mirror of https://gitee.com/openkylin/linux.git
[PATCH] mm: arch_free_page fix
After the PG_reserved check was added, arch_free_page was being called in the wrong place (it could be called for a page we don't actually want to free). Fix that. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
6993974997
commit
dafb13673c
|
@ -495,7 +495,6 @@ static void __free_pages_ok(struct page *page, unsigned int order)
|
|||
int i;
|
||||
int reserved = 0;
|
||||
|
||||
arch_free_page(page, order);
|
||||
if (!PageHighMem(page))
|
||||
debug_check_no_locks_freed(page_address(page),
|
||||
PAGE_SIZE<<order);
|
||||
|
@ -505,7 +504,9 @@ static void __free_pages_ok(struct page *page, unsigned int order)
|
|||
if (reserved)
|
||||
return;
|
||||
|
||||
arch_free_page(page, order);
|
||||
kernel_map_pages(page, 1 << order, 0);
|
||||
|
||||
local_irq_save(flags);
|
||||
__count_vm_events(PGFREE, 1 << order);
|
||||
free_one_page(page_zone(page), page, order);
|
||||
|
@ -781,13 +782,12 @@ static void fastcall free_hot_cold_page(struct page *page, int cold)
|
|||
struct per_cpu_pages *pcp;
|
||||
unsigned long flags;
|
||||
|
||||
arch_free_page(page, 0);
|
||||
|
||||
if (PageAnon(page))
|
||||
page->mapping = NULL;
|
||||
if (free_pages_check(page))
|
||||
return;
|
||||
|
||||
arch_free_page(page, 0);
|
||||
kernel_map_pages(page, 1, 0);
|
||||
|
||||
pcp = &zone_pcp(zone, get_cpu())->pcp[cold];
|
||||
|
|
Loading…
Reference in New Issue