xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] for_each_possible_cpu: network codes

Browse Source 
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>
This commit is contained in:
KAMEZAWA Hiroyuki
2006-04-10 22:52:50 -07:00
committed by Linus Torvalds
parent dd7ba3b8b1
commit 6f91204225
20 changed files with 40 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/core/dev.c
View File

@@ -3346,7 +3346,7 @@ static int __init net_dev_init(void)
* Initialise the packet receive queues.
*/
for_each_cpu(i) {
for_each_possible_cpu(i) {
struct softnet_data *queue;
queue = &per_cpu(softnet_data, i);

4
net/core/flow.c
View File

@@ -79,7 +79,7 @@ static void flow_cache_new_hashrnd(unsigned long arg)
{
int i;
for_each_cpu(i)
for_each_possible_cpu(i)
flow_hash_rnd_recalc(i) = 1;
flow_hash_rnd_timer.expires = jiffies + FLOW_HASH_RND_PERIOD;
@@ -361,7 +361,7 @@ static int __init flow_cache_init(void)
flow_hash_rnd_timer.expires = jiffies + FLOW_HASH_RND_PERIOD;
add_timer(&flow_hash_rnd_timer);
for_each_cpu(i)
for_each_possible_cpu(i)
flow_cache_cpu_prepare(i);
hotcpu_notifier(flow_cache_cpu, 0);

2
net/core/neighbour.c
View File

@@ -1627,7 +1627,7 @@ static int neightbl_fill_info(struct neigh_table *tbl, struct sk_buff *skb,
memset(&ndst, 0, sizeof(ndst));
for_each_cpu(cpu) {
for_each_possible_cpu(cpu) {
struct neigh_statistics *st;
st = per_cpu_ptr(tbl->stats, cpu);

4
net/core/utils.c
View File

@@ -121,7 +121,7 @@ void __init net_random_init(void)
{
int i;
for_each_cpu(i) {
for_each_possible_cpu(i) {
struct nrnd_state *state = &per_cpu(net_rand_state,i);
__net_srandom(state, i+jiffies);
}
@@ -133,7 +133,7 @@ static int net_random_reseed(void)
unsigned long seed[NR_CPUS];
get_random_bytes(seed, sizeof(seed));
for_each_cpu(i) {
for_each_possible_cpu(i) {
struct nrnd_state *state = &per_cpu(net_rand_state,i);
__net_srandom(state, seed[i]);
}