[PATCH 6.1 294/508] io_uring: account drain memory to cgroup

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Pavel Begunkov <asml.silence@gmail.com>

commit f979c20547e72568e3c793bc92c7522bc3166246 upstream.

Account drain allocations against memcg. It's not a big problem as each
such allocation is paired with a request, which is accounted, but it's
nicer to follow the limits more closely.

Cc: stable@vger.kernel.org # 6.1
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/f8dfdbd755c41fd9c75d12b858af07dfba5bbb68.1746788718.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 io_uring/io_uring.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1654,7 +1654,7 @@ queue:
 	spin_unlock(&ctx->completion_lock);
 
 	io_prep_async_link(req);
-	de = kmalloc(sizeof(*de), GFP_KERNEL);
+	de = kmalloc(sizeof(*de), GFP_KERNEL_ACCOUNT);
 	if (!de) {
 		ret = -ENOMEM;
 		io_req_complete_failed(req, ret);