Merge branch 'bpf-next'

Daniel Borkmann says:

====================
BPF updates

[ Set applies on top of current net-next but also on top of
  Alexei's latest patches. Please see individual patches for
  more details. ]

Changelog:
 v1->v2:
  - Removed paragraph in 1st commit message
  - Rest stays the same
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 3 deletions

diff --git a/include/linux/filter.h b/include/linux/filter.h
index 8f82ef3f1cdd..4b59edead908 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -289,15 +289,20 @@ struct sock_fprog_kern {
 	struct sock_filter	*filter;
 };
 
+struct bpf_binary_header {
+	unsigned int pages;
+	u8 image[];
+};
+
 struct bpf_work_struct {
 	struct bpf_prog *prog;
 	struct work_struct work;
 };
 
 struct bpf_prog {
-	u32			pages;		/* Number of allocated pages */
-	u32			jited:1,	/* Is our filter JIT'ed? */
-				len:31;		/* Number of filter blocks */
+	u16			pages;		/* Number of allocated pages */
+	bool			jited;		/* Is our filter JIT'ed? */
+	u32			len;		/* Number of filter blocks */
 	struct sock_fprog_kern	*orig_prog;	/* Original BPF program */
 	struct bpf_work_struct	*work;		/* Deferred free work struct */
 	unsigned int		(*bpf_func)(const struct sk_buff *skb,
@@ -358,6 +363,14 @@ struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size,
 				  gfp_t gfp_extra_flags);
 void __bpf_prog_free(struct bpf_prog *fp);
 
+typedef void (*bpf_jit_fill_hole_t)(void *area, unsigned int size);
+
+struct bpf_binary_header *
+bpf_jit_binary_alloc(unsigned int proglen, u8 **image_ptr,
+		     unsigned int alignment,
+		     bpf_jit_fill_hole_t bpf_fill_ill_insns);
+void bpf_jit_binary_free(struct bpf_binary_header *hdr);
+
 static inline void bpf_prog_unlock_free(struct bpf_prog *fp)
 {
 	bpf_prog_unlock_ro(fp);