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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-03-17 16:36:57 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:57:30 +0200 |
| commit | 397f687ab7f840dbe50353c4b60108672b653d0c (patch) | |
| tree | 4b33f2c8e999029a2360bf2dd35cb5f72a8f7041 /include/asm-x86/pgalloc.h | |
| parent | 1d262d3a4932b5ae7222c8d9900696650ee95188 (diff) | |
| download | lwn-397f687ab7f840dbe50353c4b60108672b653d0c.tar.gz lwn-397f687ab7f840dbe50353c4b60108672b653d0c.zip | |
x86: move pte functions into common asm/pgalloc.h
Common definitions for 2-level pagetable functions.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/pgalloc.h')
| -rw-r--r-- | include/asm-x86/pgalloc.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-x86/pgalloc.h b/include/asm-x86/pgalloc.h index 28773594f741..0d15e21eefec 100644 --- a/include/asm-x86/pgalloc.h +++ b/include/asm-x86/pgalloc.h @@ -24,6 +24,22 @@ extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long); extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long); +/* Should really implement gc for free page table pages. This could be + done with a reference count in struct page. */ + +static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) +{ + BUG_ON((unsigned long)pte & (PAGE_SIZE-1)); + free_page((unsigned long)pte); +} + +static inline void pte_free(struct mm_struct *mm, struct page *pte) +{ + __free_page(pte); +} + +extern void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte); + #ifdef CONFIG_X86_32 # include "pgalloc_32.h" #else |