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[SPARC64]: Kill pgtable quicklists and use SLAB.

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Taking a nod from the powerpc port.

With the per-cpu caching of both the page allocator and SLAB, the
pgtable quicklist scheme becomes relatively silly and primitive.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-01-31 18:30:27 -08:00
committed by David S. Miller
parent 05e28f9de6
commit 3c93646524
5 changed files with 48 additions and 170 deletions
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34
arch/sparc64/mm/init.c
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@@ -141,26 +141,25 @@ unsigned long sparc64_kern_sec_context __read_mostly;
int bigkernel = 0;
/* XXX Tune this... */
#define PGT_CACHE_LOW 25
#define PGT_CACHE_HIGH 50
kmem_cache_t *pgtable_cache __read_mostly;
#ifndef CONFIG_SMP
struct pgtable_cache_struct pgt_quicklists;
#endif
void check_pgt_cache(void)
static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
{
preempt_disable();
if (pgtable_cache_size > PGT_CACHE_HIGH) {
do {
if (pgd_quicklist)
free_pgd_slow(get_pgd_fast());
if (pte_quicklist)
free_pte_slow(pte_alloc_one_fast());
} while (pgtable_cache_size > PGT_CACHE_LOW);
clear_page(addr);
}
void pgtable_cache_init(void)
{
pgtable_cache = kmem_cache_create("pgtable_cache",
PAGE_SIZE, PAGE_SIZE,
SLAB_HWCACHE_ALIGN |
SLAB_MUST_HWCACHE_ALIGN,
zero_ctor,
NULL);
if (!pgtable_cache) {
prom_printf("pgtable_cache_init(): Could not create!\n");
prom_halt();
}
preempt_enable();
}
#ifdef CONFIG_DEBUG_DCFLUSH
@@ -340,7 +339,6 @@ void show_mem(void)
nr_swap_pages << (PAGE_SHIFT-10));
printk("%ld pages of RAM\n", num_physpages);
printk("%d free pages\n", nr_free_pages());
printk("%d pages in page table cache\n",pgtable_cache_size);
}
void mmu_info(struct seq_file *m)