lkml.org 
[lkml]   [2020]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 4/5] io_uring: Fix missing save the current thread files
From
Date
On 9/23/20 5:44 AM, Muchun Song wrote:
> We forget to save the current thread files, in this case, we can not
> send SIGINT signal to the kworker because the files is not equal.
>
> Fixes: 54ee77961e79 ("io_uring: Fix NULL pointer dereference in io_sq_wq_submit_work()")
> Signed-off-by: Muchun Song <songmuchun@bytedance.com>
> ---
> fs/io_uring.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/fs/io_uring.c b/fs/io_uring.c
> index 12e68ea00a543..c65f78f395655 100644
> --- a/fs/io_uring.c
> +++ b/fs/io_uring.c
> @@ -2391,6 +2391,8 @@ static bool io_add_to_prev_work(struct async_list *list, struct io_kiocb *req)
> if (ret) {
> struct io_ring_ctx *ctx = req->ctx;
>
> + req->files = current->files;
> +
> spin_lock_irq(&ctx->task_lock);
> list_add(&req->task_list, &ctx->task_list);
> req->work_task = NULL;

This should be folded in with patch 1.

--
Jens Axboe

\
 
 \ /
  Last update: 2020-10-06 22:27    [W:0.056 / U:0.752 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site