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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20210319052859.3220-1-dmtrmonakhov@yandex-team.ru> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/03/2021 05:28, Dmitry Monakhov wrote: > Otherwise we may endup blocking on pipe or socket. CC: io-uring ml > > Fixes: 6d5d5ac ("io_uring: extend async work merge") > Testcase: https://github.com/dmonakhov/liburing/commit/16d171b6ef9d68e6db66650a83d98c5c721d01f6 > Signed-off-by: Dmitry Monakhov > --- > fs/io_uring.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/fs/io_uring.c b/fs/io_uring.c > index 478df7e..848657c 100644 > --- a/fs/io_uring.c > +++ b/fs/io_uring.c > @@ -2183,6 +2183,9 @@ static int __io_submit_sqe(struct io_ring_ctx *ctx, struct io_kiocb *req, > static struct async_list *io_async_list_from_req(struct io_ring_ctx *ctx, > struct io_kiocb *req) > { > + if (!(req->flags & REQ_F_ISREG)) > + return NULL; > + > switch (req->submit.opcode) { > case IORING_OP_READV: > case IORING_OP_READ_FIXED: > -- Pavel Begunkov