diff options
| author | Linus Torvalds <torvalds@athlon.transmeta.com> | 2002-02-04 18:12:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@athlon.transmeta.com> | 2002-02-04 18:12:47 -0800 |
| commit | d39a11f309a4fdeeed232dd6c0f00604d11a4aea (patch) | |
| tree | 7a7f994448bd8f12ff077bbffb1dca345dfe8234 /include/asm-alpha/pgalloc.h | |
| parent | 1a0153507ffae9cf3350e76c12d441788c0191e1 (diff) | |
v2.4.3.3 -> v2.4.3.4
- David Miller: sparc rw semaphores moved over
- Alan Cox: yet more resyncs
- NIIBE Yutaka: Super-H driver update
- David Howells: more rw-sem cleanups, updates
- USB updates
- Al Viro: filesystem init cleanup
Diffstat (limited to 'include/asm-alpha/pgalloc.h')
| -rw-r--r-- | include/asm-alpha/pgalloc.h | 79 |
1 files changed, 25 insertions, 54 deletions
diff --git a/include/asm-alpha/pgalloc.h b/include/asm-alpha/pgalloc.h index 7e377bdfd5c3..3ab3874d6ed8 100644 --- a/include/asm-alpha/pgalloc.h +++ b/include/asm-alpha/pgalloc.h @@ -241,6 +241,9 @@ extern struct pgtable_cache_struct { #define pte_quicklist (quicklists.pte_cache) #define pgtable_cache_size (quicklists.pgtable_cache_sz) +#define pmd_populate(mm, pmd, pte) pmd_set(pmd, pte) +#define pgd_populate(mm, pgd, pmd) pgd_set(pgd, pmd) + extern pgd_t *get_pgd_slow(void); static inline pgd_t *get_pgd_fast(void) @@ -268,9 +271,15 @@ static inline void free_pgd_slow(pgd_t *pgd) free_page((unsigned long)pgd); } -extern pmd_t *get_pmd_slow(pgd_t *pgd, unsigned long address_premasked); +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) +{ + pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL); + if (ret) + clear_page(ret); + return ret; +} -static inline pmd_t *get_pmd_fast(void) +static inline pmd_t *pmd_alloc_one_fast(struct mm_struct *mm, unsigned long address) { unsigned long *ret; @@ -282,21 +291,27 @@ static inline pmd_t *get_pmd_fast(void) return (pmd_t *)ret; } -static inline void free_pmd_fast(pmd_t *pmd) +static inline void pmd_free_fast(pmd_t *pmd) { *(unsigned long *)pmd = (unsigned long) pte_quicklist; pte_quicklist = (unsigned long *) pmd; pgtable_cache_size++; } -static inline void free_pmd_slow(pmd_t *pmd) +static inline void pmd_free_slow(pmd_t *pmd) { free_page((unsigned long)pmd); } -extern pte_t *get_pte_slow(pmd_t *pmd, unsigned long address_preadjusted); +static inline pte_t *pte_alloc_one(struct mm_struct *mm, unsigned long address) +{ + pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL); + if (pte) + clear_page(pte); + return pte; +} -static inline pte_t *get_pte_fast(void) +static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm, unsigned long address) { unsigned long *ret; @@ -308,67 +323,23 @@ static inline pte_t *get_pte_fast(void) return (pte_t *)ret; } -static inline void free_pte_fast(pte_t *pte) +static inline void pte_free_fast(pte_t *pte) { *(unsigned long *)pte = (unsigned long) pte_quicklist; pte_quicklist = (unsigned long *) pte; pgtable_cache_size++; } -static inline void free_pte_slow(pte_t *pte) +static inline void pte_free_slow(pte_t *pte) { free_page((unsigned long)pte); } -extern void __bad_pte(pmd_t *pmd); -extern void __bad_pmd(pgd_t *pgd); - -#define pte_free_kernel(pte) free_pte_fast(pte) -#define pte_free(pte) free_pte_fast(pte) -#define pmd_free_kernel(pmd) free_pmd_fast(pmd) -#define pmd_free(pmd) free_pmd_fast(pmd) +#define pte_free(pte) pte_free_fast(pte) +#define pmd_free(pmd) pmd_free_fast(pmd) #define pgd_free(pgd) free_pgd_fast(pgd) #define pgd_alloc() get_pgd_fast() -static inline pte_t * pte_alloc(pmd_t *pmd, unsigned long address) -{ - address = (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1); - if (pmd_none(*pmd)) { - pte_t *page = get_pte_fast(); - - if (!page) - return get_pte_slow(pmd, address); - pmd_set(pmd, page); - return page + address; - } - if (pmd_bad(*pmd)) { - __bad_pte(pmd); - return NULL; - } - return (pte_t *) pmd_page(*pmd) + address; -} - -static inline pmd_t * pmd_alloc(pgd_t *pgd, unsigned long address) -{ - address = (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1); - if (pgd_none(*pgd)) { - pmd_t *page = get_pmd_fast(); - - if (!page) - return get_pmd_slow(pgd, address); - pgd_set(pgd, page); - return page + address; - } - if (pgd_bad(*pgd)) { - __bad_pmd(pgd); - return NULL; - } - return (pmd_t *) pgd_page(*pgd) + address; -} - -#define pte_alloc_kernel pte_alloc -#define pmd_alloc_kernel pmd_alloc - extern int do_check_pgt_cache(int, int); #endif /* _ALPHA_PGALLOC_H */ |
