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(parent: d74a383) | patch
ublk: don't dereference ublk_queue in ublk_ch_uring_cmd_local()
authorCaleb Sander Mateos <csander@purestorage.com>
Thu, 18 Sep 2025 01:49:41 +0000 (19:49 -0600)
committerJens Axboe <axboe@kernel.dk>
Sat, 20 Sep 2025 12:36:27 +0000 (06:36 -0600)
commit5125535f90564117506d926d0de92c4c2622b720
treec269252f9530eba99085799142e898585e69b141tree | snapshot
parentd74a383ec70de33ae6577af889556747d6693269commit | diff
ublk: don't dereference ublk_queue in ublk_ch_uring_cmd_local()

For ublk servers with many ublk queues, accessing the ublk_queue to
handle a ublk command is a frequent cache miss. Get the queue depth from
the ublk_device instead, which is accessed just before.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/ublk_drv.c diff | blob | blame | history
A mirror of Linus' kernel repository