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io_uring: account drain memory to cgroup

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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>
This commit is contained in:
Pavel Begunkov
2025-05-09 12:12:47 +01:00
committed by Greg Kroah-Hartman
parent abf80985f4
commit a8b5ef3554
1 changed files with 1 additions and 1 deletions
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io_uring/io_uring.c
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@@ -1808,7 +1808,7 @@ 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_defer_failed(req, ret);