avr32: Use a quicklist for PTE allocation as well
Using a quicklist to allocate PTEs might be slightly faster than using the page allocator directly since we might avoid zeroing the page after each allocation. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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@ -13,6 +13,7 @@
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#include <asm/pgtable.h>
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#define QUICK_PGD 0 /* Preserve kernel mappings over free */
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#define QUICK_PT 1 /* Zero on free */
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static inline void pmd_populate_kernel(struct mm_struct *mm,
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pmd_t *pmd, pte_t *pte)
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@ -52,34 +53,34 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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unsigned long address)
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{
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pte_t *pte;
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pte = (pte_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
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return pte;
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return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
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}
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static inline struct page *pte_alloc_one(struct mm_struct *mm,
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static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
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unsigned long address)
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{
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struct page *pte;
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struct page *page;
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void *pg;
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pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
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if (!pte)
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pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
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if (!pg)
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return NULL;
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pgtable_page_ctor(pte);
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return pte;
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page = virt_to_page(pg);
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pgtable_page_ctor(page);
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return page;
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}
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static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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{
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free_page((unsigned long)pte);
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quicklist_free(QUICK_PT, NULL, pte);
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}
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static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
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{
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pgtable_page_dtor(pte);
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__free_page(pte);
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quicklist_free_page(QUICK_PT, NULL, pte);
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}
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#define __pte_free_tlb(tlb,pte) \
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@ -91,6 +92,7 @@ do { \
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static inline void check_pgt_cache(void)
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{
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quicklist_trim(QUICK_PGD, NULL, 25, 16);
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quicklist_trim(QUICK_PT, NULL, 25, 16);
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}
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#endif /* __ASM_AVR32_PGALLOC_H */
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@ -199,7 +199,7 @@ config BOUNCE
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config NR_QUICK
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int
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depends on QUICKLIST
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default "2" if SUPERH
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default "2" if SUPERH || AVR32
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default "1"
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config VIRT_TO_BUS
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