REQ_PREFLUSH is turned into REQ_OP_FLUSH by the flush state machine
and thus never seen by a blk-mq based driver.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/block/ublk_drv.c | 3 ---
include/uapi/linux/ublk_cmd.h | 1 -
2 files changed, 4 deletions(-)
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index b90481b295a74..07913b5bccd90 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -392,9 +392,6 @@ static inline unsigned int ublk_req_build_flags(struct request *req)
if (req->cmd_flags & REQ_FUA)
flags |= UBLK_IO_F_FUA;
- if (req->cmd_flags & REQ_PREFLUSH)
- flags |= UBLK_IO_F_PREFLUSH;
-
if (req->cmd_flags & REQ_NOUNMAP)
flags |= UBLK_IO_F_NOUNMAP;
diff --git a/include/uapi/linux/ublk_cmd.h b/include/uapi/linux/ublk_cmd.h
index d6879eea2fde0..917580b341984 100644
--- a/include/uapi/linux/ublk_cmd.h
+++ b/include/uapi/linux/ublk_cmd.h
@@ -107,7 +107,6 @@ struct ublksrv_ctrl_dev_info {
#define UBLK_IO_F_FAILFAST_DRIVER (1U << 10)
#define UBLK_IO_F_META (1U << 11)
#define UBLK_IO_F_FUA (1U << 13)
-#define UBLK_IO_F_PREFLUSH (1U << 14)
#define UBLK_IO_F_NOUNMAP (1U << 15)
#define UBLK_IO_F_SWAP (1U << 16)
--
2.30.2
