Thanks ming.
Tested-by: Yi Zhang <yi.zhang@xxxxxxxxxx>
Best Regards,
Yi Zhang
----- Original Message -----
From: "Ming Lei" <ming.lei@xxxxxxxxxx>
To: linux-nvme@xxxxxxxxxxxxxxxxxxx, "Christoph Hellwig" <hch@xxxxxx>, "Jens Axboe" <axboe@xxxxxx>, linux-block@xxxxxxxxxxxxxxx
Cc: "Yi Zhang" <yi.zhang@xxxxxxxxxx>, "Sagi Grimberg" <sagi@xxxxxxxxxxx>, "Ming Lei" <ming.lei@xxxxxxxxxx>, "Keith Busch" <keith.busch@xxxxxxxxx>, "Johannes Thumshirn" <jthumshirn@xxxxxxx>, "Bart Van Assche" <bart.vanassche@xxxxxxxxxxx>
Sent: Thursday, December 14, 2017 10:30:57 AM
Subject: [PATCH V2 0/6] blk-mq: fix race related with device deletion/reset/switching sched
Hi,
The 1st patch fixes one kernel oops triggered by IOs vs. deleting SCSI
device, and this issue can be triggered easily on scsi_debug.
The other 5 patch fixes recent Yi Zhang's reports about his NVMe stress
tests, most of them are related with switching io sched, NVMe reset or
updating nr_hw_queues.
V2:
- address stale queue mapping in blk_mq_update_queue_map(), instead
of PCI transport, since such issue exists on other transport too,
as suggested by Christoph
- avoid to introduce nvme_admin_queue_rq() since the nvme queue can
be got from hctx->driver_data, which is reliable
Thanks,
Ming
Ming Lei (6):
blk-mq: quiesce queue before freeing queue
blk-mq: support concurrent blk_mq_quiesce_queue()
blk-mq: quiesce queue during switching io sched and updating
nr_requests
blk-mq: avoid to map CPU into stale hw queue
blk-mq: fix race between updating nr_hw_queues and switching io sched
nvme-pci: remove .init_request callback
block/blk-core.c | 9 ++++++
block/blk-mq.c | 74 ++++++++++++++++++++++++++++++++++++++++++------
block/elevator.c | 2 ++
drivers/nvme/host/core.c | 4 +--
drivers/nvme/host/pci.c | 21 +++-----------
include/linux/blk-mq.h | 7 ++++-
include/linux/blkdev.h | 2 ++
7 files changed, 91 insertions(+), 28 deletions(-)
--
2.9.5
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