From 96a9b4d31eba4722ba7aad2cc15118a7799f499f Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sat, 25 Mar 2006 03:08:10 -0800 Subject: [PATCH] cpumask: uninline any_online_cpu() text data bss dec hex filename before: 3605597 1363528 363328 5332453 515de5 vmlinux after: 3605295 1363612 363200 5332107 515c8b vmlinux 218 bytes saved. Also, optimise any_online_cpu() out of existence on CONFIG_SMP=n. This function seems inefficient. Can't we simply AND the two masks, then use find_first_bit()? Cc: Paul Jackson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/cpumask.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'lib') diff --git a/lib/cpumask.c b/lib/cpumask.c index ea25a03..3a67dc5 100644 --- a/lib/cpumask.c +++ b/lib/cpumask.c @@ -31,3 +31,15 @@ int highest_possible_processor_id(void) return highest; } EXPORT_SYMBOL(highest_possible_processor_id); + +int __any_online_cpu(const cpumask_t *mask) +{ + int cpu; + + for_each_cpu_mask(cpu, *mask) { + if (cpu_online(cpu)) + break; + } + return cpu; +} +EXPORT_SYMBOL(__any_online_cpu); -- cgit v1.1