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authorTao Ma <tao.ma@oracle.com>2009-08-11 14:33:14 +0800
committerJoel Becker <joel.becker@oracle.com>2009-09-22 20:09:33 -0700
commite73a819db9c2d6c4065b7cab7374709b6939e8f1 (patch)
tree40968bc5b37d3b55e382267683c9612d4697f036 /fs/ocfs2/extent_map.c
parente2e9f6082b5ff099978774d5c0148e062344c2f9 (diff)
downloadlinux-e73a819db9c2d6c4065b7cab7374709b6939e8f1.tar.bz2
ocfs2: Add support for incrementing refcount in the tree.
Given a physical cpos and length, increment the refcount in the tree. If the extent has not been seen before, a refcount record is created for it. Refcount records may be merged or split by this operation. Signed-off-by: Tao Ma <tao.ma@oracle.com>
Diffstat (limited to 'fs/ocfs2/extent_map.c')
-rw-r--r--fs/ocfs2/extent_map.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index dc9482cb463a..40b51056bb32 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -353,11 +353,11 @@ static int ocfs2_search_for_hole_index(struct ocfs2_extent_list *el,
* eb_bh is NULL. Otherwise, eb_bh should point to the extent block
* containing el.
*/
-static int ocfs2_figure_hole_clusters(struct inode *inode,
- struct ocfs2_extent_list *el,
- struct buffer_head *eb_bh,
- u32 v_cluster,
- u32 *num_clusters)
+int ocfs2_figure_hole_clusters(struct ocfs2_caching_info *ci,
+ struct ocfs2_extent_list *el,
+ struct buffer_head *eb_bh,
+ u32 v_cluster,
+ u32 *num_clusters)
{
int ret, i;
struct buffer_head *next_eb_bh = NULL;
@@ -375,7 +375,7 @@ static int ocfs2_figure_hole_clusters(struct inode *inode,
if (le64_to_cpu(eb->h_next_leaf_blk) == 0ULL)
goto no_more_extents;
- ret = ocfs2_read_extent_block(INODE_CACHE(inode),
+ ret = ocfs2_read_extent_block(ci,
le64_to_cpu(eb->h_next_leaf_blk),
&next_eb_bh);
if (ret) {
@@ -456,7 +456,8 @@ static int ocfs2_get_clusters_nocache(struct inode *inode,
* field.
*/
if (hole_len) {
- ret = ocfs2_figure_hole_clusters(inode, el, eb_bh,
+ ret = ocfs2_figure_hole_clusters(INODE_CACHE(inode),
+ el, eb_bh,
v_cluster, &len);
if (ret) {
mlog_errno(ret);