mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

[PATCH] bad_page: clear reclaim and slab 

Since free_pages_check complains if PG_reclaim or PG_slab is set, bad_page
ought to clear them to avoid repetitive reports (Nikita noticed this too).
Let prep_new_page check page_count and PG_slab as free_pages_check does.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Hugh Dickins 2005-06-21 17:15:08 -07:00 committed by Linus Torvalds
parent 45918e1a8b
commit 334795eca4
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
mm/page_alloc.c
View File

@ -105,11 +105,13 @@ static void bad_page(const char *function, struct page *page)
printk(KERN_EMERG "Backtrace:\n");
dump_stack();
printk(KERN_EMERG "Trying to fix it up, but a reboot is needed\n");
page->flags &= ~(1 << PG_private |
page->flags &= ~(1 << PG_lru |
1 << PG_private |
1 << PG_locked |
1 << PG_lru |
1 << PG_active |
1 << PG_dirty |
1 << PG_reclaim |
1 << PG_slab |
1 << PG_swapcache |
1 << PG_writeback);
set_page_count(page, 0);
@ -440,14 +442,17 @@ void set_page_refs(struct page *page, int order)
*/
static void prep_new_page(struct page *page, int order)
{
if (page->mapping || page_mapcount(page) ||
(page->flags & (
if ( page_mapcount(page) ||
page->mapping != NULL ||
page_count(page) != 0 ||
(page->flags & (
1 << PG_lru |
1 << PG_private |
1 << PG_locked |
1 << PG_lru |
1 << PG_active |
1 << PG_dirty |
1 << PG_reclaim |
1 << PG_slab |
1 << PG_swapcache |
1 << PG_writeback )))
bad_page(__FUNCTION__, page);