Re: [patch, 2.5] __vmalloc allocates spurious page?

[Marcus Alanen]

>The unnecessary page is allocated only if size is initially a multiple 
>of PAGE_SIZE, which sounds like a common case.

Actually, size is already PAGE_ALIGNed, so we get the amount of pages
even easier.

Marcus

diff -Naurd --exclude-from=/home/maalanen/linux/base/diff_exclude linus-2.5.42/mm/vmalloc.c msa-2.5.42/mm/vmalloc.c
--- linus-2.5.42/mm/vmalloc.c	Sat Oct 12 16:42:57 2002
+++ msa-2.5.42/mm/vmalloc.c	Wed Oct 16 00:52:33 2002
@@ -387,7 +387,7 @@
 	if (!area)
 		return NULL;
 
-	nr_pages = (size+PAGE_SIZE) >> PAGE_SHIFT;
+	nr_pages = size >> PAGE_SHIFT;
 	array_size = (nr_pages * sizeof(struct page *));
 
 	area->nr_pages = nr_pages;