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authorAndrey Ignatov <rdna@fb.com>2020-06-19 23:11:44 +0200
committerDaniel Borkmann <daniel@iogearbox.net>2020-06-22 22:22:58 +0200
commit2872e9ac33a4440173418147351ed4f93177e763 (patch)
treed6e1d303efc0b0ce2e4cdefeca4403ddecc08a1d /kernel/bpf/ringbuf.c
parentbpf: Support access to bpf map fields (diff)
downloadlinux-2872e9ac33a4440173418147351ed4f93177e763.tar.xz
linux-2872e9ac33a4440173418147351ed4f93177e763.zip
bpf: Set map_btf_{name, id} for all map types
Set map_btf_name and map_btf_id for all map types so that map fields can be accessed by bpf programs. Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/a825f808f22af52b018dbe82f1c7d29dab5fc978.1592600985.git.rdna@fb.com
Diffstat (limited to 'kernel/bpf/ringbuf.c')
-rw-r--r--kernel/bpf/ringbuf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/bpf/ringbuf.c b/kernel/bpf/ringbuf.c
index 180414bb0d3e..dbf37aff4827 100644
--- a/kernel/bpf/ringbuf.c
+++ b/kernel/bpf/ringbuf.c
@@ -294,6 +294,7 @@ static __poll_t ringbuf_map_poll(struct bpf_map *map, struct file *filp,
return 0;
}
+static int ringbuf_map_btf_id;
const struct bpf_map_ops ringbuf_map_ops = {
.map_alloc = ringbuf_map_alloc,
.map_free = ringbuf_map_free,
@@ -303,6 +304,8 @@ const struct bpf_map_ops ringbuf_map_ops = {
.map_update_elem = ringbuf_map_update_elem,
.map_delete_elem = ringbuf_map_delete_elem,
.map_get_next_key = ringbuf_map_get_next_key,
+ .map_btf_name = "bpf_ringbuf_map",
+ .map_btf_id = &ringbuf_map_btf_id,
};
/* Given pointer to ring buffer record metadata and struct bpf_ringbuf itself,