The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     a2dae43088d51c4869e7fa91ca09bcc890e277fc
Gitweb:        
https://git.kernel.org/tip/a2dae43088d51c4869e7fa91ca09bcc890e277fc
Author:        Wei Yang <[email protected]>
AuthorDate:    Fri, 12 Jun 2020 10:07:53 +08:00
Committer:     Paul E. McKenney <[email protected]>
CommitterDate: Mon, 29 Jun 2020 11:58:51 -07:00

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: Wei Yang <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
---
 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 */

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