[PATCH v11 1/3] ublk: add helper to check if device supports user copy
From: Andreas Hindborg (Samsung) <hidden>
Date: 2023-08-04 11:46:27
Also in:
lkml
Subsystem:
block layer, the rest, ublk userspace block driver · Maintainers:
Jens Axboe, Linus Torvalds, Ming Lei
From: Andreas Hindborg <redacted> This will be used by ublk zoned storage support. Signed-off-by: Andreas Hindborg <redacted> Reviewed-by: Ming Lei <redacted> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Johannes Thumshirn <redacted> --- drivers/block/ublk_drv.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 21d2e71c5514..db3523e281a6 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c@@ -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);
@@ -2038,7 +2043,7 @@ 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 */
--
2.41.0