ocfs2: Use BUG_ON

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/)

// <smpl>
@ 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);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

2 files changed, 2 insertions, 4 deletions

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index a26882144e8f..41f84c92094f 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -1029,8 +1029,7 @@ static void ocfs2_rotate_leaf(struct ocfs2_extent_list *el,
         BUG_ON(!next_free);
 
         /* The tree code before us didn't allow enough room in the leaf. */
-        if (el->l_next_free_rec == el->l_count && !has_empty)
-                BUG();
+        BUG_ON(el->l_next_free_rec == el->l_count && !has_empty);
 
         /*
          * The easiest way to approach this is to just remove the
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index bffd2d714f67..9698338adc39 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -717,8 +717,7 @@ int ocfs2_journal_load(struct ocfs2_journal *journal, int local)
 
         mlog_entry_void();
 
-        if (!journal)
-                BUG();
+        BUG_ON(!journal);
 
         osb = journal->j_osb;