Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 32/40] srcu: Fix bogus try_check_zero() comment | Date | Wed, 12 Apr 2017 10:40:17 -0700 |
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Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- kernel/rcu/srcu.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c index d51ab050f777..5aeeaecfb673 100644 --- a/kernel/rcu/srcu.c +++ b/kernel/rcu/srcu.c @@ -254,10 +254,9 @@ 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) { -- 2.5.2
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