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authorMark Fasheh <mfasheh@suse.com>2008-10-03 17:32:11 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-10-03 17:32:11 -0400
commit00dc417fa3e763345b34ccb6034d72de76eea0a1 (patch)
treec50da655dbd6747499f4516280f323b90214af62 /fs/ocfs2/extent_map.h
parentc4b929b85bdb64afacbbf6453b1f2bf7e14c9e89 (diff)
ocfs2: fiemap support
Plug ocfs2 into ->fiemap. Some portions of ocfs2_get_clusters() had to be refactored so that the extent cache can be skipped in favor of going directly to the on-disk records. This makes it easier for us to determine which extent is the last one in the btree. Also, I'm not sure we want to be caching fiemap lookups anyway as they're not directly related to data read/write. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: ocfs2-devel@oss.oracle.com Cc: linux-fsdevel@vger.kernel.org
Diffstat (limited to 'fs/ocfs2/extent_map.h')
-rw-r--r--fs/ocfs2/extent_map.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h
index de91e3e41a22..1b97490e1ea8 100644
--- a/fs/ocfs2/extent_map.h
+++ b/fs/ocfs2/extent_map.h
@@ -50,4 +50,7 @@ int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster,
int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno,
u64 *ret_count, unsigned int *extent_flags);
+int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
+ u64 map_start, u64 map_len);
+
#endif /* _EXTENT_MAP_H */