luck/tmp_suning_uos_patched
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block: don't use bio_has_data() in the completion path

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We should just check for rq->bio, as that is really the information
we are looking for. Even if the bio attached doesn't carry data,
we still need to do IO post processing on it.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2008-08-26 13:34:34 +02:00
parent ab780f1ece
commit 605401618c
1 changed files with 2 additions and 3 deletions
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5
block/blk-core.c
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@ -1817,7 +1817,7 @@ static int blk_end_io(struct request *rq, int error, unsigned int nr_bytes,
struct request_queue *q = rq->q;
unsigned long flags = 0UL;
if (bio_has_data(rq->bio) || blk_discard_rq(rq)) {
if (rq->bio) {
if (__end_that_request_first(rq, error, nr_bytes))
return 1;
@ -1875,8 +1875,7 @@ EXPORT_SYMBOL_GPL(blk_end_request);
**/
int __blk_end_request(struct request *rq, int error, unsigned int nr_bytes)
{
if ((bio_has_data(rq->bio) || blk_discard_rq(rq)) &&
__end_that_request_first(rq, error, nr_bytes))
if (rq->bio && __end_that_request_first(rq, error, nr_bytes))
return 1;
add_disk_randomness(rq->rq_disk);