Update a comment in vm_page_advise() to match behaviour after r290529.

Reviewed by:	alc
MFC after:	3 days

1 files changed, 5 insertions, 3 deletions

diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 4ecc0ead4abc..4872472cd1fa 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -3411,9 +3411,11 @@ vm_page_advise(vm_page_t m, int advice)
 		vm_page_dirty(m);
 
 	/*
-	 * Place clean pages at the head of the inactive queue rather than the
-	 * tail, thus defeating the queue's LRU operation and ensuring that the
-	 * page will be reused quickly.
+	 * Place clean pages near the head of the inactive queue rather than
+	 * the tail, thus defeating the queue's LRU operation and ensuring that
+	 * the page will be reused quickly.  Dirty pages are given a chance to
+	 * cycle once through the inactive queue before becoming eligible for
+	 * laundering.
 	 */
 	_vm_page_deactivate(m, m->dirty == 0);
 }