SLUB: add some more inlines and #ifdef CONFIG_SLUB_DEBUG

Add #ifdefs around data structures only needed if debugging is compiled into
SLUB.

Add inlines to small functions to reduce code size.

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>

2 files changed, 11 insertions, 6 deletions

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 579b0a22858e..bae11111458f 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -16,7 +16,9 @@ struct kmem_cache_node {
         unsigned long nr_partial;
         atomic_long_t nr_slabs;
         struct list_head partial;
+#ifdef CONFIG_SLUB_DEBUG
         struct list_head full;
+#endif
 };
 
 /*
@@ -44,7 +46,9 @@ struct kmem_cache {
         int align;              /* Alignment */
         const char *name;       /* Name (only for display!) */
         struct list_head list;  /* List of slab caches */
+#ifdef CONFIG_SLUB_DEBUG
         struct kobject kobj;    /* For sysfs */
+#endif
 
 #ifdef CONFIG_NUMA
         int defrag_ratio;
diff --git a/mm/slub.c b/mm/slub.c
index 479eb5c01917..55b508df62a3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -252,9 +252,10 @@ static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
 static void sysfs_slab_remove(struct kmem_cache *);
 #else
-static int sysfs_slab_add(struct kmem_cache *s) { return 0; }
-static int sysfs_slab_alias(struct kmem_cache *s, const char *p) { return 0; }
-static void sysfs_slab_remove(struct kmem_cache *s) {}
+static inline int sysfs_slab_add(struct kmem_cache *s) { return 0; }
+static inline int sysfs_slab_alias(struct kmem_cache *s, const char *p)
+                                                        { return 0; }
+static inline void sysfs_slab_remove(struct kmem_cache *s) {}
 #endif
 
 /********************************************************************
@@ -1395,7 +1396,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page, int cpu)
         unfreeze_slab(s, page);
 }
 
-static void flush_slab(struct kmem_cache *s, struct page *page, int cpu)
+static inline void flush_slab(struct kmem_cache *s, struct page *page, int cpu)
 {
         slab_lock(page);
         deactivate_slab(s, page, cpu);
@@ -1405,7 +1406,7 @@ static void flush_slab(struct kmem_cache *s, struct page *page, int cpu)
  * Flush cpu slab.
  * Called from IPI handler with interrupts disabled.
  */
-static void __flush_cpu_slab(struct kmem_cache *s, int cpu)
+static inline void __flush_cpu_slab(struct kmem_cache *s, int cpu)
 {
         struct page *page = s->cpu_slab[cpu];
 
@@ -2165,7 +2166,7 @@ static int free_list(struct kmem_cache *s, struct kmem_cache_node *n,
 /*
  * Release all resources used by a slab cache.
  */
-static int kmem_cache_close(struct kmem_cache *s)
+static inline int kmem_cache_close(struct kmem_cache *s)
 {
         int node;