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[PATCH] slab: reduce inlining

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From: Manfred Spraul <manfred@colorfullife.com>

Reduce the amount of inline functions in slab to the functions that
are used in the hot path:

  - no inline for debug functions
  - no __always_inline, inline is already __always_inline
  - remove inline from a few numa support functions.

Before:

   text    data     bss     dec     hex filename
  13588     752      48   14388    3834 mm/slab.o (defconfig)
  16671    2492      48   19211    4b0b mm/slab.o (numa)

After:

   text    data     bss     dec     hex filename
  13366     752      48   14166    3756 mm/slab.o (defconfig)
  16230    2492      48   18770    4952 mm/slab.o (numa)

Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pekka Enberg 2006-02-01 03:05:48 -08:00 committed by Linus Torvalds
parent 78d382d77c
commit 5295a74cc0
1 changed files with 7 additions and 7 deletions
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14
mm/slab.c
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@ -337,7 +337,7 @@ static __always_inline int index_of(const size_t size)
#define INDEX_AC index_of(sizeof(struct arraycache_init)) #define INDEX_AC index_of(sizeof(struct arraycache_init))
#define INDEX_L3 index_of(sizeof(struct kmem_list3)) #define INDEX_L3 index_of(sizeof(struct kmem_list3))
static inline void kmem_list3_init(struct kmem_list3 *parent) static void kmem_list3_init(struct kmem_list3 *parent)
{ {
INIT_LIST_HEAD(&parent->slabs_full); INIT_LIST_HEAD(&parent->slabs_full);
INIT_LIST_HEAD(&parent->slabs_partial); INIT_LIST_HEAD(&parent->slabs_partial);
@ -818,7 +818,7 @@ static struct array_cache *alloc_arraycache(int node, int entries,
#ifdef CONFIG_NUMA #ifdef CONFIG_NUMA
static void *__cache_alloc_node(kmem_cache_t *, gfp_t, int); static void *__cache_alloc_node(kmem_cache_t *, gfp_t, int);
static inline struct array_cache **alloc_alien_cache(int node, int limit) static struct array_cache **alloc_alien_cache(int node, int limit)
{ {
struct array_cache **ac_ptr; struct array_cache **ac_ptr;
int memsize = sizeof(void *) * MAX_NUMNODES; int memsize = sizeof(void *) * MAX_NUMNODES;
@ -845,7 +845,7 @@ static inline struct array_cache **alloc_alien_cache(int node, int limit)
return ac_ptr; return ac_ptr;
} }
static inline void free_alien_cache(struct array_cache **ac_ptr) static void free_alien_cache(struct array_cache **ac_ptr)
{ {
int i; int i;
@ -858,8 +858,8 @@ static inline void free_alien_cache(struct array_cache **ac_ptr)
kfree(ac_ptr); kfree(ac_ptr);
} }
static inline void __drain_alien_cache(kmem_cache_t *cachep, static void __drain_alien_cache(kmem_cache_t *cachep,
struct array_cache *ac, int node) struct array_cache *ac, int node)
{ {
struct kmem_list3 *rl3 = cachep->nodelists[node]; struct kmem_list3 *rl3 = cachep->nodelists[node];
@ -1534,7 +1534,7 @@ static void slab_destroy(kmem_cache_t *cachep, struct slab *slabp)
/* For setting up all the kmem_list3s for cache whose buffer_size is same /* For setting up all the kmem_list3s for cache whose buffer_size is same
as size of kmem_list3. */ as size of kmem_list3. */
static inline void set_up_list3s(kmem_cache_t *cachep, int index) static void set_up_list3s(kmem_cache_t *cachep, int index)
{ {
int node; int node;
@ -1937,7 +1937,7 @@ static void check_spinlock_acquired(kmem_cache_t *cachep)
#endif #endif
} }
static inline void check_spinlock_acquired_node(kmem_cache_t *cachep, int node) static void check_spinlock_acquired_node(kmem_cache_t *cachep, int node)
{ {
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
check_irq_off(); check_irq_off();