This is a note to let you know that I've just added the patch titled
ext4: note the error in ext4_end_bio()
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-note-the-error-in-ext4_end_bio.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 9503c67c93ed0b95ba62d12d1fd09da6245dbdd6 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Date: Mon, 7 Apr 2014 10:54:20 -0400
Subject: ext4: note the error in ext4_end_bio()
From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
commit 9503c67c93ed0b95ba62d12d1fd09da6245dbdd6 upstream.
ext4_end_bio() currently throws away the error that it receives. Chances
are this is part of a spate of errors, one of which will end up getting
the error returned to userspace somehow, but we shouldn't take that risk.
Also print out the errno to aid in debug.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@xxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/page-io.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -308,13 +308,14 @@ static void ext4_end_bio(struct bio *bio
if (error) {
struct inode *inode = io_end->inode;
- ext4_warning(inode->i_sb, "I/O error writing to inode %lu "
+ ext4_warning(inode->i_sb, "I/O error %d writing to inode %lu "
"(offset %llu size %ld starting block %llu)",
- inode->i_ino,
+ error, inode->i_ino,
(unsigned long long) io_end->offset,
(long) io_end->size,
(unsigned long long)
bi_sector >> (inode->i_blkbits - 9));
+ mapping_set_error(inode->i_mapping, error);
}
if (io_end->flag & EXT4_IO_END_UNWRITTEN) {
Patches currently in stable-queue which might be from willy@xxxxxxxxxxxxxxx are
queue-3.14/ext4-note-the-error-in-ext4_end_bio.patch
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