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| author | Ming Lei <tom.leiming@gmail.com> | 2009-07-16 09:44:29 -0400 |
|---|---|---|
| committer | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-07-24 04:49:46 -0400 |
| commit | d588e46155e9c51217b9840db1e94a0f594c1af2 (patch) | |
| tree | 0ede7d7d8338f8db15d8c690c46a0173196d7bac /kernel/hung_task.c | |
| parent | c94aa5ca3088018d2a7a9bd3258aefffe29df265 (diff) | |
lockdep: Improve implementation of BFS
1,replace %MAX_CIRCULAR_QUE_SIZE with &(MAX_CIRCULAR_QUE_SIZE-1)
since we define MAX_CIRCULAR_QUE_SIZE as power of 2;
2,use bitmap to mark if a lock is accessed in BFS in order to
clear it quickly, because we may search a graph many times.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1246201486-7308-3-git-send-email-tom.leiming@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/hung_task.c')
0 files changed, 0 insertions, 0 deletions