[PATCH] mm/zsmalloc: Use BUG_ON instead of if condition followed by BUG.

[zhouchuangao]

It can be optimized at compile time.

Signed-off-by: zhouchuangao <zhouchuan...@vivo.com>
---
 mm/zsmalloc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 30c358b..58697f7 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1987,8 +1987,7 @@ static int zs_page_migrate(struct address_space *mapping, 
struct page *newpage,
                head = obj_to_head(page, addr);
                if (head & OBJ_ALLOCATED_TAG) {
                        handle = head & ~OBJ_ALLOCATED_TAG;
-                       if (!testpin_tag(handle))
-                               BUG();
+                       BUG_ON(!testpin_tag(handle));
 
                        old_obj = handle_to_obj(handle);
                        obj_to_location(old_obj, &dummy, &obj_idx);
@@ -2035,8 +2034,7 @@ static int zs_page_migrate(struct address_space *mapping, 
struct page *newpage,
                head = obj_to_head(page, addr);
                if (head & OBJ_ALLOCATED_TAG) {
                        handle = head & ~OBJ_ALLOCATED_TAG;
-                       if (!testpin_tag(handle))
-                               BUG();
+                       BUG_ON(!testpin_tag(handle));
                        unpin_tag(handle);
                }
        }
-- 
2.7.4