Quicklist support for sparc64

I ported this to sparc64 as per the patch below, tested on UP SunBlade1500 and
24 cpu Niagara T1000.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Andi Kleen <ak@suse.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index be9e10b..ad8d6b2 100644 (file)
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -34,6 +34,10 @@ config MMU
        bool
        default y
 
+config QUICKLIST
+       bool
+       default y
+
 config STACKTRACE_SUPPORT
        bool
        default y

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index cafadcb..d7004ea 100644 (file)
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -164,30 +164,6 @@ unsigned long sparc64_kern_sec_context __read_mostly;
 
 int bigkernel = 0;
 
-struct kmem_cache *pgtable_cache __read_mostly;
-
-static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
-{
-       clear_page(addr);
-}
-
-extern void tsb_cache_init(void);
-
-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("Could not create pgtable_cache\n");
-               prom_halt();
-       }
-       tsb_cache_init();
-}
-
 #ifdef CONFIG_DEBUG_DCFLUSH
 atomic_t dcpage_flushes = ATOMIC_INIT(0);
 #ifdef CONFIG_SMP

diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c
index 236d02f..57eb302 100644 (file)
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -252,7 +252,7 @@ static const char *tsb_cache_names[8] = {
        "tsb_1MB",
 };
 
-void __init tsb_cache_init(void)
+void __init pgtable_cache_init(void)
 {
        unsigned long i;
 

diff --git a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h
index 5891ff7..5d66b85 100644 (file)
--- a/include/asm-sparc64/pgalloc.h
+++ b/include/asm-sparc64/pgalloc.h
@@ -6,6 +6,7 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/quicklist.h>
 
 #include <asm/spitfire.h>
 #include <asm/cpudata.h>
@@ -13,52 +14,50 @@
 #include <asm/page.h>
 
 /* Page table allocation/freeing. */
-extern struct kmem_cache *pgtable_cache;
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-       return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
+       return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
 
 static inline void pgd_free(pgd_t *pgd)
 {
-       kmem_cache_free(pgtable_cache, pgd);
+       quicklist_free(0, NULL, pgd);
 }
 
 #define pud_populate(MM, PUD, PMD)     pud_set(PUD, PMD)
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-       return kmem_cache_alloc(pgtable_cache,
-                               GFP_KERNEL|__GFP_REPEAT);
+       return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
 
 static inline void pmd_free(pmd_t *pmd)
 {
-       kmem_cache_free(pgtable_cache, pmd);
+       quicklist_free(0, NULL, pmd);
 }
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       return kmem_cache_alloc(pgtable_cache,
-                               GFP_KERNEL|__GFP_REPEAT);
+       return quicklist_alloc(0, GFP_KERNEL, NULL);
 }
 
 static inline struct page *pte_alloc_one(struct mm_struct *mm,
                                         unsigned long address)
 {
-       return virt_to_page(pte_alloc_one_kernel(mm, address));
+       void *pg = quicklist_alloc(0, GFP_KERNEL, NULL);
+       return pg ? virt_to_page(pg) : NULL;
 }
                
 static inline void pte_free_kernel(pte_t *pte)
 {
-       kmem_cache_free(pgtable_cache, pte);
+       quicklist_free(0, NULL, pte);
 }
 
 static inline void pte_free(struct page *ptepage)
 {
-       pte_free_kernel(page_address(ptepage));
+       quicklist_free_page(0, NULL, ptepage);
 }
 
 
@@ -66,6 +65,9 @@ static inline void pte_free(struct page *ptepage)
 #define pmd_populate(MM,PMD,PTE_PAGE)          \
        pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE))
 
-#define check_pgt_cache()      do { } while (0)
+static inline void check_pgt_cache(void)
+{
+       quicklist_trim(0, NULL, 25, 16);
+}
 
 #endif /* _SPARC64_PGALLOC_H */