From 53b8a315b76a3f3c70a5644976c0095460eb13d8 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Tue, 20 Feb 2007 13:57:51 -0800 Subject: [PATCH] Convert highest_possible_processor_id to nr_cpu_ids We frequently need the maximum number of possible processors in order to allocate arrays for all processors. So far this was done using highest_possible_processor_id(). However, we do need the number of processors not the highest id. Moreover the number was so far dynamically calculated on each invokation. The number of possible processors does not change when the system is running. We can therefore calculate that number once. Signed-off-by: Christoph Lameter Cc: Frederik Deweerdt Cc: Neil Brown Cc: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- net/bridge/netfilter/ebtables.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'net/bridge') diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 34c49799f9b..ac9984f98e5 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -833,8 +833,7 @@ static int translate_table(char *name, struct ebt_table_info *newinfo) /* this will get free'd in do_replace()/ebt_register_table() if an error occurs */ newinfo->chainstack = - vmalloc((highest_possible_processor_id()+1) - * sizeof(*(newinfo->chainstack))); + vmalloc(nr_cpu_ids * sizeof(*(newinfo->chainstack))); if (!newinfo->chainstack) return -ENOMEM; for_each_possible_cpu(i) { @@ -947,8 +946,7 @@ static int do_replace(void __user *user, unsigned int len) if (tmp.num_counters >= INT_MAX / sizeof(struct ebt_counter)) return -ENOMEM; - countersize = COUNTER_OFFSET(tmp.nentries) * - (highest_possible_processor_id()+1); + countersize = COUNTER_OFFSET(tmp.nentries) * nr_cpu_ids; newinfo = vmalloc(sizeof(*newinfo) + countersize); if (!newinfo) return -ENOMEM; @@ -1168,8 +1166,7 @@ int ebt_register_table(struct ebt_table *table) return -EINVAL; } - countersize = COUNTER_OFFSET(repl->nentries) * - (highest_possible_processor_id()+1); + countersize = COUNTER_OFFSET(repl->nentries) * nr_cpu_ids; newinfo = vmalloc(sizeof(*newinfo) + countersize); ret = -ENOMEM; if (!newinfo) -- cgit v1.2.3