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authorDaniel Borkmann <daniel@iogearbox.net>2015-03-01 11:31:47 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-03-01 19:05:19 (GMT)
commit24701ecea76b0b93bd9667486934ec310825f558 (patch)
tree7f658077fea363e89643d95fc808236d748b8431 /net
parent96be4325f443dbbfeb37d2a157675ac0736531a1 (diff)
downloadlinux-24701ecea76b0b93bd9667486934ec310825f558.tar.xz
ebpf: move read-only fields to bpf_prog and shrink bpf_prog_aux
is_gpl_compatible and prog_type should be moved directly into bpf_prog as they stay immutable during bpf_prog's lifetime, are core attributes and they can be locked as read-only later on via bpf_prog_select_runtime(). With a bit of rearranging, this also allows us to shrink bpf_prog_aux to exactly 1 cacheline. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/filter.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index 514d408..ff000cb 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -814,7 +814,7 @@ static void bpf_release_orig_filter(struct bpf_prog *fp)
static void __bpf_prog_release(struct bpf_prog *prog)
{
- if (prog->aux->prog_type == BPF_PROG_TYPE_SOCKET_FILTER) {
+ if (prog->type == BPF_PROG_TYPE_SOCKET_FILTER) {
bpf_prog_put(prog);
} else {
bpf_release_orig_filter(prog);
@@ -1105,7 +1105,7 @@ int sk_attach_bpf(u32 ufd, struct sock *sk)
if (IS_ERR(prog))
return PTR_ERR(prog);
- if (prog->aux->prog_type != BPF_PROG_TYPE_SOCKET_FILTER) {
+ if (prog->type != BPF_PROG_TYPE_SOCKET_FILTER) {
bpf_prog_put(prog);
return -EINVAL;
}