svn commit: r303838 - user/alc/PQ_LAUNDRY/sys/vm

[Alan Cox]

Author: alc
Date: Mon Aug  8 17:44:54 2016
New Revision: 303838
URL: https://svnweb.freebsd.org/changeset/base/303838

Log:
  Add comment.

Modified:
  user/alc/PQ_LAUNDRY/sys/vm/vm_pageout.c

Modified: user/alc/PQ_LAUNDRY/sys/vm/vm_pageout.c
==============================================================================
--- user/alc/PQ_LAUNDRY/sys/vm/vm_pageout.c	Mon Aug  8 16:22:16 2016	(r303837)
+++ user/alc/PQ_LAUNDRY/sys/vm/vm_pageout.c	Mon Aug  8 17:44:54 2016	(r303838)
@@ -1152,6 +1152,7 @@ vm_pageout_laundry_worker(void *arg)
 			 */
 			target = vm_cnt.v_free_target -
 			    vm_pageout_wakeup_thresh;
+			/* Avoid division by zero. */
 			if (ninact == 0)
 				ninact = 1;
 			target = nlaundry * (u_int)target / ninact / 10;