[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>

1 files changed, 6 insertions, 6 deletions

diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 01eae97c53d9..66bd93252c4e 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -829,7 +829,7 @@ static int translate_table(struct ebt_replace *repl,
                                                 * sizeof(struct ebt_chainstack));
                 if (!newinfo->chainstack)
                         return -ENOMEM;
-                for_each_cpu(i) {
+                for_each_possible_cpu(i) {
                         newinfo->chainstack[i] =
                            vmalloc(udc_cnt * sizeof(struct ebt_chainstack));
                         if (!newinfo->chainstack[i]) {
@@ -901,7 +901,7 @@ static void get_counters(struct ebt_counter *oldcounters,
                sizeof(struct ebt_counter) * nentries);
 
         /* add other counters to those of cpu 0 */
-        for_each_cpu(cpu) {
+        for_each_possible_cpu(cpu) {
                 if (cpu == 0)
                         continue;
                 counter_base = COUNTER_BASE(oldcounters, nentries, cpu);
@@ -1036,7 +1036,7 @@ static int do_replace(void __user *user, unsigned int len)
 
         vfree(table->entries);
         if (table->chainstack) {
-                for_each_cpu(i)
+                for_each_possible_cpu(i)
                         vfree(table->chainstack[i]);
                 vfree(table->chainstack);
         }
@@ -1054,7 +1054,7 @@ free_counterstmp:
         vfree(counterstmp);
         /* can be initialized in translate_table() */
         if (newinfo->chainstack) {
-                for_each_cpu(i)
+                for_each_possible_cpu(i)
                         vfree(newinfo->chainstack[i]);
                 vfree(newinfo->chainstack);
         }
@@ -1201,7 +1201,7 @@ free_unlock:
         mutex_unlock(&ebt_mutex);
 free_chainstack:
         if (newinfo->chainstack) {
-                for_each_cpu(i)
+                for_each_possible_cpu(i)
                         vfree(newinfo->chainstack[i]);
                 vfree(newinfo->chainstack);
         }
@@ -1224,7 +1224,7 @@ void ebt_unregister_table(struct ebt_table *table)
         mutex_unlock(&ebt_mutex);
         vfree(table->private->entries);
         if (table->private->chainstack) {
-                for_each_cpu(i)
+                for_each_possible_cpu(i)
                         vfree(table->private->chainstack[i]);
                 vfree(table->private->chainstack);
         }