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mm/slab: factor out slab list fixup code

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Slab list should be fixed up after object is detached from the slab and
this happens at two places.  They do exactly same thing.  They will be
changed in the following patch, so, to reduce code duplication, this
patch factor out them and make it common function.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joonsoo Kim 2016-03-15 14:54:44 -07:00 committed by Linus Torvalds
parent 3217fd9bdf
commit d8410234db
1 changed files with 13 additions and 12 deletions
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25
mm/slab.c
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@ -2723,6 +2723,17 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
#define cache_free_debugcheck(x,objp,z) (objp)
#endif
static inline void fixup_slab_list(struct kmem_cache *cachep,
struct kmem_cache_node *n, struct page *page)
{
/* move slabp to correct slabp list: */
list_del(&page->lru);
if (page->active == cachep->num)
list_add(&page->lru, &n->slabs_full);
else
list_add(&page->lru, &n->slabs_partial);
}
static struct page *get_first_slab(struct kmem_cache_node *n)
{
struct page *page;
@ -2796,12 +2807,7 @@ retry:
ac_put_obj(cachep, ac, slab_get_obj(cachep, page));
}
/* move slabp to correct slabp list: */
list_del(&page->lru);
if (page->active == cachep->num)
list_add(&page->lru, &n->slabs_full);
else
list_add(&page->lru, &n->slabs_partial);
fixup_slab_list(cachep, n, page);
}
must_grow:
@ -3067,13 +3073,8 @@ retry:
obj = slab_get_obj(cachep, page);
n->free_objects--;
/* move slabp to correct slabp list: */
list_del(&page->lru);
if (page->active == cachep->num)
list_add(&page->lru, &n->slabs_full);
else
list_add(&page->lru, &n->slabs_partial);
fixup_slab_list(cachep, n, page);
spin_unlock(&n->list_lock);
goto done;