From owner-svn-src-all@freebsd.org Sun Dec 11 19:24:42 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 51835C7202A; Sun, 11 Dec 2016 19:24:42 +0000 (UTC) (envelope-from alc@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 2137DFDB; Sun, 11 Dec 2016 19:24:42 +0000 (UTC) (envelope-from alc@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id uBBJOfTG098565; Sun, 11 Dec 2016 19:24:41 GMT (envelope-from alc@FreeBSD.org) Received: (from alc@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id uBBJOfC6098563; Sun, 11 Dec 2016 19:24:41 GMT (envelope-from alc@FreeBSD.org) Message-Id: <201612111924.uBBJOfC6098563@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: alc set sender to alc@FreeBSD.org using -f From: Alan Cox Date: Sun, 11 Dec 2016 19:24:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r309855 - in head/sys: fs/tmpfs kern X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Dec 2016 19:24:42 -0000 Author: alc Date: Sun Dec 11 19:24:41 2016 New Revision: 309855 URL: https://svnweb.freebsd.org/changeset/base/309855 Log: When tmpfs and POSIX shm pagein a page for the sole purpose of performing truncation, immediately queue the page for asynchronous laundering rather than making the page pass through inactive queue first. Reviewed by: kib, markj Modified: head/sys/fs/tmpfs/tmpfs_subr.c head/sys/kern/uipc_shm.c Modified: head/sys/fs/tmpfs/tmpfs_subr.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_subr.c Sun Dec 11 19:01:27 2016 (r309854) +++ head/sys/fs/tmpfs/tmpfs_subr.c Sun Dec 11 19:24:41 2016 (r309855) @@ -1376,7 +1376,15 @@ retry: NULL); vm_page_lock(m); if (rv == VM_PAGER_OK) { - vm_page_deactivate(m); + /* + * Since the page was not resident, + * and therefore not recently + * accessed, immediately enqueue it + * for asynchronous laundering. The + * current operation is not regarded + * as an access. + */ + vm_page_launder(m); vm_page_unlock(m); vm_page_xunbusy(m); } else { Modified: head/sys/kern/uipc_shm.c ============================================================================== --- head/sys/kern/uipc_shm.c Sun Dec 11 19:01:27 2016 (r309854) +++ head/sys/kern/uipc_shm.c Sun Dec 11 19:24:41 2016 (r309855) @@ -460,7 +460,15 @@ retry: NULL); vm_page_lock(m); if (rv == VM_PAGER_OK) { - vm_page_deactivate(m); + /* + * Since the page was not resident, + * and therefore not recently + * accessed, immediately enqueue it + * for asynchronous laundering. The + * current operation is not regarded + * as an access. + */ + vm_page_launder(m); vm_page_unlock(m); vm_page_xunbusy(m); } else {