a226f6c899 (FRV: Clean up bootmem allocator's page freeing algorithm)
separated out __free_pages_bootmem() from free_all_bootmem_core().
__free_pages_bootmem() takes @order argument but it assumes @order is
either 0 or ilog2(BITS_PER_LONG). Note that all the current users
match that assumption and this doesn't cause actual problems.
Fix it by using 1 << order instead of BITS_PER_LONG.
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9119faa..b6da6ed 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -705,10 +705,10 @@ void __meminit __free_pages_bootmem(struct page *page, unsigned int order)
int loop;
prefetchw(page);
- for (loop = 0; loop < BITS_PER_LONG; loop++) {
+ for (loop = 0; loop < (1 << order); loop++) {
struct page *p = &page[loop];
- if (loop + 1 < BITS_PER_LONG)
+ if (loop + 1 < (1 << order))
prefetchw(p + 1);
__ClearPageReserved(p);
set_page_count(p, 0);
--
1.7.6
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