951cf368bcb11d6f817709660cf5cd914072c36f - SHIFTPHONES/kernel/common

commit	951cf368bcb11d6f817709660cf5cd914072c36f	[log] [tgz]
author	Yonghong Song <yhs@fb.com>	Mon Jul 20 09:34:03 2020 -0700
committer	Alexei Starovoitov <ast@kernel.org>	Tue Jul 21 13:26:26 2020 -0700
tree	521419b293f6fd3b2e1d201bbb4ca49f9e9e5ce5
parent	fce557bcef119a1bc5ab3cb02678cf454bcaf424 [diff]

bpf: net: Use precomputed btf_id for bpf iterators

One additional field btf_id is added to struct
bpf_ctx_arg_aux to store the precomputed btf_ids.
The btf_id is computed at build time with
BTF_ID_LIST or BTF_ID_LIST_GLOBAL macro definitions.
All existing bpf iterators are changed to used
pre-compute btf_ids.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200720163403.1393551-1-yhs@fb.com

include/linux/bpf.h[diff]
kernel/bpf/btf.c[diff]
kernel/bpf/map_iter.c[diff]
kernel/bpf/task_iter.c[diff]
net/ipv4/tcp_ipv4.c[diff]
net/ipv4/udp.c[diff]
net/ipv6/route.c[diff]
net/netlink/af_netlink.c[diff]

8 files changed

tree: 521419b293f6fd3b2e1d201bbb4ca49f9e9e5ce5