfs_alloc.h
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@@ -219,4 +219,14 @@ int xfs_free_extent_fix_freelist(struct xfs_trans *tp, xfs_agnumber_t agno,
xfs_extlen_t xfs_prealloc_blocks(struct xfs_mount *mp);
typedef int (*xfs_alloc_query_range_fn)(
struct xfs_btree_cur *cur,
struct xfs_alloc_rec_incore *rec,
void *priv);
int xfs_alloc_query_range(struct xfs_btree_cur *cur,
struct xfs_alloc_rec_incore *low_rec,
struct xfs_alloc_rec_incore *high_rec,
xfs_alloc_query_range_fn fn, void *priv);
#endif /* __XFS_ALLOC_H__ */