slub: Use a constant for a unspecified node.
kmalloc_node() and friends can be passed a constant -1 to indicate
that no choice was made for the node from which the object needs to
come.
Use NUMA_NO_NODE instead of -1.
CC: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
diff --git a/mm/slub.c b/mm/slub.c
index 578f68f..cc0a3c7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1073,7 +1073,7 @@
flags |= __GFP_NOTRACK;
- if (node == -1)
+ if (node == NUMA_NO_NODE)
return alloc_pages(flags, order);
else
return alloc_pages_exact_node(node, flags, order);
@@ -1387,7 +1387,7 @@
static struct page *get_partial(struct kmem_cache *s, gfp_t flags, int node)
{
struct page *page;
- int searchnode = (node == -1) ? numa_node_id() : node;
+ int searchnode = (node == NUMA_NO_NODE) ? numa_node_id() : node;
page = get_partial_node(get_node(s, searchnode));
if (page || (flags & __GFP_THISNODE))
@@ -1515,7 +1515,7 @@
static inline int node_match(struct kmem_cache_cpu *c, int node)
{
#ifdef CONFIG_NUMA
- if (node != -1 && c->node != node)
+ if (node != NUMA_NO_NODE && c->node != node)
return 0;
#endif
return 1;
@@ -1727,7 +1727,7 @@
void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
{
- void *ret = slab_alloc(s, gfpflags, -1, _RET_IP_);
+ void *ret = slab_alloc(s, gfpflags, NUMA_NO_NODE, _RET_IP_);
trace_kmem_cache_alloc(_RET_IP_, ret, s->objsize, s->size, gfpflags);
@@ -1738,7 +1738,7 @@
#ifdef CONFIG_TRACING
void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags)
{
- return slab_alloc(s, gfpflags, -1, _RET_IP_);
+ return slab_alloc(s, gfpflags, NUMA_NO_NODE, _RET_IP_);
}
EXPORT_SYMBOL(kmem_cache_alloc_notrace);
#endif
@@ -2728,7 +2728,7 @@
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- ret = slab_alloc(s, flags, -1, _RET_IP_);
+ ret = slab_alloc(s, flags, NUMA_NO_NODE, _RET_IP_);
trace_kmalloc(_RET_IP_, ret, size, s->size, flags);
@@ -3312,7 +3312,7 @@
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- ret = slab_alloc(s, gfpflags, -1, caller);
+ ret = slab_alloc(s, gfpflags, NUMA_NO_NODE, caller);
/* Honor the call site pointer we recieved. */
trace_kmalloc(caller, ret, size, s->size, gfpflags);