From owner-svn-src-all@freebsd.org Mon May 16 15:37:42 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 58486B3DEE5; Mon, 16 May 2016 15:37:42 +0000 (UTC) (envelope-from avg@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 0E0301A29; Mon, 16 May 2016 15:37:41 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u4GFbfOO030526; Mon, 16 May 2016 15:37:41 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u4GFbfs5030525; Mon, 16 May 2016 15:37:41 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201605161537.u4GFbfs5030525@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Mon, 16 May 2016 15:37:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r299949 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs 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: 2.1.22 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: Mon, 16 May 2016 15:37:42 -0000 Author: avg Date: Mon May 16 15:37:41 2016 New Revision: 299949 URL: https://svnweb.freebsd.org/changeset/base/299949 Log: try to recycle "snap" vnodes as soon as possible Those vnodes should not linger. "Stale" nodes may get out of synchronization with actual snapshots. For example if we destroy a snapshot and create a new one with the same name. Or when we rename a snapshot. While there fix the argument type for zfsctl_snapshot_reclaim(). Also, its original argument can be passed to gfs_vop_reclaim() directly. Bug 209093 could be related although I have not specifically verified that. Referencing just in case. PR: 209093 MFC after: 5 weeks Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c ============================================================================== --- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c Mon May 16 15:32:02 2016 (r299948) +++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c Mon May 16 15:37:41 2016 (r299949) @@ -1490,17 +1490,28 @@ zfsctl_snapshot_mknode(vnode_t *pvp, uin return (vp); } +static int +zfsctl_snapshot_inactive(ap) + struct vop_inactive_args /* { + struct vnode *a_vp; + struct thread *a_td; + } */ *ap; +{ + vnode_t *vp = ap->a_vp; + + vrecycle(vp); + return (0); +} static int zfsctl_snapshot_reclaim(ap) - struct vop_inactive_args /* { + struct vop_reclaim_args /* { struct vnode *a_vp; struct thread *a_td; } */ *ap; { vnode_t *vp = ap->a_vp; cred_t *cr = ap->a_td->td_ucred; - struct vop_reclaim_args iap; zfsctl_snapdir_t *sdp; zfs_snapentry_t *sep, *next; int locked; @@ -1543,8 +1554,7 @@ zfsctl_snapshot_reclaim(ap) * "active". If we lookup the same name again we will end up * creating a new vnode. */ - iap.a_vp = vp; - gfs_vop_reclaim(&iap); + gfs_vop_reclaim(ap); return (0); } @@ -1597,7 +1607,7 @@ zfsctl_snapshot_vptocnp(struct vop_vptoc */ static struct vop_vector zfsctl_ops_snapshot = { .vop_default = &default_vnodeops, - .vop_inactive = VOP_NULL, + .vop_inactive = zfsctl_snapshot_inactive, .vop_reclaim = zfsctl_snapshot_reclaim, .vop_vptocnp = zfsctl_snapshot_vptocnp, };