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ext4: note the error in ext4_end_bio() 

commit 9503c67c93 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@intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthew Wilcox 2014-04-07 10:54:20 -04:00 committed by Greg Kroah-Hartman
parent 549b3cf1c4
commit 6309a184a6
1 changed files with 3 additions and 2 deletions
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5
fs/ext4/page-io.c
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@ -308,13 +308,14 @@ static void ext4_end_bio(struct bio *bio, int error)
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) {