[PATCH]fix delalloc write_begin failure case

Mingming Cao
2008-05-09T23:45:39Z

Need to unlock and release the page from page cache if the delalloc
write_begin failed.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
---
fs/ext4/inode.c | 5 +++++
1 file changed, 5 insertions(+)

Index: linux-2.6.26-rc1/fs/ext4/inode.c
===================================================================
--- linux-2.6.26-rc1.orig/fs/ext4/inode.c 2008-05-09 16:21:49.000000000 -0700
+++ linux-2.6.26-rc1/fs/ext4/inode.c 2008-05-09 16:25:26.000000000 -0700
@@ -1518,6 +1518,11 @@ static int ext4_da_write_begin(struct fi

ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
ext4_da_get_block_prep);
+ if (ret < 0) {
+ unlock_page(page);
+ page_cache_release(page);
+ }
+
return ret;
}