Commit-ID: a3b0e1e59ef1757488ef05b66bc376eaf7b06ada Gitweb: https://git.kernel.org/tip/a3b0e1e59ef1757488ef05b66bc376eaf7b06ada Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxx> AuthorDate: Thu, 28 Feb 2019 15:06:13 -0800 Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxx> CommitDate: Tue, 26 Mar 2019 14:42:53 -0700 rcutorture: Make rcutorture_extend_mask() comment match the code The code actually rarely uses more than one type of RCU read-side protection, as is actually desired given that we need some reasonable probability of preempting RCU read-side critical sections, which cannot happen with multiple types of protection. This comment therefore adjusts the comment. Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx> --- kernel/rcu/rcutorture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index f14d1b18a74f..2453229ba15a 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1160,7 +1160,7 @@ rcutorture_extend_mask(int oldmask, struct torture_random_state *trsp) unsigned long randmask2 = randmask1 >> 3; WARN_ON_ONCE(mask >> RCUTORTURE_RDR_SHIFT); - /* Most of the time lots of bits, half the time only one bit. */ + /* Mostly only one bit (need preemption!), sometimes lots of bits. */ if (!(randmask1 & 0x7)) mask = mask & randmask2; else
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