Weiping Zhang 2a5bcfdd41 nvme-pci: align io queue count with allocted nvme_queue in nvme_probe ... Since commit 147b27e4bd ("nvme-pci: allocate device queues storage space at probe"), nvme_alloc_queue does not alloc the nvme queues itself anymore. If the write/poll_queues module parameters are changed at runtime to values larger than the number of allocated queues in nvme_probe, nvme_alloc_queue will access unallocated memory. Add a new nr_allocated_queues member to struct nvme_dev to record how many queues were alloctated in nvme_probe to avoid using more than the allocated queues after a reset following a change to the write/poll_queues module parameters. Also add nr_write_queues and nr_poll_queues members to allow refreshing the number of write and poll queues based on a change to the module parameters when resetting the controller. Fixes: 147b27e4bd ("nvme-pci: allocate device queues storage space at probe") Signed-off-by: Weiping Zhang <zhangweiping@didiglobal.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> [hch: add nvme_max_io_queues, update the commit message] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2020-05-09 16:18:36 -06:00
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core.c	nvme: flush scan work on passthrough commands	2020-05-09 16:18:36 -06:00
fabrics.c	nvme-fabrics: Use scnprintf() for avoiding potential buffer overflow	2020-03-26 04:51:55 +09:00
fabrics.h	nvme: Remove ADMIN_ONLY state	2019-10-14 23:21:44 +09:00
fault_inject.c	nvme: enable to inject errors into admin commands	2019-06-21 11:15:50 +02:00
fc.c	nvme-fc: avoid gcc-10 zero-length-bounds warning	2020-05-09 16:18:36 -06:00
fc.h	nvme-fc: Update header and host for common definitions for LS handling	2020-05-09 16:18:33 -06:00
hwmon.c	nvme: hwmon: switch to use <linux/units.h> helpers	2020-01-31 10:30:40 -08:00
Kconfig	nvme: Don't deter users from enabling hwmon support	2020-03-26 04:45:25 +09:00
lightnvm.c	lightnvm: move metadata mapping to lower level driver	2019-08-06 08:20:10 -06:00
Makefile	nvme: Add hardware monitoring support	2019-11-12 01:57:35 +09:00
multipath.c	nvme-multipath: set bdi capabilities once	2020-05-09 16:18:35 -06:00
nvme.h	nvme: consolidate chunk_sectors settings	2020-05-09 16:18:35 -06:00
pci.c	nvme-pci: align io queue count with allocted nvme_queue in nvme_probe	2020-05-09 16:18:36 -06:00
rdma.c	block-5.7-2020-04-10	2020-04-10 10:06:54 -07:00
tcp.c	nvme-tcp: fix possible crash in recv error flow	2020-04-01 11:07:13 +02:00
trace.c	nvme: trace: parse Get LBA Status command in detail	2019-08-29 12:55:01 -07:00
trace.h	nvme-trace: print result and status in hex format	2019-06-21 11:12:37 +02:00