From: Wei Yang Date: Fri, 12 Jun 2020 02:07:54 +0000 (+0800) Subject: rcu: grpnum just records group number X-Git-Tag: v5.9-rc1~204^2^2^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7a0c2b0940c13a06573320ab7118375b35feef8b;p=thirdparty%2Fkernel%2Flinux.git rcu: grpnum just records group number The ->grpnum field in the rcu_node structure contains the bit position in this structure's parent's bitmasks, which is not the CPU number. This commit therefore adjusts this field's comment accordingly. Signed-off-by: Wei Yang Signed-off-by: Paul E. McKenney --- diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 9f903f5c9fa1b..c96ae351688b9 100644 --- a/kernel/rcu/tree.h +++ b/kernel/rcu/tree.h @@ -75,7 +75,7 @@ struct rcu_node { /* Only one bit will be set in this mask. */ int grplo; /* lowest-numbered CPU here. */ int grphi; /* highest-numbered CPU here. */ - u8 grpnum; /* CPU/group number for next level up. */ + u8 grpnum; /* group number for next level up. */ u8 level; /* root is at level 0. */ bool wait_blkd_tasks;/* Necessary to wait for blocked tasks to */ /* exit RCU read-side critical sections */