Hi Paul,
Today's linux-next merge of the rcu tree got a conflict in
kernel/rcutree.h between commit 62ab7072476a ("rcu: Use
smp_hotplug_thread facility for RCUs per-CPU kthread") from the tip tree
and commit daa5d37ff51b ("rcu: Prevent force_quiescent_state() memory
contention") from the rcu tree.
Just context changes (I think). I fixed it up (see below) and can carry
the fix as necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc kernel/rcutree.h
index 1224d4c,c2a3e7d..0000000
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@@ -196,6 -200,13 +200,7 @@@ struct rcu_node
/* Refused to boost: not sure why, though. */
/* This can happen due to race conditions. */
#endif /* #ifdef CONFIG_RCU_BOOST */
- struct task_struct *node_kthread_task;
- /* kthread that takes care of this rcu_node */
- /* structure, for example, awakening the */
- /* per-CPU kthreads as needed. */
- unsigned int node_kthread_status;
- /* State of node_kthread_task for tracing. */
+ raw_spinlock_t fqslock ____cacheline_internodealigned_in_smp;
} ____cacheline_internodealigned_in_smp;
/*
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