From: Eric Dumazet <edumazet@google.com>
Date: Fri, 11 Oct 2019 18:11:40 +0000 (-0700)
Subject: bpf: Align struct bpf_prog_stats
X-Git-Tag: for-linus-20191129~13^2~365^2~8
X-Git-Url: https://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff_plain;h=84a081f60db63aaae3665118203506aa09a7f94f

bpf: Align struct bpf_prog_stats

Do not risk spanning these small structures on two cache lines.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191011181140.2898-1-edumazet@google.com
---

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 5b9d22338606..282e28bf41ec 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -363,7 +363,7 @@ struct bpf_prog_stats {
 	u64 cnt;
 	u64 nsecs;
 	struct u64_stats_sync syncp;
-};
+} __aligned(2 * sizeof(u64));
 
 struct bpf_prog_aux {
 	atomic_t refcnt;