diff options
| author | David Milburn <dmilburn@redhat.com> | 2020-05-18 13:59:55 -0500 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-05-27 07:12:40 +0200 |
| commit | 1cdf9f7670a7d74e27177d5c390c2f8b3b9ba338 (patch) | |
| tree | f229000533cdf81ceac7ecd14e30102f9c4b2a0b /drivers/nvme | |
| parent | 64f5e9cdd711b030b05062c17b2ecfbce890cf4c (diff) | |
| download | linux-1cdf9f7670a7d74e27177d5c390c2f8b3b9ba338.tar.bz2 | |
nvmet: cleanups the loop in nvmet_async_events_process
Based-on-a-patch-by: Christoph Hellwig <hch@infradead.org>
Tested-by: Yi Zhang <yi.zhang@redhat.com>
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/core.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 48f5123d875b..6392bcd30bd7 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -134,15 +134,10 @@ static void nvmet_async_events_process(struct nvmet_ctrl *ctrl, u16 status) struct nvmet_async_event *aen; struct nvmet_req *req; - while (1) { - mutex_lock(&ctrl->lock); - aen = list_first_entry_or_null(&ctrl->async_events, - struct nvmet_async_event, entry); - if (!aen || !ctrl->nr_async_event_cmds) { - mutex_unlock(&ctrl->lock); - break; - } - + mutex_lock(&ctrl->lock); + while (ctrl->nr_async_event_cmds && !list_empty(&ctrl->async_events)) { + aen = list_first_entry(&ctrl->async_events, + struct nvmet_async_event, entry); req = ctrl->async_event_cmds[--ctrl->nr_async_event_cmds]; if (status == 0) nvmet_set_result(req, nvmet_async_event_result(aen)); @@ -153,7 +148,9 @@ static void nvmet_async_events_process(struct nvmet_ctrl *ctrl, u16 status) mutex_unlock(&ctrl->lock); trace_nvmet_async_event(ctrl, req->cqe->result.u32); nvmet_req_complete(req, status); + mutex_lock(&ctrl->lock); } + mutex_unlock(&ctrl->lock); } static void nvmet_async_events_free(struct nvmet_ctrl *ctrl) |