[PATCH v3 2/3] mm: vmalloc: Switch to find_unlink_vmap_area() in vm_unmap_ram()

[Uladzislau Rezki (Sony)]

Switch from find_vmap_area() to find_unlink_vmap_area() to prevent
a double access to the vmap_area_lock: one for finding area, second
time is for unlinking from a tree.

Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index eb91ecaa7277..70e5000b9d68 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2252,7 +2252,7 @@ void vm_unmap_ram(const void *mem, unsigned int count)
 		return;
 	}
 
-	va = find_vmap_area(addr);
+	va = find_unlink_vmap_area(addr);
 	BUG_ON(!va);
 	debug_check_no_locks_freed((void *)va->va_start,
 				    (va->va_end - va->va_start));
-- 
2.30.2