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authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>2009-06-02 10:44:01 +0400
committerJens Axboe <jens.axboe@oracle.com>2009-06-02 10:44:01 +0400
commit53c663ce0f39ba8e8ef652e400b317bc60ac7f19 (patch)
tree5d72723bbc35e4b35734fe770b5022192c4f92c9 /block
parentc143dc903d7c0b15f5052e00b2c7de33a8b4299c (diff)
downloadlinux-53c663ce0f39ba8e8ef652e400b317bc60ac7f19.tar.xz
block: fix a possible oops on elv_abort_queue()
I found one more mis-conversion to the 'request is always dequeued when completing' model in elv_abort_queue() during code inspection. Although I haven't hit any problem caused by this mis-conversion yet and just done compile/boot test, please apply if you have no problem. Request must be dequeued when it completes. However, elv_abort_queue() completes requests without dequeueing. This will cause oops in the __blk_end_request_all(). This patch fixes the oops. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
-rw-r--r--block/elevator.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/block/elevator.c b/block/elevator.c
index bd78f693fcf2..a029cfed80da 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -813,6 +813,11 @@ void elv_abort_queue(struct request_queue *q)
rq = list_entry_rq(q->queue_head.next);
rq->cmd_flags |= REQ_QUIET;
trace_block_rq_abort(q, rq);
+ /*
+ * Mark this request as started so we don't trigger
+ * any debug logic in the end I/O path.
+ */
+ blk_start_request(rq);
__blk_end_request_all(rq, -EIO);
}
}