From 7b2e6011f150c42235c4a541d20cf6891afe878a Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 8 Oct 2012 10:54:03 -0700 Subject: rcu: Rename ->onofflock to ->orphan_lock The ->onofflock field in the rcu_state structure at one time synchronized CPU-hotplug operations for RCU. However, its scope has decreased over time so that it now only protects the lists of orphaned RCU callbacks. This commit therefore renames it to ->orphan_lock to reflect its current use. Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney --- kernel/rcutree.h | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'kernel/rcutree.h') diff --git a/kernel/rcutree.h b/kernel/rcutree.h index a240f032848e..a7c945d149cf 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -383,9 +383,8 @@ struct rcu_state { /* End of fields guarded by root rcu_node's lock. */ - raw_spinlock_t onofflock ____cacheline_internodealigned_in_smp; - /* exclude on/offline and */ - /* starting new GP. */ + raw_spinlock_t orphan_lock ____cacheline_internodealigned_in_smp; + /* Protect following fields. */ struct rcu_head *orphan_nxtlist; /* Orphaned callbacks that */ /* need a grace period. */ struct rcu_head **orphan_nxttail; /* Tail of above. */ @@ -394,7 +393,7 @@ struct rcu_state { struct rcu_head **orphan_donetail; /* Tail of above. */ long qlen_lazy; /* Number of lazy callbacks. */ long qlen; /* Total number of callbacks. */ - /* End of fields guarded by onofflock. */ + /* End of fields guarded by orphan_lock. */ struct mutex onoff_mutex; /* Coordinate hotplug & GPs. */ -- cgit v1.2.3