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-rw-r--r--arch/s390/numa/toptree.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/s390/numa/toptree.c b/arch/s390/numa/toptree.c
index 902d350d859a..26f622b1cd11 100644
--- a/arch/s390/numa/toptree.c
+++ b/arch/s390/numa/toptree.c
@@ -7,6 +7,7 @@
*/
#include <linux/kernel.h>
+#include <linux/bootmem.h>
#include <linux/cpumask.h>
#include <linux/list.h>
#include <linux/list_sort.h>
@@ -25,10 +26,14 @@
* RETURNS:
* Pointer to the new tree node or NULL on error
*/
-struct toptree *toptree_alloc(int level, int id)
+struct toptree __ref *toptree_alloc(int level, int id)
{
- struct toptree *res = kzalloc(sizeof(struct toptree), GFP_KERNEL);
+ struct toptree *res;
+ if (slab_is_available())
+ res = kzalloc(sizeof(*res), GFP_KERNEL);
+ else
+ res = memblock_virt_alloc(sizeof(*res), 8);
if (!res)
return res;
@@ -65,7 +70,7 @@ static void toptree_remove(struct toptree *cand)
* cleanly using toptree_remove. Possible children are freed
* recursively. In the end @cand itself is freed.
*/
-void toptree_free(struct toptree *cand)
+void __ref toptree_free(struct toptree *cand)
{
struct toptree *child, *tmp;
@@ -73,7 +78,10 @@ void toptree_free(struct toptree *cand)
toptree_remove(cand);
toptree_for_each_child_safe(child, tmp, cand)
toptree_free(child);
- kfree(cand);
+ if (slab_is_available())
+ kfree(cand);
+ else
+ memblock_free_early((unsigned long)cand, sizeof(*cand));
}
/**
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