From: Eric Dumazet <edumazet@google.com>
To: "David S . Miller" <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>,
Eric Dumazet <edumazet@google.com>,
Eric Dumazet <eric.dumazet@gmail.com>
Subject: [PATCH net-next] net: align gnet_stats_basic_cpu struct
Date: Fri, 16 Nov 2018 07:43:29 -0800 [thread overview]
Message-ID: <20181116154329.247947-1-edumazet@google.com> (raw)
This structure is small (12 or 16 bytes depending on 64bit
or 32bit kernels), but we do not want it spanning two cache lines.
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
include/net/gen_stats.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index 946bd53a9f81dff5946579514360a9e5eaf3489b..ca23860adbb956fcfff3605068fdedf59073ce1a 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -10,7 +10,7 @@
struct gnet_stats_basic_cpu {
struct gnet_stats_basic_packed bstats;
struct u64_stats_sync syncp;
-};
+} __aligned(2 * sizeof(u64));
struct net_rate_estimator;
--
2.19.1.1215.g8438c0b245-goog
next reply other threads:[~2018-11-17 1:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 15:43 Eric Dumazet [this message]
2018-11-18 5:37 ` [PATCH net-next] net: align gnet_stats_basic_cpu struct David Miller
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