Josef Bacik
2011-Mar-22 15:48 UTC
[PATCH] Btrfs: mark the bio with an error if we have a failure in dio
I noticed that dio_end_io calls the appropriate endio function with an error, but the endio functions don''t actually do anything with that error, they assume that if there was an error then the bio will not be uptodate. So if we had checksum failures we would never pass back EIO. So if there is an error in our endio functions make sure to clear the uptodate flag on the bio. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> --- fs/btrfs/inode.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 570cd44..e9813bd 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5744,6 +5744,10 @@ static void btrfs_endio_direct_read(struct bio *bio, int err) kfree(dip->csums); kfree(dip); + + /* If we had a csum failure make sure to clear the uptodate flag */ + if (err) + clear_bit(BIO_UPTODATE, &bio->bi_flags); dio_end_io(bio, err); } @@ -5845,6 +5849,10 @@ out_done: kfree(dip->csums); kfree(dip); + + /* If we had an error make sure to clear the uptodate flag */ + if (err) + clear_bit(BIO_UPTODATE, &bio->bi_flags); dio_end_io(bio, err); } -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html