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Subject[patch] page_alloc.c
This micro patch removes redundant waitqueue_active() from
__alloc_pages()
It is not too much of a speedup, but still...


Petko--- linux-2.4.12/mm/page_alloc.c.orig Mon Oct 15 15:52:39 2001
+++ linux/mm/page_alloc.c Mon Oct 15 15:53:45 2001
@@ -335,8 +335,7 @@

classzone->need_balance = 1;
mb();
- if (waitqueue_active(&kswapd_wait))
- wake_up_interruptible(&kswapd_wait);
+ wake_up_interruptible(&kswapd_wait);

zone = zonelist->zones;
for (;;) {
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