FEX-Emu/linux
1
0
Fork 0
mirror of https://github.com/FEX-Emu/linux.git synced 2024-12-21 08:53:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

bootmem: Fix __free_pages_bootmem() to use @order properly

Browse Source 
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@kernel.org>
Link: http://lkml.kernel.org/r/1310457490-3356-3-git-send-email-tj@kernel.org
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Tejun Heo 2011-07-12 09:58:06 +02:00 committed by H. Peter Anvin
parent bf61549a2d
commit 53348f2716
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/page_alloc.c
View File

@ -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);