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(parent: 9e0c7ef) | patch
ublk: remove check IO_URING_F_SQE128 in ublk_ch_uring_cmd
authorMing Lei <ming.lei@redhat.com>
Mon, 20 Feb 2023 04:14:13 +0000 (12:14 +0800)
committerJens Axboe <axboe@kernel.dk>
Tue, 21 Feb 2023 16:27:23 +0000 (09:27 -0700)
commit9c7c4bc986932218fd0df9d2a100509772028fb1
tree1fffdb2ef818c92118fd708200de3c3f64436da6tree | snapshot
parent9e0c7efa5ea231d85c0d41693a5115b3b971717ccommit | diff
ublk: remove check IO_URING_F_SQE128 in ublk_ch_uring_cmd

sizeof(struct ublksrv_io_cmd) is 16bytes, which can be held in 64byte SQE,
so not necessary to check IO_URING_F_SQE128.

With this change, we get chance to save half SQ ring memory.

Fixed: 71f28f3136af ("ublk_drv: add io_uring based userspace block driver")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230220041413.1524335-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/ublk_drv.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)