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[IA64] Quicklist support for IA64

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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>
This commit is contained in:
Christoph Lameter 2007-05-10 22:42:53 -07:00 • committed by Tony Luck
parent cdc7dbdfe6
commit 2bd62a40f6
5 changed files with 22 additions and 119 deletions
Download patch file Download diff file Expand all files Collapse all files

82
include/asm-ia64/pgalloc.h
View file

@ -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);
}
static inline void check_pgt_cache(void)
{
quicklist_trim(0, NULL, 25, 16);
}
#define __pte_free_tlb(tlb, pte) pte_free(pte)
extern void check_pgt_cache(void);
#endif /* _ASM_IA64_PGALLOC_H */