A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

nvme-pci: remove unnecessary nested locking

Browse source 
The nvme pci driver no longer handles completions under the cq lock,
so the nested locking is not necessary.

Signed-off-by: Keith Busch <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Keith Busch 2018-06-06 08:13:04 -06:00 • committed by Jens Axboe
commit 0bc8819203
1 changed files with 1 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
drivers/nvme/host/pci.c
View file

@ -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);