From: Eric Dumazet <edumazet@google.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S . Miller" <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
Eric Dumazet <edumazet@google.com>,
Eric Dumazet <eric.dumazet@gmail.com>, bpf <bpf@vger.kernel.org>
Subject: [PATCH bpf-next] bpf: align struct bpf_prog_stats
Date: Fri, 11 Oct 2019 11:11:40 -0700 [thread overview]
Message-ID: <20191011181140.2898-1-edumazet@google.com> (raw)
Do not risk spanning these small structures on two cache lines.
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
include/linux/bpf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 5b9d2233860654512da6ff5ec8bf56f2343ed722..282e28bf41ec627cad63c6b5bc3f439dc5f58f56 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;
--
2.23.0.700.g56cf767bdb-goog
next reply other threads:[~2019-10-11 18:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-11 18:11 Eric Dumazet [this message]
2019-10-11 21:23 ` [PATCH bpf-next] bpf: align struct bpf_prog_stats Daniel Borkmann
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