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rcu: Wire up RCU_BOOST_PRIO for rcutree

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RCU boost threads start life at RCU_BOOST_PRIO, while others remain
at RCU_KTHREAD_PRIO.  While here, change thread names to match other
kthreads, and adjust rcu_yield() to not override the priority set by
the user.  This last change sets the stage for runtime changes to
priority in the -rt tree.

Signed-off-by: Mike Galbraith <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
This commit is contained in:
Mike Galbraith 2011-08-19 11:39:11 -07:00 • committed by Paul E. McKenney
commit 5b61b0baa9
2 changed files with 15 additions and 7 deletions
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kernel/rcutree.c
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@ -131,8 +131,6 @@ static void rcu_node_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu);
static void invoke_rcu_core(void);
static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp);
#define RCU_KTHREAD_PRIO 1 /* RT priority for per-CPU kthreads. */
/*
* Track the rcutorture test sequence number and the update version
* number within a given test. The rcutorture_testseq is incremented