diff options
Diffstat (limited to 'include/asm-i386/pgalloc.h')
| -rw-r--r-- | include/asm-i386/pgalloc.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/asm-i386/pgalloc.h b/include/asm-i386/pgalloc.h index 090573f59..67773c047 100644 --- a/include/asm-i386/pgalloc.h +++ b/include/asm-i386/pgalloc.h @@ -75,20 +75,26 @@ static inline pgd_t *get_pgd_fast(void) { unsigned long *ret; + preempt_disable(); if ((ret = pgd_quicklist) != NULL) { pgd_quicklist = (unsigned long *)(*ret); ret[0] = 0; pgtable_cache_size--; - } else + preempt_enable(); + } else { + preempt_enable(); ret = (unsigned long *)get_pgd_slow(); + } return (pgd_t *)ret; } static inline void free_pgd_fast(pgd_t *pgd) { + preempt_disable(); *(unsigned long *)pgd = (unsigned long) pgd_quicklist; pgd_quicklist = (unsigned long *) pgd; pgtable_cache_size++; + preempt_enable(); } static inline void free_pgd_slow(pgd_t *pgd) @@ -119,19 +125,23 @@ static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm, { unsigned long *ret; + preempt_disable(); if ((ret = (unsigned long *)pte_quicklist) != NULL) { pte_quicklist = (unsigned long *)(*ret); ret[0] = ret[1]; pgtable_cache_size--; } + preempt_enable(); return (pte_t *)ret; } static inline void pte_free_fast(pte_t *pte) { + preempt_disable(); *(unsigned long *)pte = (unsigned long) pte_quicklist; pte_quicklist = (unsigned long *) pte; pgtable_cache_size++; + preempt_enable(); } static __inline__ void pte_free_slow(pte_t *pte) |