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WSL2-Linux-Kernel
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io_uring: remove nonblock arg from io_{rw}_prep() 

All io_*_prep() functions including io_{read,write}_prep() are called
only during submission where @force_nonblock is always true. Don't keep
propagating it and instead remove the @force_nonblock argument
from prep() altogether.

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 22:57:54 +03:00 коммит произвёл Jens Axboe
Родитель a88fc40021
Коммит 73debe68b3
1 изменённых файлов: 10 добавлений и 13 удалений
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23
fs/io_uring.c
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@ -3122,14 +3122,13 @@ static int io_setup_async_rw(struct io_kiocb *req, const struct iovec *iovec,
return 0;
}
static inline int io_rw_prep_async(struct io_kiocb *req, int rw,
bool force_nonblock)
static inline int io_rw_prep_async(struct io_kiocb *req, int rw)
{
struct io_async_rw *iorw = req->async_data;
struct iovec *iov = iorw->fast_iov;
ssize_t ret;
ret = __io_import_iovec(rw, req, &iov, &iorw->iter, !force_nonblock);
ret = __io_import_iovec(rw, req, &iov, &iorw->iter, false);
if (unlikely(ret < 0))
return ret;
@ -3140,8 +3139,7 @@ static inline int io_rw_prep_async(struct io_kiocb *req, int rw,
return 0;
}
static int io_read_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
bool force_nonblock)
static int io_read_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
ssize_t ret;
@ -3155,7 +3153,7 @@ static int io_read_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
/* either don't need iovec imported or already have it */
if (!req->async_data)
return 0;
return io_rw_prep_async(req, READ, force_nonblock);
return io_rw_prep_async(req, READ);
}
/*
@ -3367,8 +3365,7 @@ out_free:
return ret;
}
static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
bool force_nonblock)
static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
ssize_t ret;
@ -3382,7 +3379,7 @@ static int io_write_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe,
/* either don't need iovec imported or already have it */
if (!req->async_data)
return 0;
return io_rw_prep_async(req, WRITE, force_nonblock);
return io_rw_prep_async(req, WRITE);
}
static int io_write(struct io_kiocb *req, bool force_nonblock,
@ -5615,12 +5612,12 @@ static int io_req_defer_prep(struct io_kiocb *req,
case IORING_OP_READV:
case IORING_OP_READ_FIXED:
case IORING_OP_READ:
ret = io_read_prep(req, sqe, true);
ret = io_read_prep(req, sqe);
break;
case IORING_OP_WRITEV:
case IORING_OP_WRITE_FIXED:
case IORING_OP_WRITE:
ret = io_write_prep(req, sqe, true);
ret = io_write_prep(req, sqe);
break;
case IORING_OP_POLL_ADD:
ret = io_poll_add_prep(req, sqe);
@ -5851,7 +5848,7 @@ static int io_issue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,
case IORING_OP_READ_FIXED:
case IORING_OP_READ:
if (sqe) {
ret = io_read_prep(req, sqe, force_nonblock);
ret = io_read_prep(req, sqe);
if (ret < 0)
break;
}
@ -5861,7 +5858,7 @@ static int io_issue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,
case IORING_OP_WRITE_FIXED:
case IORING_OP_WRITE:
if (sqe) {
ret = io_write_prep(req, sqe, force_nonblock);
ret = io_write_prep(req, sqe);
if (ret < 0)
break;
}