diff options
| author | kaoudis <kaoudis@colorado.edu> | 2015-01-15 07:01:58 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-22 07:51:57 +0300 |
| commit | 121c7ad4ef3f3a9e697c4b8b78d74e4d6847d9e4 (patch) | |
| tree | 147d73c726847fdf27b77e32bb3acf401200732d /drivers/block | |
| parent | 227290b4690510148d1f40f277c6c3a181fcb440 (diff) | |
| download | linux-121c7ad4ef3f3a9e697c4b8b78d74e4d6847d9e4.tar.xz | |
NVMe: within nvme_free_queues(), delete RCU sychro/deferred free
Converting from to blk-queue got rid of the driver's RCU
locking-on-queue, so removing unnecessary RCU locking-on-queue
artefacts.
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Kelly Nicole Kaoudis <kaoudis@colorado.edu>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/nvme-core.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c index f7d083bb3bd5..f4aa64160838 100644 --- a/drivers/block/nvme-core.c +++ b/drivers/block/nvme-core.c @@ -1108,21 +1108,14 @@ static void nvme_free_queue(struct nvme_queue *nvmeq) static void nvme_free_queues(struct nvme_dev *dev, int lowest) { - LLIST_HEAD(q_list); - struct nvme_queue *nvmeq, *next; - struct llist_node *entry; int i; for (i = dev->queue_count - 1; i >= lowest; i--) { struct nvme_queue *nvmeq = dev->queues[i]; - llist_add(&nvmeq->node, &q_list); dev->queue_count--; dev->queues[i] = NULL; - } - synchronize_rcu(); - entry = llist_del_all(&q_list); - llist_for_each_entry_safe(nvmeq, next, entry, node) nvme_free_queue(nvmeq); + } } /** |