]> www.infradead.org Git - users/jedix/linux-maple.git/commit
NVMe: Memory barrier before queue_count is incremented
authorJon Derrick <jonathan.derrick@intel.com>
Wed, 27 May 2015 18:26:23 +0000 (12:26 -0600)
committerChuck Anderson <chuck.anderson@oracle.com>
Wed, 6 Jul 2016 23:31:47 +0000 (16:31 -0700)
commit3ff40461886bc7ecb04307c0ec621f67a2ca8b48
tree62eef618ce0d0f1b5337209fc3a066fa249696ff
parent99bfcebb87968858448655704eed89aaa90b3c53
NVMe: Memory barrier before queue_count is incremented

Protects against reordering and/or preempting which would allow the
kthread to access the queue descriptor before it is set up

Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
(cherry picked from commit 36a7e993eedb2c3f11de3b686b351f75e1edbbb5)

Orabug: 22620486
Signed-off-by: Jason Luo <zhangqing.luo@oracle.com>
drivers/block/nvme-core.c