When ext4_ext_insert_extent() fails to insert new blocks
we should free just the allocated blocks.
Signed-off-by: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 03c777a..b9ce241 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2099,8 +2099,12 @@
ext4_ext_store_pblock(&newex, newblock);
newex.ee_len = cpu_to_le16(allocated);
err = ext4_ext_insert_extent(handle, inode, path, &newex);
- if (err)
+ if (err) {
+ /* free data blocks we just allocated */
+ ext4_free_blocks(handle, inode, ext_pblock(&newex),
+ le16_to_cpu(newex.ee_len));
goto out2;
+ }
if (extend_disksize && inode->i_size > EXT4_I(inode)->i_disksize)
EXT4_I(inode)->i_disksize = inode->i_size;