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

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

From: Song Liu <hidden>
Date: 2020-11-13 18:05:26
Also in: bpf, linux-mm, lkml

On Nov 12, 2020, at 2:15 PM, Roman Gushchin [off-list ref] wrote:

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>
Acked-by: Song Liu <redacted>
quoted hunk ↗ jump to hunk
---
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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