From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>, Tom Herbert <therbert@google.com>
Subject: [PATCH] snmp: fix SNMP_ADD_STATS()
Date: Wed, 23 Jun 2010 12:32:03 +0200 [thread overview]
Message-ID: <1277289123.2469.278.camel@edumazet-laptop> (raw)
commit aa2ea0586d9d (tcp: fix outsegs stat for TSO segments) incorrectly
assumed SNMP_ADD_STATS() was used from BH context.
Fix this using mib[!in_softirq()] instead of mib[0]
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Tom Herbert <therbert@google.com>
---
include/net/snmp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/net/snmp.h b/include/net/snmp.h
index 92456f1..899003d 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -134,7 +134,7 @@ struct linux_xfrm_mib {
#define SNMP_ADD_STATS_USER(mib, field, addend) \
this_cpu_add(mib[1]->mibs[field], addend)
#define SNMP_ADD_STATS(mib, field, addend) \
- this_cpu_add(mib[0]->mibs[field], addend)
+ this_cpu_add(mib[!in_softirq()]->mibs[field], addend)
/*
* Use "__typeof__(*mib[0]) *ptr" instead of "__typeof__(mib[0]) ptr"
* to make @ptr a non-percpu pointer.
next reply other threads:[~2010-06-23 10:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-23 10:32 Eric Dumazet [this message]
2010-06-23 18:48 ` [PATCH] snmp: fix SNMP_ADD_STATS() David Miller
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