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authorKumar Gala <galak@kernel.crashing.org>2008-11-19 15:50:04 +0300
committerPaul Mackerras <paulus@samba.org>2008-12-03 12:46:35 +0300
commit0186f47e703fb7aa14b54459d642ef5374b3a685 (patch)
tree5af0bc2bf92b9ef7edf79aab989387de4d8ffaaf /arch/powerpc/include/asm/pgalloc-64.h
parentdf3b8611554e389e703fa753540289874fa5126c (diff)
downloadlinux-0186f47e703fb7aa14b54459d642ef5374b3a685.tar.xz
powerpc: Use RCU based pte freeing mechanism for all powerpc
Refactor the RCU based pte free code that was used on ppc64 to be used on all powerpc. Additionally refactor pte_free() & pte_free_kernel() into common code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/pgalloc-64.h')
-rw-r--r--arch/powerpc/include/asm/pgalloc-64.h34
1 files changed, 0 insertions, 34 deletions
diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 812a1d8f35cb..afda2bdd860f 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -7,7 +7,6 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/cpumask.h>
#include <linux/percpu.h>
@@ -108,31 +107,6 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
return page;
}
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
-{
- pgtable_page_dtor(ptepage);
- __free_page(ptepage);
-}
-
-#define PGF_CACHENUM_MASK 0x7
-
-typedef struct pgtable_free {
- unsigned long val;
-} pgtable_free_t;
-
-static inline pgtable_free_t pgtable_free_cache(void *p, int cachenum,
- unsigned long mask)
-{
- BUG_ON(cachenum > PGF_CACHENUM_MASK);
-
- return (pgtable_free_t){.val = ((unsigned long) p & ~mask) | cachenum};
-}
-
static inline void pgtable_free(pgtable_free_t pgf)
{
void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK);
@@ -144,14 +118,6 @@ static inline void pgtable_free(pgtable_free_t pgf)
kmem_cache_free(pgtable_cache[cachenum], p);
}
-extern void pgtable_free_tlb(struct mmu_gather *tlb, pgtable_free_t pgf);
-
-#define __pte_free_tlb(tlb,ptepage) \
-do { \
- pgtable_page_dtor(ptepage); \
- pgtable_free_tlb(tlb, pgtable_free_cache(page_address(ptepage), \
- PTE_NONCACHE_NUM, PTE_TABLE_SIZE-1)); \
-} while (0)
#define __pmd_free_tlb(tlb, pmd) \
pgtable_free_tlb(tlb, pgtable_free_cache(pmd, \
PMD_CACHE_NUM, PMD_TABLE_SIZE-1))