Date: Mon, 12 Nov 2012 15:17:25 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r242921 - stable/9/sys/kern Message-ID: <201211121517.qACFHPS1042525@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: kib Date: Mon Nov 12 15:17:25 2012 New Revision: 242921 URL: http://svnweb.freebsd.org/changeset/base/242921 Log: MFC r242617: A clarification to the behaviour of the active vnode list management regarding the vnode page cleaning. Modified: stable/9/sys/kern/vfs_subr.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/kern/vfs_subr.c ============================================================================== --- stable/9/sys/kern/vfs_subr.c Mon Nov 12 14:34:46 2012 (r242920) +++ stable/9/sys/kern/vfs_subr.c Mon Nov 12 15:17:25 2012 (r242921) @@ -2547,6 +2547,9 @@ vinactive(struct vnode *vp, struct threa * Before moving off the active list, we must be sure that any * modified pages are on the vnode's dirty list since these will * no longer be checked once the vnode is on the inactive list. + * Because the vnode vm object keeps a hold reference on the vnode + * if there is at least one resident non-cached page, the vnode + * cannot leave the active list without the page cleanup done. */ obj = vp->v_object; if (obj != NULL && (obj->flags & OBJ_MIGHTBEDIRTY) != 0) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201211121517.qACFHPS1042525>