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io_uring: deduplicate open iopoll check

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Move IORING_SETUP_IOPOLL check into __io_openat_prep(), so both openat
and openat2 reuse it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9a73ce83e4ee60d011180ef177eecef8e87ff2a2.1628471125.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-08-09 13:04:16 +01:00 committed by Jens Axboe
parent 543af3a13d
commit d3fddf6ddd
1 changed files with 4 additions and 7 deletions
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11
fs/io_uring.c
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@ -3789,6 +3789,8 @@ static int __io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
const char __user *fname;
int ret;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
if (unlikely(sqe->ioprio || sqe->buf_index))
return -EINVAL;
if (unlikely(req->flags & REQ_F_FIXED_FILE))
@ -3813,12 +3815,9 @@ static int __io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe
static int io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
u64 flags, mode;
u64 mode = READ_ONCE(sqe->len);
u64 flags = READ_ONCE(sqe->open_flags);
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
mode = READ_ONCE(sqe->len);
flags = READ_ONCE(sqe->open_flags);
req->open.how = build_open_how(flags, mode);
return __io_openat_prep(req, sqe);
}
@ -3829,8 +3828,6 @@ static int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
size_t len;
int ret;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
how = u64_to_user_ptr(READ_ONCE(sqe->addr2));
len = READ_ONCE(sqe->len);
if (len < OPEN_HOW_SIZE_VER0)