Commit 95d01fc6 authored by Wu Fengguang's avatar Wu Fengguang Committed by Andi Kleen
Browse files

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: default avatarWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
parent dc2a1cbf

mm/memory-failure.c

+4 −10
Original line number Diff line number Diff line
@@ -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