From: Liu Song <liu.song11@xxxxxxxxxx>
If overflow, should ensure that "free_vmap_cache" is set to NULL,
so as to ensure that it can be traversed from the beginning.
Signed-off-by: Liu Song <liu.song11@xxxxxxxxxx>
---
mm/vmalloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index d8e877365f9f..2638a20d36ce 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -441,7 +441,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
if (!free_vmap_cache ||
size < cached_hole_size ||
vstart < cached_vstart ||
- align < cached_align) {
+ align < cached_align || purged) {
nocache:
cached_hole_size = 0;
free_vmap_cache = NULL;
--
2.20.1
