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authorAlexander Gordeev <agordeev@redhat.com>2015-02-11 15:42:37 +0100
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2015-02-26 12:11:52 -0800
commit27153acbe1141ceecf098ca5d24c2ae2714c1a5f (patch)
treee9582d6d28a27b75aab17fbc0a94dd7e3fb38ea5 /kernel/rcu
parentc517d838eb7d07bbe9507871fab3931deccff539 (diff)
rcu: Remove unnecessary condition check in rcu_qsctr_help()
When the ->curtail and ->donetail pointers differ, ->rcucblist always points to the beginning of the current list and thus cannot be NULL. Therefore, the check ->rcucblist != NULL is redundant and this commit removes it. Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tiny.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
index cc9ceca7bde1..d4e7fe5f3baf 100644
--- a/kernel/rcu/tiny.c
+++ b/kernel/rcu/tiny.c
@@ -103,8 +103,7 @@ EXPORT_SYMBOL(__rcu_is_watching);
static int rcu_qsctr_help(struct rcu_ctrlblk *rcp)
{
RCU_TRACE(reset_cpu_stall_ticks(rcp));
- if (rcp->rcucblist != NULL &&
- rcp->donetail != rcp->curtail) {
+ if (rcp->donetail != rcp->curtail) {
rcp->donetail = rcp->curtail;
return 1;
}