ext4: Use BUG_ON() instead of BUG() From: Julia Lawall if (...) BUG(); should be replaced with BUG_ON(...) when the test has no side-effects to allow a definition of BUG_ON that drops the code completely. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // @ disable unlikely @ expression E,f; @@ ( if (<... f(...) ...>) { BUG(); } | - if (unlikely(E)) { BUG(); } + BUG_ON(E); ) @@ expression E,f; @@ ( if (<... f(...) ...>) { BUG(); } | - if (E) { BUG(); } + BUG_ON(E); ) // Signed-off-by: Julia Lawall Signed-off-by: Andrew Morton Signed-off-by: "Theodore Ts'o" --- fs/ext4/balloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) Index: linux-2.6.26-rc9/fs/ext4/balloc.c =================================================================== --- linux-2.6.26-rc9.orig/fs/ext4/balloc.c 2008-07-11 16:04:31.000000000 -0700 +++ linux-2.6.26-rc9/fs/ext4/balloc.c 2008-07-11 16:04:57.000000000 -0700 @@ -409,8 +409,7 @@ restart: prev = rsv; } printk("Window map complete.\n"); - if (bad) - BUG(); + BUG_ON(bad); } #define rsv_window_dump(root, verbose) \ __rsv_window_dump((root), (verbose), __func__)