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ublk: add helper to check if device supports user copy

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This will be used by ublk zoned storage support.

Signed-off-by: Andreas Hindborg <a.hindborg@samsung.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230804114610.179530-2-nmi@metaspace.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Andreas Hindborg 2023-08-04 13:46:08 +02:00 committed by Jens Axboe
parent 68392b0020
commit 9d4ed6d462
1 changed files with 6 additions and 1 deletions
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7
drivers/block/ublk_drv.c
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@ -185,6 +185,11 @@ struct ublk_params_header {
__u32 types;
};
static inline bool ublk_dev_is_user_copy(const struct ublk_device *ub)
{
return ub->dev_info.flags & UBLK_F_USER_COPY;
}
static inline void __ublk_complete_rq(struct request *req);
static void ublk_complete_rq(struct kref *ref);
@ -2037,7 +2042,7 @@ static int ublk_ctrl_add_dev(struct io_uring_cmd *cmd)
UBLK_F_URING_CMD_COMP_IN_TASK;
/* GET_DATA isn't needed any more with USER_COPY */
if (ub->dev_info.flags & UBLK_F_USER_COPY)
if (ublk_dev_is_user_copy(ub))
ub->dev_info.flags &= ~UBLK_F_NEED_GET_DATA;
/* We are not ready to support zero copy */