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Subject[PATCH v2 2/3] mm: vmalloc: Switch to find_unlink_vmap_area() in vm_unmap_ram()
Date
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.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
mm/vmalloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 28030d2441f1..17e688cc7357 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2251,7 +2251,7 @@ 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
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