c9e7cf273f ("workqueue: move busy_hash from global_cwq to
worker_pool") incorrectly converted is_chained_work() to use
get_gcwq() inside for_each_gcwq_cpu() while removing get_gcwq().As cwq might not exist for all possible workqueue CPUs, @cwq can be NULL and the following cwq deferences can lead to oops. Fix it by using for_each_cwq_cpu() instead, which is the better one to use anyway as we only need to check pools that the wq is associated with. Signed-off-by: Tejun Heo <[email protected]> --- kernel/workqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1167,7 +1167,7 @@ static bool is_chained_work(struct workq unsigned long flags; unsigned int cpu; - for_each_wq_cpu(cpu) { + for_each_cwq_cpu(cpu, wq) { struct cpu_workqueue_struct *cwq = get_cwq(cpu, wq); struct worker_pool *pool = cwq->pool; struct worker *worker; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
