Factor out initialization of array cache to use it in following patch.
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
diff --git a/mm/slab.c b/mm/slab.c
index 7647728..755fb57 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -741,13 +741,8 @@ static void start_cpu_timer(int cpu)
}
}
-static struct array_cache *alloc_arraycache(int node, int entries,
- int batchcount, gfp_t gfp)
+static void init_arraycache(struct array_cache *ac, int limit, int batch)
{
- int memsize = sizeof(void *) * entries + sizeof(struct array_cache);
- struct array_cache *nc = NULL;
-
- nc = kmalloc_node(memsize, gfp, node);
/*
* The array_cache structures contain pointers to free object.
* However, when such objects are allocated or transferred to another
@@ -755,15 +750,25 @@ static struct array_cache *alloc_arraycache(int node, int entries,
* valid references during a kmemleak scan. Therefore, kmemleak must
* not scan such objects.
*/
- kmemleak_no_scan(nc);
- if (nc) {
- nc->avail = 0;
- nc->limit = entries;
- nc->batchcount = batchcount;
- nc->touched = 0;
- spin_lock_init(&nc->lock);
+ kmemleak_no_scan(ac);
+ if (ac) {
+ ac->avail = 0;
+ ac->limit = limit;
+ ac->batchcount = batch;
+ ac->touched = 0;
+ spin_lock_init(&ac->lock);
}
- return nc;
+}
+
+static struct array_cache *alloc_arraycache(int node, int entries,
+ int batchcount, gfp_t gfp)
+{
+ int memsize = sizeof(void *) * entries + sizeof(struct array_cache);
+ struct array_cache *ac = NULL;
+
+ ac = kmalloc_node(memsize, gfp, node);
+ init_arraycache(ac, entries, batchcount);
+ return ac;
}
static inline bool is_slab_pfmemalloc(struct page *page)
--
1.7.9.5
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