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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-10-31 00:01:18 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-12-07 17:01:31 -0800
commitd117c8aa1d511f76401337620b9c4ffb4c886579 (patch)
tree46ead57622feee14e5986bde39888dea0e797f22
parenta87f203e2731ab477386c678e59033ee103018c0 (diff)
downloadlinux-sh-d117c8aa1d511f76401337620b9c4ffb4c886579.tar.gz
rcu: Make cpu_needs_another_gp() be bool
The cpu_needs_another_gp() function is currently of type int, but only returns zero or one. Bow to reality and make it be of type bool. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-rw-r--r--kernel/rcu/tree.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9a4c8c0653ff..d6863bceeb45 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -597,25 +597,25 @@ static int rcu_future_needs_gp(struct rcu_state *rsp)
* The caller must have disabled interrupts to prevent races with
* normal callback registry.
*/
-static int
+static bool
cpu_needs_another_gp(struct rcu_state *rsp, struct rcu_data *rdp)
{
int i;
if (rcu_gp_in_progress(rsp))
- return 0; /* No, a grace period is already in progress. */
+ return false; /* No, a grace period is already in progress. */
if (rcu_future_needs_gp(rsp))
- return 1; /* Yes, a no-CBs CPU needs one. */
+ return true; /* Yes, a no-CBs CPU needs one. */
if (!rdp->nxttail[RCU_NEXT_TAIL])
- return 0; /* No, this is a no-CBs (or offline) CPU. */
+ return false; /* No, this is a no-CBs (or offline) CPU. */
if (*rdp->nxttail[RCU_NEXT_READY_TAIL])
- return 1; /* Yes, this CPU has newly registered callbacks. */
+ return true; /* Yes, CPU has newly registered callbacks. */
for (i = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++)
if (rdp->nxttail[i - 1] != rdp->nxttail[i] &&
ULONG_CMP_LT(READ_ONCE(rsp->completed),
rdp->nxtcompleted[i]))
- return 1; /* Yes, CBs for future grace period. */
- return 0; /* No grace period needed. */
+ return true; /* Yes, CBs for future grace period. */
+ return false; /* No grace period needed. */
}
/*