Commit a2dae430 authored by Wei Yang's avatar Wei Yang Committed by Paul E. McKenney
Browse files

rcu: grplo/grphi just records CPU number 



The ->grplo and ->grphi fields store the lowest and highest CPU number
covered by to a rcu_node structure, which is not the group number.
This commit therefore adjusts these fields' comments to match reality.

Signed-off-by: default avatarWei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 00943a60

kernel/rcu/tree.h

+2 −2
Original line number Diff line number Diff line
@@ -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 */

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