Messages in this thread Patch in this message | | | From | Pranith Kumar <> | Subject | [RFC PATCH 1/1] kernel/rcu/tree.c: correct a check for grace period in progress | Date | Tue, 10 Jun 2014 23:20:19 -0400 |
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The comment above the code says that we are checking both the current node and the parent node to see if a grace period is in progress. Change the code accordingly.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index f1ba773..b632189 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1227,7 +1227,7 @@ rcu_start_future_gp(struct rcu_node *rnp, struct rcu_data *rdp, * need to explicitly start one. */ if (rnp->gpnum != rnp->completed || - ACCESS_ONCE(rnp->gpnum) != ACCESS_ONCE(rnp->completed)) { + ACCESS_ONCE(rnp_root->gpnum) != ACCESS_ONCE(rnp_root->completed)) { rnp->need_future_gp[c & 0x1]++; trace_rcu_future_gp(rnp, rdp, c, TPS("Startedleaf")); goto out; -- 1.9.1
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