linux-kernel - [PATCH bpf-next v9 17/34] bpf: refine memcg-based memory accounting for xskmap maps

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Message-ID: <20201201215900.3569844-18-guro@fb.com>
Date:   Tue, 1 Dec 2020 13:58:43 -0800
From:   Roman Gushchin <guro@...com>
To:     <bpf@...r.kernel.org>
CC:     <ast@...nel.org>, <daniel@...earbox.net>, <netdev@...r.kernel.org>,
        <andrii@...nel.org>, <akpm@...ux-foundation.org>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <kernel-team@...com>
Subject: [PATCH bpf-next v9 17/34] bpf: refine memcg-based memory accounting for xskmap maps

Extend xskmap memory accounting to include the memory taken by
the xsk_map_node structure.

Signed-off-by: Roman Gushchin <guro@...com>
---
 net/xdp/xskmap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/xdp/xskmap.c b/net/xdp/xskmap.c
index 66231ba6c348..9fff1e6dc9cd 100644
--- a/net/xdp/xskmap.c
+++ b/net/xdp/xskmap.c
@@ -16,7 +16,8 @@ static struct xsk_map_node *xsk_map_node_alloc(struct xsk_map *map,
 {
 	struct xsk_map_node *node;
 
-	node = kzalloc(sizeof(*node), GFP_ATOMIC | __GFP_NOWARN);
+	node = bpf_map_kzalloc(&map->map, sizeof(*node),
+			       GFP_ATOMIC | __GFP_NOWARN);
 	if (!node)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.26.2