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authorPaul E. McKenney <paulmck@linux.ibm.com>2019-03-01 02:06:13 +0300
committerPaul E. McKenney <paulmck@linux.ibm.com>2019-03-27 00:42:53 +0300
commita3b0e1e59ef1757488ef05b66bc376eaf7b06ada (patch)
tree786786ae09fb978568ad6745c163e9830deacce5 /kernel/rcu
parentfef141f6195be5829c76ff061cc5263badc39a89 (diff)
downloadlinux-a3b0e1e59ef1757488ef05b66bc376eaf7b06ada.tar.xz
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@linux.ibm.com>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/rcutorture.c2
1 files changed, 1 insertions, 1 deletions
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