[ 48/62] ext4: fix endianness breakage in ext4_split_extent_at()
From: Greg KH
Date: Tue Apr 24 2012 - 18:36:26 EST
3.3-stable review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
commit af1584f570b19b0285e4402a0b54731495d31784 upstream.
->ee_len is __le16, so assigning cpu_to_le32() to it is going to do
Bad Things(tm) on big-endian hosts...
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Ted Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/extents.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2811,7 +2811,7 @@ static int ext4_split_extent_at(handle_t
if (err)
goto fix_extent_len;
/* update the extent length and mark as initialized */
- ex->ee_len = cpu_to_le32(ee_len);
+ ex->ee_len = cpu_to_le16(ee_len);
ext4_ext_try_to_merge(inode, path, ex);
err = ext4_ext_dirty(handle, inode, path + depth);
goto out;
--
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