diff options
| author |   Wei Yang <richard.weiyang@linux.alibaba.com> | 2020-06-12 10:07:54 +0800 |
|---|---|---|
| committer |   Paul E. McKenney <paulmck@kernel.org> | 2020-06-29 11:58:51 -0700 |
| commit | 7a0c2b0940c13a06573320ab7118375b35feef8b (patch) | |
| tree | 9af30eda94f882e01a6640f5f00364823b93e390 /kernel/rcu/tree.h | |
| parent | rcu: grplo/grphi just records CPU number (diff) | |
| download | linux-dev-7a0c2b0940c13a06573320ab7118375b35feef8b.tar.xz linux-dev-7a0c2b0940c13a06573320ab7118375b35feef8b.zip | |
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 <richard.weiyang@linux.alibaba.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.h')
| -rw-r--r-- | kernel/rcu/tree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h index 9f903f5c9fa1..c96ae351688b 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 */ |