* [PATCH] io_uring: put provided buffer meta data under memcg accounting
@ 2021-09-24 13:42 Jens Axboe
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From: Jens Axboe @ 2021-09-24 13:42 UTC (permalink / raw)
To: io-uring
For each provided buffer, we allocate a struct io_buffer to hold the
data associated with it. As a large number of buffers can be provided,
account that data with memcg.
Fixes: ddf0322db79c ("io_uring: add IORING_OP_PROVIDE_BUFFERS")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 056418f67ef6..67a6f5666965 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4351,7 +4351,7 @@ static int io_add_buffers(struct io_provide_buf *pbuf, struct io_buffer **head)
int i, bid = pbuf->bid;
for (i = 0; i < pbuf->nbufs; i++) {
- buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+ buf = kmalloc(sizeof(*buf), GFP_KERNEL_ACCOUNT);
if (!buf)
break;
--
Jens Axboe
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