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block: use rq complete marking in blk_abort_request()

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We cannot abort a request if we raced with the timeout handler already,
or with the IO completion. So make blk_abort_request() mark the request
as complete, and only continue if we succeeded.

Found and suggested by Mike Anderson <andmike@linux.vnet.ibm.com>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2008-09-16 09:54:11 -07:00
parent 581d4e28d9
commit 7ba1fbaa4a
1 changed files with 2 additions and 0 deletions
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2
block/blk-timeout.c
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@ -158,6 +158,8 @@ void blk_rq_timed_out_timer(unsigned long data)
*/
void blk_abort_request(struct request *req)
{
if (blk_mark_rq_complete(req))
return;
blk_delete_timer(req);
blk_rq_timed_out(req);
}