Commit 0bc88192 authored by Keith Busch's avatar Keith Busch Committed by Jens Axboe

nvme-pci: remove unnecessary nested locking

The nvme pci driver no longer handles completions under the cq lock,
so the nested locking is not necessary.
Signed-off-by: Keith Busch's avatarKeith Busch <keith.busch@intel.com>
Reviewed-by: default avatarJens Axboe <axboe@kernel.dk>
Reviewed-by: Sagi Grimberg's avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 9ba2a5cb
......@@ -2012,13 +2012,7 @@ static void nvme_del_cq_end(struct request *req, blk_status_t error)
if (!error) {
unsigned long flags;
/*
* We might be called with the AQ cq_lock held
* and the I/O queue cq_lock should always
* nest inside the AQ one.
*/
spin_lock_irqsave_nested(&nvmeq->cq_lock, flags,
SINGLE_DEPTH_NESTING);
spin_lock_irqsave(&nvmeq->cq_lock, flags);
nvme_process_cq(nvmeq, &start, &end, -1);
spin_unlock_irqrestore(&nvmeq->cq_lock, flags);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment