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io_uring: further remove sqpoll limits on opcodes

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There are three types of requests that left disabled for sqpoll, namely
epoll ctx, statx, and resources update. Since SQPOLL task is now closely
mimics a userspace thread, remove the restrictions.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/909b52d70c45636d8d7897582474ea5aab5eed34.1620990306.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-05-14 12:05:46 +01:00 • committed by Jens Axboe
parent 447c19f3b5
commit 2d74d0421e
1 changed files with 2 additions and 4 deletions
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6
fs/io_uring.c
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@ -4035,7 +4035,7 @@ static int io_epoll_ctl_prep(struct io_kiocb *req,
#if defined(CONFIG_EPOLL)
if (sqe->ioprio || sqe->buf_index)
return -EINVAL;
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL | IORING_SETUP_SQPOLL)))
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
req->epoll.epfd = READ_ONCE(sqe->fd);
@ -4150,7 +4150,7 @@ static int io_fadvise(struct io_kiocb *req, unsigned int issue_flags)
static int io_statx_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
{
if (unlikely(req->ctx->flags & (IORING_SETUP_IOPOLL | IORING_SETUP_SQPOLL)))
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
if (sqe->ioprio || sqe->buf_index)
return -EINVAL;
@ -5827,8 +5827,6 @@ done:
static int io_rsrc_update_prep(struct io_kiocb *req,
const struct io_uring_sqe *sqe)
{
if (unlikely(req->ctx->flags & IORING_SETUP_SQPOLL))
return -EINVAL;
if (unlikely(req->flags & (REQ_F_FIXED_FILE | REQ_F_BUFFER_SELECT)))
return -EINVAL;
if (sqe->ioprio || sqe->rw_flags)