From 25d14f983f70ddbeb15fa2d0f32f6b70bca42a15 Mon Sep 17 00:00:00 2001 From: Amit Arora Date: Thu, 24 May 2007 13:04:13 -0400 Subject: ext4: Extent overlap bugfix This patch adds a check for overlap of extents and cuts short the new extent to be inserted, if there is a chance of overlap. Signed-off-by: Amit Arora Signed-off-by: "Theodore Ts'o" --- include/linux/ext4_fs_extents.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/ext4_fs_extents.h') diff --git a/include/linux/ext4_fs_extents.h b/include/linux/ext4_fs_extents.h index da23233a662..acfe59740b0 100644 --- a/include/linux/ext4_fs_extents.h +++ b/include/linux/ext4_fs_extents.h @@ -190,6 +190,7 @@ ext4_ext_invalidate_cache(struct inode *inode) extern int ext4_extent_tree_init(handle_t *, struct inode *); extern int ext4_ext_calc_credits_for_insert(struct inode *, struct ext4_ext_path *); +extern unsigned int ext4_ext_check_overlap(struct inode *, struct ext4_extent *, struct ext4_ext_path *); extern int ext4_ext_insert_extent(handle_t *, struct inode *, struct ext4_ext_path *, struct ext4_extent *); extern int ext4_ext_walk_space(struct inode *, unsigned long, unsigned long, ext_prepare_callback, void *); extern struct ext4_ext_path * ext4_ext_find_extent(struct inode *, int, struct ext4_ext_path *); -- cgit v1.2.3