From: hejianet <hejianet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-sctp@vger.kernel.org,
linux-kernel@vger.kernel.org, kuznet@ms2.inr.ac.ru,
jmorris@namei.org, yoshfuji@linux-ipv6.org, kaber@trash.net,
vyasevich@gmail.com, nhorman@tuxdriver.com,
steffen.klassert@secunet.com, herbert@gondor.apana.org.au,
marcelo.leitner@gmail.com
Subject: Re: [PATCH v5 0/7] Reduce cache miss for snmp_fold_field
Date: Wed, 28 Sep 2016 21:45:32 +0800 [thread overview]
Message-ID: <c44daa11-dc57-84fa-35cc-40ee0fe293f3@gmail.com> (raw)
In-Reply-To: <20160928.050817.110671274247345232.davem@davemloft.net>
On 9/28/16 5:08 PM, David Miller wrote:
> From: Jia He <hejianet@gmail.com>
> Date: Wed, 28 Sep 2016 14:22:21 +0800
>
>> v5:
>> - order local variables from longest to shortest line
> I still see many cases where this problem still exists. Please
> do not resubmit this patch series until you fix all of them.
>
> Patch #2:
>
> -static int snmp_seq_show(struct seq_file *seq, void *v)
> +static int snmp_seq_show_ipstats(struct seq_file *seq, void *v)
> {
> int i;
> + u64 buff64[IPSTATS_MIB_MAX];
> struct net *net = seq->private;
>
> The order should be "net" then "buff64" then "i".
Sorry for my bad eyesight and quick hand :(
B.R.
Jia
>
> +static int snmp_seq_show_tcp_udp(struct seq_file *seq, void *v)
> +{
> + int i;
> + struct net *net = seq->private;
> + unsigned long buff[TCPUDP_MIB_MAX];
>
> The order should be "buff", "net", then "i".
>
> Patch #3:
>
> @@ -192,13 +197,19 @@ static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
> const struct snmp_mib *itemlist)
> {
> int i;
> - unsigned long val;
> -
> ...
> + unsigned long buff[SNMP_MIB_MAX];
>
> The order should be "buff" then "i".
>
> @@ -206,10 +217,13 @@ static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu *mib,
> const struct snmp_mib *itemlist, size_t syncpoff)
> {
> int i;
> + u64 buff64[SNMP_MIB_MAX];
>
> Likewise.
>
> I cannot be any more explicit in my request than this.
>
next prev parent reply other threads:[~2016-09-28 13:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-28 6:22 [PATCH v5 0/7] Reduce cache miss for snmp_fold_field Jia He
2016-09-28 6:22 ` [PATCH v5 1/7] net:snmp: Introduce generic interfaces for snmp_get_cpu_field{,64} Jia He
2016-09-28 6:22 ` [PATCH v5 2/7] proc: Reduce cache miss in snmp_seq_show Jia He
2016-09-28 6:22 ` [PATCH v5 3/7] proc: Reduce cache miss in snmp6_seq_show Jia He
2016-09-28 6:22 ` [PATCH v5 4/7] proc: Reduce cache miss in sctp_snmp_seq_show Jia He
2016-09-28 6:22 ` [PATCH v5 5/7] proc: Reduce cache miss in xfrm_statistics_seq_show Jia He
2016-09-28 6:22 ` [PATCH v5 6/7] ipv6: Remove useless parameter in __snmp6_fill_statsdev Jia He
2016-09-28 6:22 ` [PATCH v5 7/7] net: Suppress the "Comparison to NULL could be written" warnings Jia He
2016-09-28 9:08 ` [PATCH v5 0/7] Reduce cache miss for snmp_fold_field David Miller
2016-09-28 13:45 ` hejianet [this message]
2016-09-28 15:58 ` Local variable ordering (was Re: [PATCH v5 0/7] Reduce cache miss for snmp_fold_field) Edward Cree
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