From: Amir Goldstein <amir73il@xxxxxxxxxxxx>
On active snapshot page read, the function ext4_snapshot_get_block()
is called to map the page to a disk block. If the page is not mapped
in the snapshot file a direct mapping to the block device is returned.
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxxxxx>
Signed-off-by: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
---
fs/ext4/inode.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 4ec5f02..3acdbe5 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4181,8 +4181,7 @@ static int ext4_no_writepage(struct page *page,
* the snapshot COW bitmaps and a few initial blocks copied on snapshot_take().
*/
static const struct address_space_operations ext4_snapfile_aops = {
- .readpage = ext4_readpage,
- .readpages = ext4_readpages,
+ .readpage = ext4_snapshot_readpage,
.writepage = ext4_no_writepage,
.bmap = ext4_bmap,
.invalidatepage = ext4_invalidatepage,
--
1.7.0.4
--
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