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| author | Wu Fengguang <fengguang.wu@intel.com> | 2009-12-16 12:19:58 +0100 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2009-12-16 12:19:58 +0100 |
| commit | 95d01fc664b9476e0d18e3d745bb209a42a33588 (patch) | |
| tree | 0b6a46b0f2e13fb169e64ebf0b270a52c666e7f6 /mm/memory-failure.c | |
| parent | dc2a1cbf7d862e9d0abea1d1b4c8712dfbb5a398 (diff) | |
| download | linux-95d01fc664b9476e0d18e3d745bb209a42a33588.tar.bz2 | |
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>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 9a285f8cdbe1..676ab394200e 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -401,14 +401,6 @@ static int me_unknown(struct page *p, unsigned long pfn) } /* - * Free memory - */ -static int me_free(struct page *p, unsigned long pfn) -{ - return DELAYED; -} - -/* * Clean (or cleaned) page cache page. */ static int me_pagecache_clean(struct page *p, unsigned long pfn) @@ -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 |