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Only call bi_end_io once for any bio

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Currently bi_end_io can be called multiple times as sub-requests
complete.  However no ->bi_end_io function wants to know about that.
So only call when the bio is complete.

Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
 ./fs/bio.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff .prev/fs/bio.c ./fs/bio.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
NeilBrown 2007-09-27 12:46:12 +02:00 committed by Jens Axboe
parent d24517d793
commit 9cc54d40b8
1 changed files with 3 additions and 1 deletions
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4
fs/bio.c
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@ -1018,6 +1018,8 @@ void bio_endio(struct bio *bio, unsigned int bytes_done, int error)
{
if (error)
clear_bit(BIO_UPTODATE, &bio->bi_flags);
else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
error = -EIO;
if (unlikely(bytes_done > bio->bi_size)) {
printk("%s: want %u bytes done, only %u left\n", __FUNCTION__,
@ -1028,7 +1030,7 @@ void bio_endio(struct bio *bio, unsigned int bytes_done, int error)
bio->bi_size -= bytes_done;
bio->bi_sector += (bytes_done >> 9);
if (bio->bi_end_io)
if (bio->bi_size && bio->bi_end_io)
bio->bi_end_io(bio, bytes_done, error);
}