From 3e433e671e17fe32b6fbc4fe0d836636efc03e80 Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Mon, 13 Sep 2021 09:31:43 -0600
Subject: [PATCH] io_uring: place fixed tables under memcg limits
Git-commit: 0bea96f59ba40e63c0ae93ad6a02417b95f22f4d
Patch-mainline: v5.15-rc1
References: stable-5.14.6

commit 0bea96f59ba40e63c0ae93ad6a02417b95f22f4d upstream.

Fixed tables may be large enough, place all of them together with
allocated tags under memcg limits.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b3ac9f5da9821bb59837b5fe25e8ef4be982218c.1629451684.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 fs/io_uring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 14bebc62db2d..05004042a7b5 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7126,14 +7126,14 @@ static void **io_alloc_page_table(size_t size)
 	size_t init_size = size;
 	void **table;
 
-	table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL);
+	table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL_ACCOUNT);
 	if (!table)
 		return NULL;
 
 	for (i = 0; i < nr_tables; i++) {
 		unsigned int this_size = min_t(size_t, size, PAGE_SIZE);
 
-		table[i] = kzalloc(this_size, GFP_KERNEL);
+		table[i] = kzalloc(this_size, GFP_KERNEL_ACCOUNT);
 		if (!table[i]) {
 			io_free_page_table(table, init_size);
 			return NULL;
-- 
2.26.2