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authorMiao Xie <miaox@cn.fujitsu.com>2012-12-21 09:17:45 +0000
committerJosef Bacik <jbacik@fusionio.com>2013-02-20 09:36:43 -0500
commit4eee4fa4f8ab8c2b2623c22be4c3cb91d525aa57 (patch)
tree683eda1d306b23d1a82a918d869850256237c432 /fs/btrfs/disk-io.c
parentBtrfs: flush all dirty inodes if writeback can not start (diff)
downloadlinux-dev-4eee4fa4f8ab8c2b2623c22be4c3cb91d525aa57.tar.xz
linux-dev-4eee4fa4f8ab8c2b2623c22be4c3cb91d525aa57.zip
Btrfs: use wrapper page_offset
Use wrapper page_offset to get byte-offset into filesystem object for page. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4438aac4947f..a762f9137610 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -420,7 +420,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root,
static int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
{
struct extent_io_tree *tree;
- u64 start = (u64)page->index << PAGE_CACHE_SHIFT;
+ u64 start = page_offset(page);
u64 found_start;
struct extent_buffer *eb;