diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2020-01-18 20:22:41 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-20 17:04:07 -0700 |
| commit | 6b47ee6ecab142f938a40bf3b297abac74218ee2 (patch) | |
| tree | 5e64b3964c2651b7e52868409b93870fae8894f9 /include/uapi | |
| parent | 87987898a1dbc69b1138f7c10eb9abd655c03396 (diff) | |
io_uring: optimise sqe-to-req flags translation
For each IOSQE_* flag there is a corresponding REQ_F_* flag. And there
is a repetitive pattern of their translation:
e.g. if (sqe->flags & SQE_FLAG*) req->flags |= REQ_F_FLAG*
Use same numeric values/bits for them and copy instead of manual
handling.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/io_uring.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h index 955fd477e530..57d05cc5e271 100644 --- a/include/uapi/linux/io_uring.h +++ b/include/uapi/linux/io_uring.h @@ -45,14 +45,27 @@ struct io_uring_sqe { }; }; +enum { + IOSQE_FIXED_FILE_BIT, + IOSQE_IO_DRAIN_BIT, + IOSQE_IO_LINK_BIT, + IOSQE_IO_HARDLINK_BIT, + IOSQE_ASYNC_BIT, +}; + /* * sqe->flags */ -#define IOSQE_FIXED_FILE (1U << 0) /* use fixed fileset */ -#define IOSQE_IO_DRAIN (1U << 1) /* issue after inflight IO */ -#define IOSQE_IO_LINK (1U << 2) /* links next sqe */ -#define IOSQE_IO_HARDLINK (1U << 3) /* like LINK, but stronger */ -#define IOSQE_ASYNC (1U << 4) /* always go async */ +/* use fixed fileset */ +#define IOSQE_FIXED_FILE (1U << IOSQE_FIXED_FILE_BIT) +/* issue after inflight IO */ +#define IOSQE_IO_DRAIN (1U << IOSQE_IO_DRAIN_BIT) +/* links next sqe */ +#define IOSQE_IO_LINK (1U << IOSQE_IO_LINK_BIT) +/* like LINK, but stronger */ +#define IOSQE_IO_HARDLINK (1U << IOSQE_IO_HARDLINK_BIT) +/* always go async */ +#define IOSQE_ASYNC (1U << IOSQE_ASYNC_BIT) /* * io_uring_setup() flags |