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io_uring: remove F_NEED_CLEANUP check in *prep()

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REQ_F_NEED_CLEANUP is set only by io_*_prep() and they're guaranteed to
be called only once, so there is no one who may have set the flag
before. Kill REQ_F_NEED_CLEANUP check in these *prep() handlers.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2020-09-30 22:57:35 +03:00 committed by Jens Axboe
parent 5b09e37e27
commit 2d199895d2
1 changed files with 2 additions and 16 deletions
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18
fs/io_uring.c
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@ -3157,7 +3157,7 @@ static int io_read_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
return -EBADF;
/* either don't need iovec imported or already have it */
if (!req->async_data || req->flags & REQ_F_NEED_CLEANUP)
if (!req->async_data)
return 0;
return io_rw_prep_async(req, READ, force_nonblock);
}
@ -3381,7 +3381,7 @@ static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
return -EBADF;
/* either don't need iovec imported or already have it */
if (!req->async_data || req->flags & REQ_F_NEED_CLEANUP)
if (!req->async_data)
return 0;
return io_rw_prep_async(req, WRITE, force_nonblock);
}
@ -3482,8 +3482,6 @@ static int __io_splice_prep(struct io_kiocb *req,
unsigned int valid_flags = SPLICE_F_FD_IN_FIXED | SPLICE_F_ALL;
int ret;
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
@ -3693,8 +3691,6 @@ static int io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
return -EINVAL;
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
mode = READ_ONCE(sqe->len);
flags = READ_ONCE(sqe->open_flags);
req->open.how = build_open_how(flags, mode);
@ -3709,8 +3705,6 @@ static int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL|IORING_SETUP_SQPOLL)))
return -EINVAL;
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
how = u64_to_user_ptr(READ_ONCE(sqe->addr2));
len = READ_ONCE(sqe->len);
if (len < OPEN_HOW_SIZE_VER0)
@ -4218,10 +4212,6 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (!async_msg || !io_op_defs[req->opcode].needs_async_data)
return 0;
/* iovec is already imported */
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
ret = io_sendmsg_copy_hdr(req, async_msg);
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;
@ -4448,10 +4438,6 @@ static int io_recvmsg_prep(struct io_kiocb *req,
if (!async_msg || !io_op_defs[req->opcode].needs_async_data)
return 0;
/* iovec is already imported */
if (req->flags & REQ_F_NEED_CLEANUP)
return 0;
ret = io_recvmsg_copy_hdr(req, async_msg);
if (!ret)
req->flags |= REQ_F_NEED_CLEANUP;