aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRoman Gushchin <guro@fb.com>2020-12-01 13:58:57 -0800
committerAlexei Starovoitov <ast@kernel.org>2020-12-02 18:32:47 -0800
commitab31be378a63a8bc1868c9890d28b0206f81396e (patch)
tree8ddac7340bdd745a18ef24336d79ad0f1fbb22df
parent819a4f323579b56cd942f14718edd1f308adbbe2 (diff)
downloadlinux-stericsson-ab31be378a63a8bc1868c9890d28b0206f81396e.tar.gz
bpf: Eliminate rlimit-based memory accounting for bpf local storage maps
Do not use rlimit-based memory accounting for bpf local storage maps. It has been replaced with the memcg-based memory accounting. 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/20201201215900.3569844-32-guro@fb.com
-rw-r--r--kernel/bpf/bpf_local_storage.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/kernel/bpf/bpf_local_storage.c b/kernel/bpf/bpf_local_storage.c
index 023a3eaa4d74..dd5aedee99e7 100644
--- a/kernel/bpf/bpf_local_storage.c
+++ b/kernel/bpf/bpf_local_storage.c
@@ -545,8 +545,6 @@ struct bpf_local_storage_map *bpf_local_storage_map_alloc(union bpf_attr *attr)
struct bpf_local_storage_map *smap;
unsigned int i;
u32 nbuckets;
- u64 cost;
- int ret;
smap = kzalloc(sizeof(*smap), GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
if (!smap)
@@ -557,18 +555,10 @@ struct bpf_local_storage_map *bpf_local_storage_map_alloc(union bpf_attr *attr)
/* Use at least 2 buckets, select_bucket() is undefined behavior with 1 bucket */
nbuckets = max_t(u32, 2, nbuckets);
smap->bucket_log = ilog2(nbuckets);
- cost = sizeof(*smap->buckets) * nbuckets + sizeof(*smap);
-
- ret = bpf_map_charge_init(&smap->map.memory, cost);
- if (ret < 0) {
- kfree(smap);
- return ERR_PTR(ret);
- }
smap->buckets = kvcalloc(sizeof(*smap->buckets), nbuckets,
GFP_USER | __GFP_NOWARN | __GFP_ACCOUNT);
if (!smap->buckets) {
- bpf_map_charge_finish(&smap->map.memory);
kfree(smap);
return ERR_PTR(-ENOMEM);
}