diff options
Diffstat (limited to 'arch/x86/mm/pageattr.c')
-rw-r--r-- | arch/x86/mm/pageattr.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index e245775ec856..24952fdc7e40 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c | |||
@@ -12,6 +12,7 @@ | |||
12 | #include <linux/seq_file.h> | 12 | #include <linux/seq_file.h> |
13 | #include <linux/debugfs.h> | 13 | #include <linux/debugfs.h> |
14 | #include <linux/pfn.h> | 14 | #include <linux/pfn.h> |
15 | #include <linux/percpu.h> | ||
15 | 16 | ||
16 | #include <asm/e820.h> | 17 | #include <asm/e820.h> |
17 | #include <asm/processor.h> | 18 | #include <asm/processor.h> |
@@ -686,7 +687,7 @@ static int cpa_process_alias(struct cpa_data *cpa) | |||
686 | { | 687 | { |
687 | struct cpa_data alias_cpa; | 688 | struct cpa_data alias_cpa; |
688 | unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT); | 689 | unsigned long laddr = (unsigned long)__va(cpa->pfn << PAGE_SHIFT); |
689 | unsigned long vaddr, remapped; | 690 | unsigned long vaddr; |
690 | int ret; | 691 | int ret; |
691 | 692 | ||
692 | if (cpa->pfn >= max_pfn_mapped) | 693 | if (cpa->pfn >= max_pfn_mapped) |
@@ -744,24 +745,6 @@ static int cpa_process_alias(struct cpa_data *cpa) | |||
744 | } | 745 | } |
745 | #endif | 746 | #endif |
746 | 747 | ||
747 | /* | ||
748 | * If the PMD page was partially used for per-cpu remapping, | ||
749 | * the recycled area needs to be split and modified. Because | ||
750 | * the area is always proper subset of a PMD page | ||
751 | * cpa->numpages is guaranteed to be 1 for these areas, so | ||
752 | * there's no need to loop over and check for further remaps. | ||
753 | */ | ||
754 | remapped = (unsigned long)pcpu_lpage_remapped((void *)laddr); | ||
755 | if (remapped) { | ||
756 | WARN_ON(cpa->numpages > 1); | ||
757 | alias_cpa = *cpa; | ||
758 | alias_cpa.vaddr = &remapped; | ||
759 | alias_cpa.flags &= ~(CPA_PAGES_ARRAY | CPA_ARRAY); | ||
760 | ret = __change_page_attr_set_clr(&alias_cpa, 0); | ||
761 | if (ret) | ||
762 | return ret; | ||
763 | } | ||
764 | |||
765 | return 0; | 748 | return 0; |
766 | } | 749 | } |
767 | 750 | ||