Messages in this thread Patch in this message | | | From | paulmck@kernel ... | Subject | [PATCH tip/core/rcu 21/26] rcu: grplo/grphi just records CPU number | Date | Mon, 22 Jun 2020 17:21:42 -0700 |
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From: Wei Yang <richard.weiyang@linux.alibaba.com>
We store lowest and highest CPU number belongs to a rcu_node, which is not the group number.
Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> --- kernel/rcu/tree.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 09ec93b..9f903f5 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -73,8 +73,8 @@ struct rcu_node { unsigned long ffmask; /* Fully functional CPUs. */ unsigned long grpmask; /* Mask to apply to parent qsmask. */ /* Only one bit will be set in this mask. */ - int grplo; /* lowest-numbered CPU or group here. */ - int grphi; /* highest-numbered CPU or group here. */ + int grplo; /* lowest-numbered CPU here. */ + int grphi; /* highest-numbered CPU here. */ u8 grpnum; /* CPU/group number for next level up. */ u8 level; /* root is at level 0. */ bool wait_blkd_tasks;/* Necessary to wait for blocked tasks to */ -- 2.9.5
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