From mboxrd@z Thu Jan 1 00:00:00 1970 From: yi.zhang@redhat.com (Yi Zhang) Date: Tue, 19 Dec 2017 10:30:16 -0500 (EST) Subject: [PATCH V2 0/6] blk-mq: fix race related with device deletion/reset/switching sched In-Reply-To: <20171214023103.18272-1-ming.lei@redhat.com> References: <20171214023103.18272-1-ming.lei@redhat.com> Message-ID: <1119473730.1189848.1513697416782.JavaMail.zimbra@redhat.com> Thanks ming. Tested-by: Yi Zhang Best Regards, Yi Zhang ----- Original Message ----- From: "Ming Lei" To: linux-nvme at lists.infradead.org, "Christoph Hellwig" , "Jens Axboe" , linux-block at vger.kernel.org Cc: "Yi Zhang" , "Sagi Grimberg" , "Ming Lei" , "Keith Busch" , "Johannes Thumshirn" , "Bart Van Assche" 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 _______________________________________________ Linux-nvme mailing list Linux-nvme at lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme