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HWPOISON: remove the free buddy page handler 

The buddy page has already be handled in the very beginning.
So remove redundant code.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
hifive-unleashed-5.1
Wu Fengguang 2009-12-16 12:19:58 +01:00 committed by Andi Kleen
parent dc2a1cbf7d
commit 95d01fc664
1 changed files with 4 additions and 10 deletions
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14
mm/memory-failure.c
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@ -400,14 +400,6 @@ static int me_unknown(struct page *p, unsigned long pfn)
return FAILED;
}
/*
* Free memory
*/
static int me_free(struct page *p, unsigned long pfn)
{
return DELAYED;
}
/*
* Clean (or cleaned) page cache page.
*/
@ -604,7 +596,6 @@ static int me_huge_page(struct page *p, unsigned long pfn)
#define tail (1UL << PG_tail)
#define compound (1UL << PG_compound)
#define slab (1UL << PG_slab)
#define buddy (1UL << PG_buddy)
#define reserved (1UL << PG_reserved)
static struct page_state {
@ -614,7 +605,10 @@ static struct page_state {
int (*action)(struct page *p, unsigned long pfn);
} error_states[] = {
{ reserved, reserved, "reserved kernel", me_ignore },
{ buddy, buddy, "free kernel", me_free },
/*
* free pages are specially detected outside this table:
* PG_buddy pages only make a small fraction of all free pages.
*/
/*
* Could in theory check if slab page is free or if we can drop