svn commit: r348660 - head/sys/vm
Mark Johnston
markj at FreeBSD.org
Tue Jun 4 18:38:28 UTC 2019
Author: markj
Date: Tue Jun 4 18:38:27 2019
New Revision: 348660
URL: https://svnweb.freebsd.org/changeset/base/348660
Log:
Remove an outdated header comment for vm_page.c.
The listed rules were incomplete and outdated. There is a much more
comprehensive comment in vm_page.h.
Reviewed by: alc, kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D20503
Modified:
head/sys/vm/vm_page.c
Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c Tue Jun 4 18:36:12 2019 (r348659)
+++ head/sys/vm/vm_page.c Tue Jun 4 18:38:27 2019 (r348660)
@@ -63,23 +63,6 @@
*/
/*
- * GENERAL RULES ON VM_PAGE MANIPULATION
- *
- * - A page queue lock is required when adding or removing a page from a
- * page queue regardless of other locks or the busy state of a page.
- *
- * * In general, no thread besides the page daemon can acquire or
- * hold more than one page queue lock at a time.
- *
- * * The page daemon can acquire and hold any pair of page queue
- * locks in any order.
- *
- * - The object lock is required when inserting or removing
- * pages from an object (vm_page_insert() or vm_page_remove()).
- *
- */
-
-/*
* Resident memory management module.
*/
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