lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ocfs2: fiemap support

Browse Source 
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
This commit is contained in:
Mark Fasheh
2008-10-03 17:32:11 -04:00
committed by Theodore Ts'o
parent c4b929b85b
commit 00dc417fa3
5 changed files with 312 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
fs/ocfs2/alloc.c
View File

@ -989,15 +989,6 @@ out:
return ret;
}
/*
* This is only valid for leaf nodes, which are the only ones that can
* have empty extents anyway.
*/
static inline int ocfs2_is_empty_extent(struct ocfs2_extent_rec *rec)
{
return !rec->e_leaf_clusters;
}
/*
* This function will discard the rightmost extent record.
*/