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From:   Roman Gushchin <guro@fb.com>
To:     <bpf@vger.kernel.org>
CC:     <ast@kernel.org>, <daniel@iogearbox.net>, <netdev@vger.kernel.org>,
        <andrii@kernel.org>, <akpm@linux-foundation.org>,
        <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
        <kernel-team@fb.com>
Subject: [PATCH bpf-next v8 07/34] bpf: memcg-based memory accounting for bpf maps
Date:   Tue, 24 Nov 2020 19:00:52 -0800
Message-ID: <20201125030119.2864302-8-guro@fb.com>
In-Reply-To: <20201125030119.2864302-1-guro@fb.com>
References: <20201125030119.2864302-1-guro@fb.com>
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This patch enables memcg-based memory accounting for memory allocated
by __bpf_map_area_alloc(), which is used by many types of bpf maps for
large memory allocations.

Following patches in the series will refine the accounting for
some of the map types.

Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
---
 kernel/bpf/syscall.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 4154c616788c..4b514bb5cd70 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -281,7 +281,7 @@ static void *__bpf_map_area_alloc(u64 size, int numa_=
node, bool mmapable)
 	 * __GFP_RETRY_MAYFAIL to avoid such situations.
 	 */
=20
-	const gfp_t gfp =3D __GFP_NOWARN | __GFP_ZERO;
+	const gfp_t gfp =3D __GFP_NOWARN | __GFP_ZERO | __GFP_ACCOUNT;
 	unsigned int flags =3D 0;
 	unsigned long align =3D 1;
 	void *area;
--=20
2.26.2