diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/mm/pgtable_32.c | 23 | ||||
| -rw-r--r-- | include/asm-x86/pgalloc_32.h | 20 |
2 files changed, 26 insertions, 17 deletions
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c index 2ae5999a795a..cb3aa470249b 100644 --- a/arch/x86/mm/pgtable_32.c +++ b/arch/x86/mm/pgtable_32.c @@ -376,3 +376,26 @@ void check_pgt_cache(void) { quicklist_trim(0, pgd_dtor, 25, 16); } + +void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte) +{ + paravirt_release_pt(page_to_pfn(pte)); + tlb_remove_page(tlb, pte); +} + +#ifdef CONFIG_X86_PAE + +void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) +{ + /* This is called just after the pmd has been detached from + the pgd, which requires a full tlb flush to be recognized + by the CPU. Rather than incurring multiple tlb flushes + while the address space is being pulled down, make the tlb + gathering machinery do a full flush when we're done. */ + tlb->fullmm = 1; + + paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); + tlb_remove_page(tlb, virt_to_page(pmd)); +} + +#endif diff --git a/include/asm-x86/pgalloc_32.h b/include/asm-x86/pgalloc_32.h index 10c2b452e64c..7641e7b5d931 100644 --- a/include/asm-x86/pgalloc_32.h +++ b/include/asm-x86/pgalloc_32.h @@ -3,6 +3,7 @@ #include <linux/threads.h> #include <linux/mm.h> /* for struct page */ +#include <linux/pagemap.h> #include <asm/tlb.h> #include <asm-generic/tlb.h> @@ -51,11 +52,7 @@ static inline void pte_free(struct page *pte) } -static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte) -{ - paravirt_release_pt(page_to_pfn(pte)); - tlb_remove_page(tlb, pte); -} +extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte); #ifdef CONFIG_X86_PAE /* @@ -72,18 +69,7 @@ static inline void pmd_free(pmd_t *pmd) free_page((unsigned long)pmd); } -static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd) -{ - /* This is called just after the pmd has been detached from - the pgd, which requires a full tlb flush to be recognized - by the CPU. Rather than incurring multiple tlb flushes - while the address space is being pulled down, make the tlb - gathering machinery do a full flush when we're done. */ - tlb->fullmm = 1; - - paravirt_release_pd(__pa(pmd) >> PAGE_SHIFT); - tlb_remove_page(tlb, virt_to_page(pmd)); -} +extern void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd); static inline void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) { |