diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-02-15 14:45:54 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-02-16 15:13:59 +0100 |
| commit | 0970d2992dfd7d5ec2c787417cf464f01eeaf42a (patch) | |
| tree | 5f0077dcafda733ef3f1e41d218a473978ce6a9f /fs/xfs/linux-2.6/xfs_ioctl32.c | |
| parent | 9000f05c6d1607f79c0deacf42b09693be673f4c (diff) | |
sched: Fix race between ttwu() and task_rq_lock()
Thomas found that due to ttwu() changing a task's cpu without holding
the rq->lock, task_rq_lock() might end up locking the wrong rq.
Avoid this by serializing against TASK_WAKING.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1266241712.15770.420.camel@laptop>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c')
0 files changed, 0 insertions, 0 deletions