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| author | Tao Ma <tao.ma@oracle.com> | 2009-08-11 14:33:14 +0800 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2009-09-22 20:09:33 -0700 |
| commit | e73a819db9c2d6c4065b7cab7374709b6939e8f1 (patch) | |
| tree | 40968bc5b37d3b55e382267683c9612d4697f036 /fs/ocfs2/extent_map.h | |
| parent | e2e9f6082b5ff099978774d5c0148e062344c2f9 (diff) | |
| download | lwn-e73a819db9c2d6c4065b7cab7374709b6939e8f1.tar.gz lwn-e73a819db9c2d6c4065b7cab7374709b6939e8f1.zip | |
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.h')
| -rw-r--r-- | fs/ocfs2/extent_map.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index b7dd9731b462..9942f47efda7 100644 --- a/fs/ocfs2/extent_map.h +++ b/fs/ocfs2/extent_map.h @@ -61,6 +61,11 @@ int ocfs2_read_virt_blocks(struct inode *inode, u64 v_block, int nr, struct buffer_head *bhs[], int flags, int (*validate)(struct super_block *sb, struct buffer_head *bh)); +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); static inline int ocfs2_read_virt_block(struct inode *inode, u64 v_block, struct buffer_head **bh, int (*validate)(struct super_block *sb, |