From 765ba9fccb112fbbdae9404584a712cebb05742c Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 6 Oct 2009 21:48:18 -0700 Subject: [PATCH] --- yaml --- r: 167118 b: refs/heads/master c: 978c0b88146a7f9b364b71b5b83c5b12e7b413d7 h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/kernel/rcutree.c | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/[refs] b/[refs] index 96e56588c426..95d75ca04038 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: e74f4c4564455c91a3b4075bb1721993c2a95dda +refs/heads/master: 978c0b88146a7f9b364b71b5b83c5b12e7b413d7 diff --git a/trunk/kernel/rcutree.c b/trunk/kernel/rcutree.c index d8d98655c9e7..705f02ac7433 100644 --- a/trunk/kernel/rcutree.c +++ b/trunk/kernel/rcutree.c @@ -1647,7 +1647,8 @@ static void __init rcu_init_one(struct rcu_state *rsp) cpustride *= rsp->levelspread[i]; rnp = rsp->level[i]; for (j = 0; j < rsp->levelcnt[i]; j++, rnp++) { - spin_lock_init(&rnp->lock); + if (rnp != rcu_get_root(rsp)) + spin_lock_init(&rnp->lock); rnp->gpnum = 0; rnp->qsmask = 0; rnp->qsmaskinit = 0; @@ -1670,6 +1671,7 @@ static void __init rcu_init_one(struct rcu_state *rsp) INIT_LIST_HEAD(&rnp->blocked_tasks[1]); } } + spin_lock_init(&rcu_get_root(rsp)->lock); } /*