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Btrfs: use wrapper page_offset

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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>
This commit is contained in:
Miao Xie
2012-12-21 09:17:45 +00:00
committed by Josef Bacik
parent da633a4217
commit 4eee4fa4f8
4 changed files with 15 additions and 18 deletions
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2
fs/btrfs/disk-io.c
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@@ -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;