commit bdd5b29c6bc835dab71148afd5952f9cd278eef1
author Jan Kara <jack@suse.cz> Thu Jun 23 22:01:37 2005 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> Fri Jun 24 00:05:23 2005 -0700
tree b184956460a06c3d07e7eca726459f53232db21d
parent 7282bee78798294bb1f0211a842cdb9f4872db3d

[PATCH] Make reiserfs BUG on too big transaction

Make reiserfs BUG() when somebody tries to start a larger transaction than
it's allowed (currently the code just silently deadlocks).

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/reiserfs/journal.c

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 3072cfd..7b87707 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2631,6 +2631,8 @@
   int retval;
 
   reiserfs_check_lock_depth(p_s_sb, "journal_begin") ;
+  if (nblocks > journal->j_trans_max)
+	BUG();
 
   PROC_INFO_INC( p_s_sb, journal.journal_being );
   /* set here for journal_join */