From 9517bac6cc7a7aa4fee63cb38a32cb6014e264c7 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Fri, 9 Feb 2007 20:24:12 -0800 Subject: 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 --- fs/ocfs2/extent_map.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ocfs2/extent_map.h') diff --git a/fs/ocfs2/extent_map.h b/fs/ocfs2/extent_map.h index 036e2325144..625d0ee5e04 100644 --- a/fs/ocfs2/extent_map.h +++ b/fs/ocfs2/extent_map.h @@ -25,6 +25,8 @@ #ifndef _EXTENT_MAP_H #define _EXTENT_MAP_H +int ocfs2_get_clusters(struct inode *inode, u32 v_cluster, u32 *p_cluster, + u32 *num_clusters); int ocfs2_extent_map_get_blocks(struct inode *inode, u64 v_blkno, u64 *p_blkno, int *ret_count); -- cgit v1.2.3