From owner-svn-src-all@FreeBSD.ORG Sat Oct 18 15:28:02 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D5D98535; Sat, 18 Oct 2014 15:28:02 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::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 C1F38A78; Sat, 18 Oct 2014 15:28:02 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id s9IFS211099431; Sat, 18 Oct 2014 15:28:02 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id s9IFS23q099428; Sat, 18 Oct 2014 15:28:02 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201410181528.s9IFS23q099428@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Sat, 18 Oct 2014 15:28:02 +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: r273254 - in stable/10/sys: kern sys X-SVN-Group: stable-10 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: 2.1.18-1 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: Sat, 18 Oct 2014 15:28:03 -0000 Author: kib Date: Sat Oct 18 15:28:01 2014 New Revision: 273254 URL: https://svnweb.freebsd.org/changeset/base/273254 Log: MFC r272534: Add IO_RANGELOCKED flag for vn_rdwr(9), which specifies that vnode is not locked, but range is. Modified: stable/10/sys/kern/vfs_vnops.c stable/10/sys/sys/vnode.h Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/kern/vfs_vnops.c ============================================================================== --- stable/10/sys/kern/vfs_vnops.c Sat Oct 18 15:18:31 2014 (r273253) +++ stable/10/sys/kern/vfs_vnops.c Sat Oct 18 15:28:01 2014 (r273254) @@ -502,13 +502,16 @@ vn_rdwr(enum uio_rw rw, struct vnode *vp error = 0; if ((ioflg & IO_NODELOCKED) == 0) { - if (rw == UIO_READ) { - rl_cookie = vn_rangelock_rlock(vp, offset, - offset + len); - } else { - rl_cookie = vn_rangelock_wlock(vp, offset, - offset + len); - } + if ((ioflg & IO_RANGELOCKED) == 0) { + if (rw == UIO_READ) { + rl_cookie = vn_rangelock_rlock(vp, offset, + offset + len); + } else { + rl_cookie = vn_rangelock_wlock(vp, offset, + offset + len); + } + } else + rl_cookie = NULL; mp = NULL; if (rw == UIO_WRITE) { if (vp->v_type != VCHR && Modified: stable/10/sys/sys/vnode.h ============================================================================== --- stable/10/sys/sys/vnode.h Sat Oct 18 15:18:31 2014 (r273253) +++ stable/10/sys/sys/vnode.h Sat Oct 18 15:28:01 2014 (r273254) @@ -305,6 +305,7 @@ struct vattr { #define IO_NORMAL 0x0800 /* operate on regular data */ #define IO_NOMACCHECK 0x1000 /* MAC checks unnecessary */ #define IO_BUFLOCKED 0x2000 /* ffs flag; indir buf is locked */ +#define IO_RANGELOCKED 0x4000 /* range locked */ #define IO_SEQMAX 0x7F /* seq heuristic max value */ #define IO_SEQSHIFT 16 /* seq heuristic in upper 16 bits */