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authorDarrick J. Wong <darrick.wong@oracle.com>2017-03-28 14:56:37 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2017-04-03 15:18:17 -0700
commite89c041338ed6ef2694e6465ca1ba033e0a2978c (patch)
tree7866a101041335d77127b2258e5759b61d1d1e60 /fs/xfs/libxfs/xfs_rmap.h
parentfb3c3de2f65c007f3ee50538ea131f5c4603c7bc (diff)
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xfs: implement the GETFSMAP ioctl
Introduce a new ioctl that uses the reverse mapping btree to return information about the physical layout of the filesystem. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_rmap.h')
-rw-r--r--fs/xfs/libxfs/xfs_rmap.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h
index faf2c1a2e63b..98f908fea103 100644
--- a/fs/xfs/libxfs/xfs_rmap.h
+++ b/fs/xfs/libxfs/xfs_rmap.h
@@ -214,5 +214,7 @@ int xfs_rmap_find_left_neighbor(struct xfs_btree_cur *cur, xfs_agblock_t bno,
int xfs_rmap_lookup_le_range(struct xfs_btree_cur *cur, xfs_agblock_t bno,
uint64_t owner, uint64_t offset, unsigned int flags,
struct xfs_rmap_irec *irec, int *stat);
+int xfs_rmap_compare(const struct xfs_rmap_irec *a,
+ const struct xfs_rmap_irec *b);
#endif /* __XFS_RMAP_H__ */