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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-11-07 23:35:00 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-12-07 17:01:33 -0800
commit45fed3e7cfb4001c80cd4bd25249d194a52bfed3 (patch)
treeb157d20629442ce64d3691867010db33b5c718c3
parente11f13355b09df970495c45ed0eac1dc85dcf5c1 (diff)
downloadlinux-sh-45fed3e7cfb4001c80cd4bd25249d194a52bfed3.tar.gz
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>
-rw-r--r--kernel/rcu/tree.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 87b604d0b0d2..01a90a3bdf79 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1814,9 +1814,9 @@ static void rcu_gp_slow(struct rcu_state *rsp, int delay)
}
/*
- * Initialize a new grace period. Return 0 if no grace period required.
+ * Initialize a new grace period. Return false if no grace period required.
*/
-static int rcu_gp_init(struct rcu_state *rsp)
+static bool rcu_gp_init(struct rcu_state *rsp)
{
unsigned long oldmask;
struct rcu_data *rdp;
@@ -1827,7 +1827,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
if (!READ_ONCE(rsp->gp_flags)) {
/* Spurious wakeup, tell caller to go back to sleep. */
raw_spin_unlock_irq(&rnp->lock);
- return 0;
+ return false;
}
WRITE_ONCE(rsp->gp_flags, 0); /* Clear all flags: New grace period. */
@@ -1837,7 +1837,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
* Not supposed to be able to happen.
*/
raw_spin_unlock_irq(&rnp->lock);
- return 0;
+ return false;
}
/* Advance to a new grace period and initialize state. */
@@ -1929,7 +1929,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
WRITE_ONCE(rsp->gp_activity, jiffies);
}
- return 1;
+ return true;
}
/*