Date: Wed, 24 Jul 2013 07:46:15 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r253594 - user/attilio/vmobj-readlock/sys/vm Message-ID: <201307240746.r6O7kFaF062499@svn.freebsd.org>
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Author: attilio Date: Wed Jul 24 07:46:15 2013 New Revision: 253594 URL: http://svnweb.freebsd.org/changeset/base/253594 Log: Remove wrong comment. Sponsored by: EMC / Isilon storage division Reported by: jeff Modified: user/attilio/vmobj-readlock/sys/vm/vm_page.h Modified: user/attilio/vmobj-readlock/sys/vm/vm_page.h ============================================================================== --- user/attilio/vmobj-readlock/sys/vm/vm_page.h Wed Jul 24 07:15:08 2013 (r253593) +++ user/attilio/vmobj-readlock/sys/vm/vm_page.h Wed Jul 24 07:46:15 2013 (r253594) @@ -109,16 +109,6 @@ * contains the dirty field. In the machine-independent layer, * the implementation of read-modify-write operations on the * field is encapsulated in vm_page_clear_dirty_mask(). - * - * Page content access is regulated (mostly) by the busy mechanism. - * When the page content is changing (for example, during a page READ - * operation) the page owner must acquire an write busy token. Similarly, - * when the page content is just being accessed for reading purposes - * (for example, during a page WRITE operation) the page owner must - * acquire a read busy token. - * The busy mechanism is regulated by the vm_page_busy_*() family of - * primitives and it follows a reader/writer lock pattern as the names - * suggest. */ #if PAGE_SIZE == 4096
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