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Message-Id: <200812300853.43035.rusty@rustcorp.com.au>
Date: Tue, 30 Dec 2008 08:53:42 +1030
From: Rusty Russell <rusty@...tcorp.com.au>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, Mike Travis <travis@....com>,
Ingo Molnar <mingo@...e.hu>
Subject: cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits: net
Impact: cleanup, future-proof
In future all cpumask ops will only be valid (in general) for bit
numbers < nr_cpu_ids. So use that instead of NR_CPUS in iterators
and other comparisons.
This is always safe: no cpu number can be >= nr_cpu_ids, and
nr_cpu_ids is initialized to NR_CPUS at boot.
Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
Signed-off-by: Mike Travis <travis@....com>
Acked-by: Ingo Molnar <mingo@...e.hu>
---
net/core/neighbour.c | 4 ++--
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c | 4 ++--
net/ipv4/route.c | 4 ++--
net/netfilter/nf_conntrack_standalone.c | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)
diff -r bb80787e9617 net/core/neighbour.c
--- a/net/core/neighbour.c Fri Oct 24 00:27:01 2008 +1100
+++ b/net/core/neighbour.c Fri Oct 24 00:28:25 2008 +1100
@@ -2423,7 +2423,7 @@ static void *neigh_stat_seq_start(struct
if (*pos == 0)
return SEQ_START_TOKEN;
- for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
@@ -2438,7 +2438,7 @@ static void *neigh_stat_seq_next(struct
struct neigh_table *tbl = pde->data;
int cpu;
- for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
diff -r bb80787e9617 net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c Fri Oct 24 00:27:01 2008 +1100
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c Fri Oct 24 00:28:25 2008 +1100
@@ -291,7 +291,7 @@ static void *ct_cpu_seq_start(struct seq
if (*pos == 0)
return SEQ_START_TOKEN;
- for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
@@ -306,7 +306,7 @@ static void *ct_cpu_seq_next(struct seq_
struct net *net = seq_file_net(seq);
int cpu;
- for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
diff -r bb80787e9617 net/ipv4/route.c
--- a/net/ipv4/route.c Fri Oct 24 00:27:01 2008 +1100
+++ b/net/ipv4/route.c Fri Oct 24 00:28:25 2008 +1100
@@ -427,7 +427,7 @@ static void *rt_cpu_seq_start(struct seq
if (*pos == 0)
return SEQ_START_TOKEN;
- for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
@@ -440,7 +440,7 @@ static void *rt_cpu_seq_next(struct seq_
{
int cpu;
- for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
diff -r bb80787e9617 net/netfilter/nf_conntrack_standalone.c
--- a/net/netfilter/nf_conntrack_standalone.c Fri Oct 24 00:27:01 2008 +1100
+++ b/net/netfilter/nf_conntrack_standalone.c Fri Oct 24 00:28:25 2008 +1100
@@ -200,7 +200,7 @@ static void *ct_cpu_seq_start(struct seq
if (*pos == 0)
return SEQ_START_TOKEN;
- for (cpu = *pos-1; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu + 1;
@@ -215,7 +215,7 @@ static void *ct_cpu_seq_next(struct seq_
struct net *net = seq_file_net(seq);
int cpu;
- for (cpu = *pos; cpu < NR_CPUS; ++cpu) {
+ for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu + 1;
--
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