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NVMe: Fix device probe waiting on kthread

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If we ever do parallel device probing, we need to wake up all processes
waiting for nvme kthread to start, not just one. This is currently
serialized so the bug is not reachable today, but fixing this anyway in
the hopes we implement parallel or asynchronous probe in the future.

Signed-off-by: Keith Busch <[email protected]>
Signed-off-by: Matthew Wilcox <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Keith Busch 2014-09-22 13:46:19 -06:00 • committed by Jens Axboe
commit 387caa5a2b
1 changed files with 1 additions and 1 deletions
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2
drivers/block/nvme-core.c
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@ -2787,7 +2787,7 @@ static int nvme_dev_start(struct nvme_dev *dev)
if (start_thread) {
nvme_thread = kthread_run(nvme_kthread, NULL, "nvme");
wake_up(&nvme_kthread_wait);
wake_up_all(&nvme_kthread_wait);
} else
wait_event_killable(nvme_kthread_wait, nvme_thread);