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authorRoman Gushchin <guro@fb.com>2018-08-02 14:27:19 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-08-03 00:47:32 +0200
commitaa0ad5b0391e268bdecf6cda31268388844f8afd (patch)
treea763afafb670908f733cf1473da4e54edf360763 /kernel/bpf
parentde9cbbaadba5adf88a19e46df61f7054000838f6 (diff)
downloadlinux-aa0ad5b0391e268bdecf6cda31268388844f8afd.tar.bz2
bpf: pass a pointer to a cgroup storage using pcpu variable
This commit introduces the bpf_cgroup_storage_set() helper, which will be used to pass a pointer to a cgroup storage to the bpf helper. Signed-off-by: Roman Gushchin <guro@fb.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/bpf')
-rw-r--r--kernel/bpf/local_storage.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index f23d3fdeba23..fc4e37f68f2a 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -7,6 +7,8 @@
#include <linux/rbtree.h>
#include <linux/slab.h>
+DEFINE_PER_CPU(void*, bpf_cgroup_storage);
+
#ifdef CONFIG_CGROUP_BPF
#define LOCAL_STORAGE_CREATE_FLAG_MASK \