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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>
This commit is contained in:
David Milburn 2020-05-18 13:59:55 -05:00 committed by Christoph Hellwig
parent 64f5e9cdd7
commit 1cdf9f7670
1 changed files with 6 additions and 9 deletions
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15
drivers/nvme/target/core.c
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@ -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)