bpf: enable program stats

[sfrench/cifs-2.6.git] / include / linux / bpf.h

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index de18227b3d95941c800bfbaaffb68b976d2e9b62..a2132e09dc1c422731e9533a2a2efa2f5b0132dd 100644 (file)
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -16,6 +16,7 @@
 #include <linux/rbtree_latch.h>
 #include <linux/numa.h>
 #include <linux/wait.h>
+#include <linux/u64_stats_sync.h>
 
 struct bpf_verifier_env;
 struct perf_event;
@@ -340,6 +341,12 @@ enum bpf_cgroup_storage_type {
 
 #define MAX_BPF_CGROUP_STORAGE_TYPE __BPF_CGROUP_STORAGE_MAX
 
+struct bpf_prog_stats {
+       u64 cnt;
+       u64 nsecs;
+       struct u64_stats_sync syncp;
+};
+
 struct bpf_prog_aux {
        atomic_t refcnt;
        u32 used_map_cnt;
@@ -389,6 +396,7 @@ struct bpf_prog_aux {
         * main prog always has linfo_idx == 0
         */
        u32 linfo_idx;
+       struct bpf_prog_stats __percpu *stats;
        union {
                struct work_struct work;
                struct rcu_head rcu;
@@ -559,6 +567,7 @@ void bpf_map_area_free(void *base);
 void bpf_map_init_from_attr(struct bpf_map *map, union bpf_attr *attr);
 
 extern int sysctl_unprivileged_bpf_disabled;
+extern int sysctl_bpf_stats_enabled;
 
 int bpf_map_new_fd(struct bpf_map *map, int flags);
 int bpf_prog_new_fd(struct bpf_prog *prog);