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

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> On Nov 12, 2020, at 2:15 PM, Roman Gushchin <guro@xxxxxx> 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 <guro@xxxxxx>

Acked-by: Song Liu <songliubraving@xxxxxx>

> ---
> 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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