From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Subject: [PATCH 1/1] io_uring: further remove sqpoll limits on opcodes
Date: Fri, 14 May 2021 12:05:46 +0100 [thread overview]
Message-ID: <909b52d70c45636d8d7897582474ea5aab5eed34.1620990306.git.asml.silence@gmail.com> (raw)
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>
---
fs/io_uring.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 8f718d26f01c..981c0f86e054 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4037,7 +4037,7 @@ 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);
@@ -4152,7 +4152,7 @@ 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;
@@ -5829,8 +5829,6 @@ static int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags)
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)
--
2.31.1
next reply other threads:[~2021-05-14 11:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-14 11:05 Pavel Begunkov [this message]
2021-05-14 14:52 ` [PATCH 1/1] io_uring: further remove sqpoll limits on opcodes Jens Axboe
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