lockdep: BFS cleanup

Some cleanups of the lockdep code after the BFS series:

 - Remove the last traces of the generation id
 - Fixup comment style
 - Move the bfs routines into lockdep.c
 - Cleanup the bfs routines

[ tom.leiming@gmail.com: Fix crash ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1246201486-7308-11-git-send-email-tom.leiming@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 9ec026f8d09..12aabfcb45f 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -58,7 +58,6 @@ struct lock_class {
 
         struct lockdep_subclass_key     *key;
         unsigned int                    subclass;
-        unsigned int                    dep_gen_id;
 
         /*
          * IRQ/softirq usage tracking bits:
@@ -150,9 +149,9 @@ struct lock_list {
         struct stack_trace              trace;
         int                             distance;
 
-        /*The parent field is used to implement breadth-first search,and
-         *the bit 0 is reused to indicate if the lock has been accessed
-         *in BFS.
+        /*
+         * The parent field is used to implement breadth-first search, and the
+         * bit 0 is reused to indicate if the lock has been accessed in BFS.
          */
         struct lock_list                *parent;
 };