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authorMark Fasheh <mark.fasheh@oracle.com>2007-02-09 20:24:12 -0800
committerMark Fasheh <mark.fasheh@oracle.com>2007-04-26 15:02:08 -0700
commit9517bac6cc7a7aa4fee63cb38a32cb6014e264c7 (patch)
tree3cac0c18d0cacc316e0e8a60f483282d6f991779 /fs/ocfs2/extent_map.c
parent89488984ac23b0580f959b9ee549f2fcb1c2f194 (diff)
downloadop-kernel-dev-9517bac6cc7a7aa4fee63cb38a32cb6014e264c7.zip
op-kernel-dev-9517bac6cc7a7aa4fee63cb38a32cb6014e264c7.tar.gz
ocfs2: teach ocfs2_file_aio_write() about sparse files
Unfortunately, ocfs2 can no longer make use of generic_file_aio_write_nlock() because allocating writes will require zeroing of pages adjacent to the I/O for cluster sizes greater than page size. Implement a custom file write here, which can order page locks for zeroing. This also has the advantage that cluster locks can easily be ordered outside of the page locks. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/extent_map.c')
-rw-r--r--fs/ocfs2/extent_map.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 3b4322f..937c272 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -67,8 +67,8 @@ static int ocfs2_search_extent_list(struct ocfs2_extent_list *el,
return ret;
}
-static int ocfs2_get_clusters(struct inode *inode, u32 v_cluster,
- u32 *p_cluster, u32 *num_clusters)
+int ocfs2_get_clusters(struct inode *inode, u32 v_cluster,
+ u32 *p_cluster, u32 *num_clusters)
{
int ret, i;
struct buffer_head *di_bh = NULL;
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