srcu: Fix bogus try_check_zero() comment

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2017-03-15 16:34:11 -07:00
parent e95d68d212
commit 91e27c356c

View File

@ -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)
{