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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-06-27 07:44:06 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-07-25 13:04:49 -0700 |
| commit | f2dbe4a562d4f17cc1bad3e36a9d1ccb19c86604 (patch) | |
| tree | ad3875857f1d0e0bdc890ad04afd53259e8e2a05 /kernel/rcu/tree.h | |
| parent | 21cc248384aeb0375b3cac164c276c78c503291a (diff) | |
| download | linux-f2dbe4a562d4f17cc1bad3e36a9d1ccb19c86604.tar.gz linux-f2dbe4a562d4f17cc1bad3e36a9d1ccb19c86604.tar.bz2 linux-f2dbe4a562d4f17cc1bad3e36a9d1ccb19c86604.zip | |
rcu: Localize rcu_state ->orphan_pend and ->orphan_done
Given that the rcu_state structure's >orphan_pend and ->orphan_done
fields are used only during migration of callbacks from the recently
offlined CPU to a surviving CPU, if rcu_send_cbs_to_orphanage() and
rcu_adopt_orphan_cbs() are combined, these fields can become local
variables in the combined function. This commit therefore combines
rcu_send_cbs_to_orphanage() and rcu_adopt_orphan_cbs() into a new
rcu_segcblist_merge() function and removes the ->orphan_pend and
->orphan_done fields.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 62b1d0b0d47c..b99f31c2b0c3 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -348,12 +348,6 @@ struct rcu_state { /* End of fields guarded by root rcu_node's lock. */ - struct rcu_cblist orphan_pend; /* Orphaned callbacks that */ - /* need a grace period. */ - struct rcu_cblist orphan_done; /* Orphaned callbacks that */ - /* are ready to invoke. */ - /* (Contains counts.) */ - struct mutex barrier_mutex; /* Guards barrier fields. */ atomic_t barrier_cpu_count; /* # CPUs waiting on. */ struct completion barrier_completion; /* Wake at barrier end. */ |