FRV: Replace pgd management via slabs through quicklists

This is done in order to be able to run SLUB which expects no modifications
to its page structs.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 11 insertions, 11 deletions

diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c
index 598a26ab8ad8..7787c3cc52c6 100644
--- a/arch/frv/mm/pgalloc.c
+++ b/arch/frv/mm/pgalloc.c
@@ -13,12 +13,12 @@
 #include <linux/slab.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
+#include <linux/quicklist.h>
 #include <asm/pgalloc.h>
 #include <asm/page.h>
 #include <asm/cacheflush.h>
 
 pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((aligned(PAGE_SIZE)));
-struct kmem_cache *pgd_cache;
 
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
@@ -100,7 +100,7 @@ static inline void pgd_list_del(pgd_t *pgd)
                 set_page_private(next, (unsigned long) pprev);
 }
 
-void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused)
+void pgd_ctor(void *pgd)
 {
         unsigned long flags;
 
@@ -120,7 +120,7 @@ void pgd_ctor(void *pgd, struct kmem_cache *cache, unsigned long unused)
 }
 
 /* never called when PTRS_PER_PMD > 1 */
-void pgd_dtor(void *pgd, struct kmem_cache *cache, unsigned long unused)
+void pgd_dtor(void *pgd)
 {
         unsigned long flags; /* can be called from interrupt context */
 
@@ -133,7 +133,7 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 {
         pgd_t *pgd;
 
-        pgd = kmem_cache_alloc(pgd_cache, GFP_KERNEL);
+        pgd = quicklist_alloc(0, GFP_KERNEL, pgd_ctor);
         if (!pgd)
                 return pgd;
 
@@ -143,15 +143,15 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 void pgd_free(pgd_t *pgd)
 {
         /* in the non-PAE case, clear_page_tables() clears user pgd entries */
-        kmem_cache_free(pgd_cache, pgd);
+        quicklist_free(0, pgd_dtor, pgd);
 }
 
 void __init pgtable_cache_init(void)
 {
-        pgd_cache = kmem_cache_create("pgd",
-                                      PTRS_PER_PGD * sizeof(pgd_t),
-                                      PTRS_PER_PGD * sizeof(pgd_t),
-                                      SLAB_PANIC,
-                                      pgd_ctor,
-                                      pgd_dtor);
 }
+
+void check_pgt_cache(void)
+{
+        quicklist_trim(0, pgd_dtor, 25, 16);
+}
+