Thread (17 messages) flat view 17 messages, 2 authors, 2020-11-13
STALE2094d

Revision v5 of 10 in this series.

Revisions (10)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 current
  6. v6 [diff vs current]
  7. v6 [diff vs current]
  8. v7 [diff vs current]
  9. v8 [diff vs current]
  10. v9 [diff vs current]

[PATCH bpf-next v5 07/34] bpf: memcg-based memory accounting for bpf maps

From: Roman Gushchin <hidden>
Date: 2020-11-12 22:26:47
Also in: bpf, linux-mm, lkml
Subsystem: bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds

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 <redacted>
---
 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 2d77fc2496da..fcadf953989f 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -280,7 +280,7 @@ static void *__bpf_map_area_alloc(u64 size, int numa_node, bool mmapable)
 	 * __GFP_RETRY_MAYFAIL to avoid such situations.
 	 */
 
-	const gfp_t gfp = __GFP_NOWARN | __GFP_ZERO;
+	const gfp_t gfp = __GFP_NOWARN | __GFP_ZERO | __GFP_ACCOUNT;
 	unsigned int flags = 0;
 	unsigned long align = 1;
 	void *area;
-- 
2.26.2
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