From: Matthew Dobson Create a helper function, slab_destroy_objs() which called from slab_destroy(). This makes slab_destroy() smaller and more readable, and moves ifdefs outside the function body. Signed-off-by: Matthew Dobson Acked-by: Manfred Spraul Signed-off-by: Pekka Enberg Signed-off-by: Andrew Morton --- mm/slab.c | 26 +++++++++++++++++++------- 1 files changed, 19 insertions(+), 7 deletions(-) diff -puN mm/slab.c~slab-extract-slab_destroy_objs mm/slab.c --- devel/mm/slab.c~slab-extract-slab_destroy_objs 2006-01-15 18:40:04.000000000 -0800 +++ devel-akpm/mm/slab.c 2006-01-15 18:40:04.000000000 -0800 @@ -1459,15 +1459,13 @@ static void check_poison_obj(kmem_cache_ } #endif -/* Destroy all the objs in a slab, and release the mem back to the system. - * Before calling the slab must have been unlinked from the cache. - * The cache-lock is not held/needed. +#if DEBUG +/** + * slab_destroy_objs - call the registered destructor for each object in + * a slab that is to be destroyed. */ -static void slab_destroy(kmem_cache_t *cachep, struct slab *slabp) +static void slab_destroy_objs(kmem_cache_t *cachep, struct slab *slabp) { - void *addr = slabp->s_mem - slabp->colouroff; - -#if DEBUG int i; for (i = 0; i < cachep->num; i++) { void *objp = slabp->s_mem + cachep->buffer_size * i; @@ -1496,7 +1494,10 @@ static void slab_destroy(kmem_cache_t *c if (cachep->dtor && !(cachep->flags & SLAB_POISON)) (cachep->dtor) (objp + obj_offset(cachep), cachep, 0); } +} #else +static void slab_destroy_objs(kmem_cache_t *cachep, struct slab *slabp) +{ if (cachep->dtor) { int i; for (i = 0; i < cachep->num; i++) { @@ -1504,8 +1505,19 @@ static void slab_destroy(kmem_cache_t *c (cachep->dtor) (objp, cachep, 0); } } +} #endif +/** + * Destroy all the objs in a slab, and release the mem back to the system. + * Before calling the slab must have been unlinked from the cache. + * The cache-lock is not held/needed. + */ +static void slab_destroy(kmem_cache_t *cachep, struct slab *slabp) +{ + void *addr = slabp->s_mem - slabp->colouroff; + + slab_destroy_objs(cachep, slabp); if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) { struct slab_rcu *slab_rcu; _