From owner-svn-src-stable@freebsd.org Thu Jan 26 10:29:25 2017 Return-Path: Delivered-To: svn-src-stable@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 31BDDCC0DA3; Thu, 26 Jan 2017 10:29:25 +0000 (UTC) (envelope-from kib@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 F27BF625; Thu, 26 Jan 2017 10:29:24 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v0QATO95037869; Thu, 26 Jan 2017 10:29:24 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v0QATOpY037868; Thu, 26 Jan 2017 10:29:24 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201701261029.v0QATOpY037868@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Thu, 26 Jan 2017 10:29:24 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r312798 - stable/10/sys/fs/tmpfs X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Jan 2017 10:29:25 -0000 Author: kib Date: Thu Jan 26 10:29:23 2017 New Revision: 312798 URL: https://svnweb.freebsd.org/changeset/base/312798 Log: MFC r311531 (by mjg): Perform a lockless check in tmpfs_itimes. Modified: stable/10/sys/fs/tmpfs/tmpfs_subr.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/fs/tmpfs/tmpfs_subr.c ============================================================================== --- stable/10/sys/fs/tmpfs/tmpfs_subr.c Thu Jan 26 10:19:53 2017 (r312797) +++ stable/10/sys/fs/tmpfs/tmpfs_subr.c Thu Jan 26 10:29:23 2017 (r312798) @@ -1745,19 +1745,22 @@ tmpfs_set_status(struct tmpfs_node *node } /* Sync timestamps */ -static void -tmpfs_itimes_locked(struct tmpfs_node *node, const struct timespec *acc, +void +tmpfs_itimes(struct vnode *vp, const struct timespec *acc, const struct timespec *mod) { + struct tmpfs_node *node; struct timespec now; - TMPFS_ASSERT_LOCKED(node); + ASSERT_VOP_LOCKED(vp, "tmpfs_itimes"); + node = VP_TO_TMPFS_NODE(vp); if ((node->tn_status & (TMPFS_NODE_ACCESSED | TMPFS_NODE_MODIFIED | TMPFS_NODE_CHANGED)) == 0) return; vfs_timestamp(&now); + TMPFS_NODE_LOCK(node); if (node->tn_status & TMPFS_NODE_ACCESSED) { if (acc == NULL) acc = &now; @@ -1772,19 +1775,6 @@ tmpfs_itimes_locked(struct tmpfs_node *n node->tn_ctime = now; node->tn_status &= ~(TMPFS_NODE_ACCESSED | TMPFS_NODE_MODIFIED | TMPFS_NODE_CHANGED); -} - -void -tmpfs_itimes(struct vnode *vp, const struct timespec *acc, - const struct timespec *mod) -{ - struct tmpfs_node *node; - - ASSERT_VOP_LOCKED(vp, "tmpfs_itimes"); - node = VP_TO_TMPFS_NODE(vp); - - TMPFS_NODE_LOCK(node); - tmpfs_itimes_locked(node, acc, mod); TMPFS_NODE_UNLOCK(node); }