diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-06-15 22:47:12 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-15 23:42:57 -0700 |
| commit | 61d1b6a42fec61c5065f54cc62cef02b483c69fb (patch) | |
| tree | eb4b02ef08e8f73fd394fadb0b5e15008394c142 /include | |
| parent | b478af0cd7957faca83779fe6832abae163f7159 (diff) | |
bpf, maps: add release callback
Add a release callback for maps that is invoked when the last
reference to its struct file is gone and the struct file about
to be released by vfs. The handler will be used by fd array maps.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 3 |
1 files changed, 2 insertions, 1 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 */ |