mm/page_alloc.c: remove hand-coded get_order()

Remove hand-coded get_order() from page_alloc.c.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index d3358ef..d1cf4f0 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4345,9 +4345,7 @@ void *__init alloc_large_system_hash(const char *tablename,
                else if (hashdist)
                        table = __vmalloc(size, GFP_ATOMIC, PAGE_KERNEL);
                else {
-                       unsigned long order;
-                       for (order = 0; ((1UL << order) << PAGE_SHIFT) < size; order++)
-                               ;
+                       unsigned long order = get_order(size);
                        table = (void*) __get_free_pages(GFP_ATOMIC, order);
                        /*
                         * If bucketsize is not a power-of-two, we may free