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authorChristoph Lameter2007-05-11 07:42:53 +0200
committerTony Luck2007-05-11 18:40:00 +0200
commit2bd62a40f63bd628c43a2f3637b252d0967659b0 (patch)
tree73b5dbda741421812f487ff0a9b753109fb105b4 /include/asm-ia64/pgalloc.h
parent[IA64] fix Kprobes reentrancy (diff)
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[IA64] Quicklist support for IA64
IA64 is the origin of the quicklist implementation. So cut out the pieces that are now in core code and modify the functions called. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/pgalloc.h')
-rw-r--r--include/asm-ia64/pgalloc.h82
1 files changed, 16 insertions, 66 deletions
diff --git a/include/asm-ia64/pgalloc.h b/include/asm-ia64/pgalloc.h
index 560c287b1233..67552cad5173 100644
--- a/include/asm-ia64/pgalloc.h
+++ b/include/asm-ia64/pgalloc.h
@@ -18,71 +18,18 @@
#include <linux/mm.h>
#include <linux/page-flags.h>
#include <linux/threads.h>
+#include <linux/quicklist.h>
#include <asm/mmu_context.h>
-DECLARE_PER_CPU(unsigned long *, __pgtable_quicklist);
-#define pgtable_quicklist __ia64_per_cpu_var(__pgtable_quicklist)
-DECLARE_PER_CPU(long, __pgtable_quicklist_size);
-#define pgtable_quicklist_size __ia64_per_cpu_var(__pgtable_quicklist_size)
-
-static inline long pgtable_quicklist_total_size(void)
-{
- long ql_size = 0;
- int cpuid;
-
- for_each_online_cpu(cpuid) {
- ql_size += per_cpu(__pgtable_quicklist_size, cpuid);
- }
- return ql_size;
-}
-
-static inline void *pgtable_quicklist_alloc(void)
-{
- unsigned long *ret = NULL;
-
- preempt_disable();
-
- ret = pgtable_quicklist;
- if (likely(ret != NULL)) {
- pgtable_quicklist = (unsigned long *)(*ret);
- ret[0] = 0;
- --pgtable_quicklist_size;
- preempt_enable();
- } else {
- preempt_enable();
- ret = (unsigned long *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
- }
-
- return ret;
-}
-
-static inline void pgtable_quicklist_free(void *pgtable_entry)
-{
-#ifdef CONFIG_NUMA
- int nid = page_to_nid(virt_to_page(pgtable_entry));
-
- if (unlikely(nid != numa_node_id())) {
- free_page((unsigned long)pgtable_entry);
- return;
- }
-#endif
-
- preempt_disable();
- *(unsigned long *)pgtable_entry = (unsigned long)pgtable_quicklist;
- pgtable_quicklist = (unsigned long *)pgtable_entry;
- ++pgtable_quicklist_size;
- preempt_enable();
-}
-
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pgd_free(pgd_t * pgd)
{
- pgtable_quicklist_free(pgd);
+ quicklist_free(0, NULL, pgd);
}
#ifdef CONFIG_PGTABLE_4
@@ -94,12 +41,12 @@ pgd_populate(struct mm_struct *mm, pgd_t * pgd_entry, pud_t * pud)
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pud_free(pud_t * pud)
{
- pgtable_quicklist_free(pud);
+ quicklist_free(0, NULL, pud);
}
#define __pud_free_tlb(tlb, pud) pud_free(pud)
#endif /* CONFIG_PGTABLE_4 */
@@ -112,12 +59,12 @@ pud_populate(struct mm_struct *mm, pud_t * pud_entry, pmd_t * pmd)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pmd_free(pmd_t * pmd)
{
- pgtable_quicklist_free(pmd);
+ quicklist_free(0, NULL, pmd);
}
#define __pmd_free_tlb(tlb, pmd) pmd_free(pmd)
@@ -137,28 +84,31 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long addr)
{
- void *pg = pgtable_quicklist_alloc();
+ void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
return pg ? virt_to_page(pg) : NULL;
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long addr)
{
- return pgtable_quicklist_alloc();
+ return quicklist_alloc(0, GFP_KERNEL, NULL);
}
static inline void pte_free(struct page *pte)
{
- pgtable_quicklist_free(page_address(pte));
+ quicklist_free_page(0, NULL, pte);
}
static inline void pte_free_kernel(pte_t * pte)
{
- pgtable_quicklist_free(pte);
+ quicklist_free(0, NULL, pte);
}
-#define __pte_free_tlb(tlb, pte) pte_free(pte)
+static inline void check_pgt_cache(void)
+{
+ quicklist_trim(0, NULL, 25, 16);
+}
-extern void check_pgt_cache(void);
+#define __pte_free_tlb(tlb, pte) pte_free(pte)
#endif /* _ASM_IA64_PGALLOC_H */