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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-03-16 00:34:11 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2017-04-18 20:38:21 +0200 |
| commit | 91e27c356c96d760f5c283f05627ed976377debb (patch) | |
| tree | d0a614d0d588da58af3a9c38deec68d7707aee24 /kernel/rcu/srcu.c | |
| parent | srcu: Make num_rcu_lvl[] array be external (diff) | |
| download | linux-91e27c356c96d760f5c283f05627ed976377debb.tar.xz linux-91e27c356c96d760f5c283f05627ed976377debb.zip | |
srcu: Fix bogus try_check_zero() comment
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/srcu.c')
| -rw-r--r-- | kernel/rcu/srcu.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c index 0b511de7ca4d..1a2dc74bb625 100644 --- a/kernel/rcu/srcu.c +++ b/kernel/rcu/srcu.c @@ -260,10 +260,9 @@ static void srcu_gp_start(struct srcu_struct *sp) } /* - * @@@ Wait until all pre-existing readers complete. Such readers - * will have used the index specified by "idx". - * the caller should ensures the ->completed is not changed while checking - * and idx = (->completed & 1) ^ 1 + * Wait until all readers counted by array index idx complete, but loop + * a maximum of trycount times. The caller must ensure that ->completed + * is not changed while checking. */ static bool try_check_zero(struct srcu_struct *sp, int idx, int trycount) { |