rcu: Make rcu_gp_init() be bool rather than int
The return value from rcu_gp_init() is always used as a bool, so this commit makes it be a bool. Reported-by: Iftekhar Ahmed <ahmedi@oregonstate.edu> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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@ -1814,9 +1814,9 @@ static void rcu_gp_slow(struct rcu_state *rsp, int delay)
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}
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/*
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* Initialize a new grace period. Return 0 if no grace period required.
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* Initialize a new grace period. Return false if no grace period required.
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*/
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static int rcu_gp_init(struct rcu_state *rsp)
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static bool rcu_gp_init(struct rcu_state *rsp)
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{
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unsigned long oldmask;
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struct rcu_data *rdp;
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@ -1827,7 +1827,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
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if (!READ_ONCE(rsp->gp_flags)) {
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/* Spurious wakeup, tell caller to go back to sleep. */
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raw_spin_unlock_irq(&rnp->lock);
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return 0;
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return false;
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}
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WRITE_ONCE(rsp->gp_flags, 0); /* Clear all flags: New grace period. */
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@ -1837,7 +1837,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
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* Not supposed to be able to happen.
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*/
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raw_spin_unlock_irq(&rnp->lock);
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return 0;
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return false;
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}
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/* Advance to a new grace period and initialize state. */
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@ -1929,7 +1929,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
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WRITE_ONCE(rsp->gp_activity, jiffies);
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}
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return 1;
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return true;
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}
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/*
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