Messages in this thread Patch in this message | | | Date | Sun, 17 Feb 2008 18:55:49 +0100 (CET) | From | Julia Lawall <> | Subject | [PATCH 3/7] fs/ocfs2: Use BUG_ON |
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From: Julia Lawall <julia@diku.dk>
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>
---
diff -u -p a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c --- a/fs/ocfs2/alloc.c 2008-02-05 20:56:02.000000000 +0100 +++ b/fs/ocfs2/alloc.c 2008-02-17 16:40:41.000000000 +0100 @@ -1029,8 +1029,7 @@ static void ocfs2_rotate_leaf(struct ocf 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 -u -p a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c --- a/fs/ocfs2/journal.c 2008-02-02 16:09:08.000000000 +0100 +++ b/fs/ocfs2/journal.c 2008-02-17 16:40:59.000000000 +0100 @@ -586,8 +586,7 @@ int ocfs2_journal_load(struct ocfs2_jour mlog_entry_void(); - if (!journal) - BUG(); + BUG_ON(!journal); osb = journal->j_osb;
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