Use default pwq when alloc_unbound_pwq() is failed.
And remove "if" condition for whether "pwq" is same as "wq->dfl_pwq"
when wq_calc_node_cpumask() returns false and just use "goto use_dfl_pwq"
Signed-off-by: Daeseok Youn <daeseok.y...@gmail.com>
---
V2: replace "if condition" with "goto" as Lai's comment.
V3: Use default pwq when alloc_unbound_pwq() is failed.
kernel/workqueue.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 0ee63af..0679854 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4087,10 +4087,7 @@ static void wq_update_unbound_numa(struct
workqueue_struct *wq, int cpu,
if (cpumask_equal(cpumask, pwq->pool->attrs->cpumask))
goto out_unlock;
} else {
- if (pwq == wq->dfl_pwq)
- goto out_unlock;
- else
- goto use_dfl_pwq;
+ goto use_dfl_pwq;
}
mutex_unlock(&wq->mutex);
@@ -4100,7 +4097,8 @@ static void wq_update_unbound_numa(struct
workqueue_struct *wq, int cpu,
if (!pwq) {
pr_warning("workqueue: allocation failed while updating NUMA
affinity of \"%s\"\n",
wq->name);
- goto out_unlock;
+ mutex_lock(&wq->mutex);
+ goto use_dfl_pwq;
}
/*
--
1.7.4.4
--
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