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| author | Hannes Reinecke <hare@suse.de> | 2021-05-26 18:23:15 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2021-06-02 10:06:53 +0300 |
| commit | a6c144f3d2e230f2b3ac5ed8c51e0f0391556197 (patch) | |
| tree | 161825fb24ebecc1fbced384b6eaf081906a2e1a /drivers/nvme/target/loop.c | |
| parent | 12b2aaadb6d5ef77434e8db21f469f46fe2d392e (diff) | |
| download | linux-a6c144f3d2e230f2b3ac5ed8c51e0f0391556197.tar.xz | |
nvme-loop: reset queue count to 1 in nvme_loop_destroy_io_queues()
The queue count is increased in nvme_loop_init_io_queues(), so we
need to reset it to 1 at the end of nvme_loop_destroy_io_queues().
Otherwise the function is not re-entrant safe, and crash will happen
during concurrent reset and remove calls.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/target/loop.c')
| -rw-r--r-- | drivers/nvme/target/loop.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index cb30cb942e1d..93fca31e5043 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -299,6 +299,7 @@ static void nvme_loop_destroy_io_queues(struct nvme_loop_ctrl *ctrl) clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[i].flags); nvmet_sq_destroy(&ctrl->queues[i].nvme_sq); } + ctrl->ctrl.queue_count = 1; } static int nvme_loop_init_io_queues(struct nvme_loop_ctrl *ctrl) |