[SPARC64]: Kill pgtable quicklists and use SLAB.
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>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 936ae1a..7c456af 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -141,26 +141,25 @@
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 @@
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)