From 00dc417fa3e763345b34ccb6034d72de76eea0a1 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Fri, 3 Oct 2008 17:32:11 -0400 Subject: 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 Signed-off-by: "Theodore Ts'o" Cc: ocfs2-devel@oss.oracle.com Cc: linux-fsdevel@vger.kernel.org --- fs/ocfs2/extent_map.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/ocfs2/extent_map.h') diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index de91e3e41a2..1b97490e1ea 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 */ -- cgit v1.2.3