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authorRoman Gushchin <guro@fb.com>2020-12-01 13:58:58 -0800
committerAlexei Starovoitov <ast@kernel.org>2020-12-02 18:32:47 -0800
commit80ee81e0403c48f4eb342f7c8d40477c89b8836a (patch)
tree12e9a54ccc6c345b03142ac0ddc80fcf7607ad14 /include/linux/bpf.h
parentab31be378a63a8bc1868c9890d28b0206f81396e (diff)
downloadlinux-stericsson-80ee81e0403c48f4eb342f7c8d40477c89b8836a.tar.gz
bpf: Eliminate rlimit-based memory accounting infra for bpf maps
Remove rlimit-based accounting infrastructure code, which is not used anymore. To provide a backward compatibility, use an approximation of the bpf map memory footprint as a "memlock" value, available to a user via map info. The approximation is based on the maximal number of elements and key and value sizes. Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20201201215900.3569844-33-guro@fb.com
Diffstat (limited to 'include/linux/bpf.h')
-rw-r--r--include/linux/bpf.h12
1 files changed, 0 insertions, 12 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index e1f2c95c15ec..61331a148cde 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -138,11 +138,6 @@ struct bpf_map_ops {
const struct bpf_iter_seq_info *iter_seq_info;
};
-struct bpf_map_memory {
- u32 pages;
- struct user_struct *user;
-};
-
struct bpf_map {
/* The first two cachelines with read-mostly members of which some
* are also accessed in fast-path (e.g. ops, max_entries).
@@ -163,7 +158,6 @@ struct bpf_map {
u32 btf_key_type_id;
u32 btf_value_type_id;
struct btf *btf;
- struct bpf_map_memory memory;
#ifdef CONFIG_MEMCG_KMEM
struct mem_cgroup *memcg;
#endif
@@ -1224,12 +1218,6 @@ void bpf_map_inc_with_uref(struct bpf_map *map);
struct bpf_map * __must_check bpf_map_inc_not_zero(struct bpf_map *map);
void bpf_map_put_with_uref(struct bpf_map *map);
void bpf_map_put(struct bpf_map *map);
-int bpf_map_charge_memlock(struct bpf_map *map, u32 pages);
-void bpf_map_uncharge_memlock(struct bpf_map *map, u32 pages);
-int bpf_map_charge_init(struct bpf_map_memory *mem, u64 size);
-void bpf_map_charge_finish(struct bpf_map_memory *mem);
-void bpf_map_charge_move(struct bpf_map_memory *dst,
- struct bpf_map_memory *src);
void *bpf_map_area_alloc(u64 size, int numa_node);
void *bpf_map_area_mmapable_alloc(u64 size, int numa_node);
void bpf_map_area_free(void *base);