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-rw-r--r--include/linux/bpf.h3
-rw-r--r--kernel/bpf/syscall.c7
2 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 1bcae82c6cb1..29b5a1ae22cb 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -19,7 +19,8 @@ struct bpf_map;
struct bpf_map_ops {
/* funcs callable from userspace (via syscall) */
struct bpf_map *(*map_alloc)(union bpf_attr *attr);
- void (*map_free)(struct bpf_map *);
+ void (*map_release)(struct bpf_map *map, struct file *map_file);
+ void (*map_free)(struct bpf_map *map);
int (*map_get_next_key)(struct bpf_map *map, void *key, void *next_key);
/* funcs callable from userspace and from eBPF programs */
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 46ecce4b79ed..fc3adcd064b1 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -124,7 +124,12 @@ void bpf_map_put_with_uref(struct bpf_map *map)
static int bpf_map_release(struct inode *inode, struct file *filp)
{
- bpf_map_put_with_uref(filp->private_data);
+ struct bpf_map *map = filp->private_data;
+
+ if (map->ops->map_release)
+ map->ops->map_release(map, filp);
+
+ bpf_map_put_with_uref(map);
return 0;
}