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-rw-r--r--mm/memcontrol.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 73afff8062f9..49f40730e711 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -88,6 +88,9 @@ static bool cgroup_memory_nosocket __ro_after_init;
/* Kernel memory accounting disabled? */
static bool cgroup_memory_nokmem __ro_after_init;
+/* BPF memory accounting disabled? */
+static bool cgroup_memory_nobpf __ro_after_init;
+
#ifdef CONFIG_CGROUP_WRITEBACK
static DECLARE_WAIT_QUEUE_HEAD(memcg_cgwb_frn_waitq);
#endif
@@ -347,6 +350,9 @@ static void memcg_reparent_objcgs(struct mem_cgroup *memcg,
*/
DEFINE_STATIC_KEY_FALSE(memcg_kmem_enabled_key);
EXPORT_SYMBOL(memcg_kmem_enabled_key);
+
+DEFINE_STATIC_KEY_FALSE(memcg_bpf_enabled_key);
+EXPORT_SYMBOL(memcg_bpf_enabled_key);
#endif
/**
@@ -5357,6 +5363,11 @@ mem_cgroup_css_alloc(struct cgroup_subsys_state *parent_css)
if (cgroup_subsys_on_dfl(memory_cgrp_subsys) && !cgroup_memory_nosocket)
static_branch_inc(&memcg_sockets_enabled_key);
+#if defined(CONFIG_MEMCG_KMEM)
+ if (!cgroup_memory_nobpf)
+ static_branch_inc(&memcg_bpf_enabled_key);
+#endif
+
return &memcg->css;
}
@@ -5441,6 +5452,11 @@ static void mem_cgroup_css_free(struct cgroup_subsys_state *css)
if (!cgroup_subsys_on_dfl(memory_cgrp_subsys) && memcg->tcpmem_active)
static_branch_dec(&memcg_sockets_enabled_key);
+#if defined(CONFIG_MEMCG_KMEM)
+ if (!cgroup_memory_nobpf)
+ static_branch_dec(&memcg_bpf_enabled_key);
+#endif
+
vmpressure_cleanup(&memcg->vmpressure);
cancel_work_sync(&memcg->high_work);
mem_cgroup_remove_from_trees(memcg);
@@ -7269,6 +7285,8 @@ static int __init cgroup_memory(char *s)
cgroup_memory_nosocket = true;
if (!strcmp(token, "nokmem"))
cgroup_memory_nokmem = true;
+ if (!strcmp(token, "nobpf"))
+ cgroup_memory_nobpf = true;
}
return 1;
}