SLUB: consolidate trace code

Trace in both slab_alloc and slab_free has a lot of common code.  Use a single
function for both.

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

diff --git a/mm/slub.c b/mm/slub.c
index c58a974..dfbd0d8 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -805,6 +805,22 @@ fail:
        return 0;
 }
 
+static void trace(struct kmem_cache *s, struct page *page, void *object, int alloc)
+{
+       if (s->flags & SLAB_TRACE) {
+               printk(KERN_INFO "TRACE %s %s 0x%p inuse=%d fp=0x%p\n",
+                       s->name,
+                       alloc ? "alloc" : "free",
+                       object, page->inuse,
+                       page->freelist);
+
+               if (!alloc)
+                       print_section("Object", (void *)object, s->objsize);
+
+               dump_stack();
+       }
+}
+
 /*
  * Slab allocation and freeing
  */
@@ -1289,12 +1305,7 @@ debug:
                goto another_slab;
        if (s->flags & SLAB_STORE_USER)
                set_track(s, object, TRACK_ALLOC, addr);
-       if (s->flags & SLAB_TRACE) {
-               printk(KERN_INFO "TRACE %s alloc 0x%p inuse=%d fp=0x%p\n",
-                       s->name, object, page->inuse,
-                       page->freelist);
-               dump_stack();
-       }
+       trace(s, page, object, 1);
        init_object(s, object, 1);
        goto have_object;
 }
@@ -1379,13 +1390,7 @@ debug:
                remove_full(s, page);
        if (s->flags & SLAB_STORE_USER)
                set_track(s, x, TRACK_FREE, addr);
-       if (s->flags & SLAB_TRACE) {
-               printk(KERN_INFO "TRACE %s free 0x%p inuse=%d fp=0x%p\n",
-                       s->name, object, page->inuse,
-                       page->freelist);
-               print_section("Object", (void *)object, s->objsize);
-               dump_stack();
-       }
+       trace(s, page, object, 0);
        init_object(s, object, 0);
        goto checks_ok;
 }