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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-04-10 22:52:50 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-11 06:18:31 -0700
commit6f912042256c12b0927438122594f5379b364f5d (patch)
treec11949814057b356d5896e7f025ec15132dbff78 /net/ipv4
parentdd7ba3b8b15f9c65366986d723ae83254d8d78b7 (diff)
[PATCH] for_each_possible_cpu: network codes
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu under /net Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/icmp.c2
-rw-r--r--net/ipv4/ipcomp.c8
-rw-r--r--net/ipv4/netfilter/arp_tables.c4
-rw-r--r--net/ipv4/netfilter/ip_conntrack_core.c2
-rw-r--r--net/ipv4/netfilter/ip_tables.c4
-rw-r--r--net/ipv4/proc.c4
-rw-r--r--net/ipv4/route.c2
7 files changed, 13 insertions, 13 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 9831fd2c73a0..2a0455911ee0 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -1107,7 +1107,7 @@ void __init icmp_init(struct net_proto_family *ops)
struct inet_sock *inet;
int i;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
int err;
err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 0a1d86a0f632..04a429465665 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -290,7 +290,7 @@ static void ipcomp_free_scratches(void)
if (!scratches)
return;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
void *scratch = *per_cpu_ptr(scratches, i);
if (scratch)
vfree(scratch);
@@ -313,7 +313,7 @@ static void **ipcomp_alloc_scratches(void)
ipcomp_scratches = scratches;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
void *scratch = vmalloc(IPCOMP_SCRATCH_SIZE);
if (!scratch)
return NULL;
@@ -344,7 +344,7 @@ static void ipcomp_free_tfms(struct crypto_tfm **tfms)
if (!tfms)
return;
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
struct crypto_tfm *tfm = *per_cpu_ptr(tfms, cpu);
crypto_free_tfm(tfm);
}
@@ -384,7 +384,7 @@ static struct crypto_tfm **ipcomp_alloc_tfms(const char *alg_name)
if (!tfms)
goto error;
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
struct crypto_tfm *tfm = crypto_alloc_tfm(alg_name, 0);
if (!tfm)
goto error;
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index a44a5d73457d..c2d92f99a2b8 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -646,7 +646,7 @@ static int translate_table(const char *name,
}
/* And one copy for every other CPU */
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
if (newinfo->entries[i] && newinfo->entries[i] != entry0)
memcpy(newinfo->entries[i], entry0, newinfo->size);
}
@@ -696,7 +696,7 @@ static void get_counters(const struct xt_table_info *t,
counters,
&i);
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
if (cpu == curcpu)
continue;
i = 0;
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index ceaabc18202b..979a2eac6f00 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -133,7 +133,7 @@ static void ip_ct_event_cache_flush(void)
struct ip_conntrack_ecache *ecache;
int cpu;
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
ecache = &per_cpu(ip_conntrack_ecache, cpu);
if (ecache->ct)
ip_conntrack_put(ecache->ct);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index d5b8cdd361ce..d25ac8ba6eba 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -735,7 +735,7 @@ translate_table(const char *name,
}
/* And one copy for every other CPU */
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
if (newinfo->entries[i] && newinfo->entries[i] != entry0)
memcpy(newinfo->entries[i], entry0, newinfo->size);
}
@@ -788,7 +788,7 @@ get_counters(const struct xt_table_info *t,
counters,
&i);
- for_each_cpu(cpu) {
+ for_each_possible_cpu(cpu) {
if (cpu == curcpu)
continue;
i = 0;
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 1b167c4bb3be..d61e2a9d394d 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -49,7 +49,7 @@ static int fold_prot_inuse(struct proto *proto)
int res = 0;
int cpu;
- for_each_cpu(cpu)
+ for_each_possible_cpu(cpu)
res += proto->stats[cpu].inuse;
return res;
@@ -91,7 +91,7 @@ fold_field(void *mib[], int offt)
unsigned long res = 0;
int i;
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
res += *(((unsigned long *) per_cpu_ptr(mib[0], i)) + offt);
res += *(((unsigned long *) per_cpu_ptr(mib[1], i)) + offt);
}
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 94fcbc5e5a1b..ff434821909f 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -3083,7 +3083,7 @@ static int ip_rt_acct_read(char *buffer, char **start, off_t offset,
memcpy(dst, src, length);
/* Add the other cpus in, one int at a time */
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
unsigned int j;
src = ((u32 *) IP_RT_ACCT_CPU(i)) + offset;