[RFCv2 08/16] bpf: export bpf_prog_clone functions
From: Jakub Kicinski <hidden>
Date: 2016-08-26 18:15:53
Subsystem:
bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Export bpf_prog_clone_create() and bpf_prog_clone_free(). Signed-off-by: Jakub Kicinski <redacted> --- include/linux/bpf.h | 4 ++++ kernel/bpf/core.c | 8 +++++--- 2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 11134238417d..39f32c5ad445 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h@@ -319,4 +319,8 @@ extern const struct bpf_func_proto bpf_get_stackid_proto; void bpf_user_rnd_init_once(void); u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); +struct bpf_prog *bpf_prog_clone_create(struct bpf_prog *fp_other, + gfp_t gfp_extra_flags); +void bpf_prog_clone_free(struct bpf_prog *fp); + #endif /* _LINUX_BPF_H */
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 03fd23d4d587..c6e7ed9b6a24 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c@@ -351,8 +351,8 @@ out: return to - to_buff; } -static struct bpf_prog *bpf_prog_clone_create(struct bpf_prog *fp_other, - gfp_t gfp_extra_flags) +struct bpf_prog *bpf_prog_clone_create(struct bpf_prog *fp_other, + gfp_t gfp_extra_flags) { gfp_t gfp_flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO | gfp_extra_flags;
@@ -371,8 +371,9 @@ static struct bpf_prog *bpf_prog_clone_create(struct bpf_prog *fp_other, return fp; } +EXPORT_SYMBOL_GPL(bpf_prog_clone_create); -static void bpf_prog_clone_free(struct bpf_prog *fp) +void bpf_prog_clone_free(struct bpf_prog *fp) { /* aux was stolen by the other clone, so we cannot free * it from this path! It will be freed eventually by the
@@ -384,6 +385,7 @@ static void bpf_prog_clone_free(struct bpf_prog *fp) fp->aux = NULL; __bpf_prog_free(fp); } +EXPORT_SYMBOL_GPL(bpf_prog_clone_free); void bpf_jit_prog_release_other(struct bpf_prog *fp, struct bpf_prog *fp_other) {
--
1.9.1