From owner-svn-src-stable@FreeBSD.ORG Sun Jan 25 14:25:45 2015 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B3DE128E; Sun, 25 Jan 2015 14:25:45 +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 9D6C4B5C; Sun, 25 Jan 2015 14:25:45 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t0PEPjxt097280; Sun, 25 Jan 2015 14:25:45 GMT (envelope-from mav@FreeBSD.org) Received: (from mav@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t0PEPjV0097279; Sun, 25 Jan 2015 14:25:45 GMT (envelope-from mav@FreeBSD.org) Message-Id: <201501251425.t0PEPjV0097279@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: mav set sender to mav@FreeBSD.org using -f From: Alexander Motin Date: Sun, 25 Jan 2015 14:25:45 +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: r277699 - stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs 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: 2.1.18-1 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: Sun, 25 Jan 2015 14:25:45 -0000 Author: mav Date: Sun Jan 25 14:25:44 2015 New Revision: 277699 URL: https://svnweb.freebsd.org/changeset/base/277699 Log: MFC r276913: Use new optimized dmu_read_uio_dbuf() for ZVOLs in device mode. This slightly reduces overhead by avoiding dnode_hold()/dnode_rele() calls. Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c ============================================================================== --- stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sun Jan 25 13:15:12 2015 (r277698) +++ stable/10/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zvol.c Sun Jan 25 14:25:44 2015 (r277699) @@ -1819,7 +1819,7 @@ zvol_read(struct cdev *dev, struct uio * if (bytes > volsize - uio->uio_loffset) bytes = volsize - uio->uio_loffset; - error = dmu_read_uio(zv->zv_objset, ZVOL_OBJ, uio, bytes); + error = dmu_read_uio_dbuf(zv->zv_dbuf, uio, bytes); if (error) { /* convert checksum errors into IO errors */ if (error == ECKSUM)