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(parent: 2fde0e4) | patch
NVMe: reap completion entries when deleting queue
authorKeith Busch <keith.busch@intel.com>
Fri, 20 Nov 2015 15:38:13 +0000 (08:38 -0700)
committerJens Axboe <axboe@fb.com>
Fri, 20 Nov 2015 15:38:13 +0000 (08:38 -0700)
commit604e8c8da8854351496215d269c3fa93859e3fee
tree6d3860193ac4eba815623aebaf342161542d4e62tree | snapshot
parent2fde0e482db2b43bb4ed0e9aebfbe78ebcbbf5a6commit | diff
NVMe: reap completion entries when deleting queue

Make sure that there are no unprocesssed entries on a completion
queue before deleting it, and check for validity of the CQ
door bell before writing completions to it.

This fixes problems with doing a sysfs reset of the device while
it's handling IO.

Tested-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
drivers/nvme/host/pci.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git