diff mbox series

[bpf-next,v5,05/34] bpf: memcg-based memory accounting for bpf progs

Message ID 20201112221543.3621014-6-guro@fb.com (mailing list archive)
State Changes Requested
Delegated to: BPF
Headers show
Series bpf: switch to memcg-based memory accounting | expand

Commit Message

Roman Gushchin Nov. 12, 2020, 10:15 p.m. UTC 
Include memory used by bpf programs into the memcg-based accounting.
This includes the memory used by programs itself, auxiliary data,
statistics and bpf line info. A memory cgroup containing the
process which loads the program is getting charged.

Signed-off-by: Roman Gushchin <guro@fb.com>
---
 kernel/bpf/core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Song Liu Nov. 13, 2020, 5:31 p.m. UTC | #1 
> On Nov 12, 2020, at 2:15 PM, Roman Gushchin <guro@fb.com> wrote:
> 
> Include memory used by bpf programs into the memcg-based accounting.
> This includes the memory used by programs itself, auxiliary data,
> statistics and bpf line info. A memory cgroup containing the
> process which loads the program is getting charged.
> 
> Signed-off-by: Roman Gushchin <guro@fb.com>

Acked-by: Song Liu <songliubraving@fb.com>
diff mbox series

Patch

diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 9268d77898b7..8346ebcbde99 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -77,7 +77,7 @@  void *bpf_internal_load_pointer_neg_helper(const struct sk_buff *skb, int k, uns
 
 struct bpf_prog *bpf_prog_alloc_no_stats(unsigned int size, gfp_t gfp_extra_flags)
 {
-	gfp_t gfp_flags = GFP_KERNEL | __GFP_ZERO | gfp_extra_flags;
+	gfp_t gfp_flags = GFP_KERNEL_ACCOUNT | __GFP_ZERO | gfp_extra_flags;
 	struct bpf_prog_aux *aux;
 	struct bpf_prog *fp;
 
@@ -86,7 +86,7 @@  struct bpf_prog *bpf_prog_alloc_no_stats(unsigned int size, gfp_t gfp_extra_flag
 	if (fp == NULL)
 		return NULL;
 
-	aux = kzalloc(sizeof(*aux), GFP_KERNEL | gfp_extra_flags);
+	aux = kzalloc(sizeof(*aux), GFP_KERNEL_ACCOUNT | gfp_extra_flags);
 	if (aux == NULL) {
 		vfree(fp);
 		return NULL;
@@ -106,7 +106,7 @@  struct bpf_prog *bpf_prog_alloc_no_stats(unsigned int size, gfp_t gfp_extra_flag
 
 struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags)
 {
-	gfp_t gfp_flags = GFP_KERNEL | __GFP_ZERO | gfp_extra_flags;
+	gfp_t gfp_flags = GFP_KERNEL_ACCOUNT | __GFP_ZERO | gfp_extra_flags;
 	struct bpf_prog *prog;
 	int cpu;
 
@@ -138,7 +138,7 @@  int bpf_prog_alloc_jited_linfo(struct bpf_prog *prog)
 
 	prog->aux->jited_linfo = kcalloc(prog->aux->nr_linfo,
 					 sizeof(*prog->aux->jited_linfo),
-					 GFP_KERNEL | __GFP_NOWARN);
+					 GFP_KERNEL_ACCOUNT | __GFP_NOWARN);
 	if (!prog->aux->jited_linfo)
 		return -ENOMEM;
 
@@ -219,7 +219,7 @@  void bpf_prog_free_linfo(struct bpf_prog *prog)
 struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
 				  gfp_t gfp_extra_flags)
 {
-	gfp_t gfp_flags = GFP_KERNEL | __GFP_ZERO | gfp_extra_flags;
+	gfp_t gfp_flags = GFP_KERNEL_ACCOUNT | __GFP_ZERO | gfp_extra_flags;
 	struct bpf_prog *fp;
 	u32 pages, delta;
 	int ret;