From owner-dev-commits-src-all@freebsd.org Sun Jul 11 22:30:19 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BFC1666FC76; Sun, 11 Jul 2021 22:30:19 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GNM6M4tK2z3vDY; Sun, 11 Jul 2021 22:30:19 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 8FC4523A06; Sun, 11 Jul 2021 22:30:19 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 16BMUJsW025715; Sun, 11 Jul 2021 22:30:19 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 16BMUJen025708; Sun, 11 Jul 2021 22:30:19 GMT (envelope-from git) Date: Sun, 11 Jul 2021 22:30:19 GMT Message-Id: <202107112230.16BMUJen025708@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Rick Macklem Subject: git: 8a04edfdcbd2 - stable/13 - nfscl: Change the default minor version for NFSv4 mounts MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: rmacklem X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 8a04edfdcbd2267ce8d8485374101bba580f5d83 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 11 Jul 2021 22:30:19 -0000 The branch stable/13 has been updated by rmacklem: URL: https://cgit.FreeBSD.org/src/commit/?id=8a04edfdcbd2267ce8d8485374101bba580f5d83 commit 8a04edfdcbd2267ce8d8485374101bba580f5d83 Author: Rick Macklem AuthorDate: 2021-06-25 01:52:23 +0000 Commit: Rick Macklem CommitDate: 2021-07-11 22:26:55 +0000 nfscl: Change the default minor version for NFSv4 mounts When NFSv4.1 support was added to the client, the implementation was still experimental and, as such, the default minor version was set to 0. Since the NFSv4.1 client implementation is now believed to be solid and the NFSv4.1/4.2 protocol is significantly better than NFSv4.0, I beieve that NFSv4.1/4.2 should be used where possible. This patch changes the default minor version for NFSv4 to be the highest minor version supported by the NFSv4 server. If a specific minor version is desired, the "minorversion" mount option can be used to override this default. This is compatible with the Linux NFSv4 client behaviour. This was discussed on freebsd-current@ in mid-May 2021 under the subject "changing the default NFSv4 minor version" and the consensus seemed to be support for this change. It also appeared that changing this for FreeBSD 13.1 was not considered a POLA violation, so long as UPDATING and RELNOTES entries were made for it. (cherry picked from commit a145cf3f73c7d0f6071a6bddbe8a50a280285900) --- sys/fs/nfsclient/nfs_clstate.c | 9 ++++++++- sys/fs/nfsclient/nfs_clvfsops.c | 14 ++++++++++---- 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/sys/fs/nfsclient/nfs_clstate.c b/sys/fs/nfsclient/nfs_clstate.c index fb90c80c69e7..8ea5d77d2053 100644 --- a/sys/fs/nfsclient/nfs_clstate.c +++ b/sys/fs/nfsclient/nfs_clstate.c @@ -959,11 +959,18 @@ nfscl_getcl(struct mount *mp, struct ucred *cred, NFSPROC_T *p, error == NFSERR_BADSESSION || error == NFSERR_CLIDINUSE) { (void) nfs_catnap(PZERO, error, "nfs_setcl"); + } else if (error == NFSERR_MINORVERMISMATCH && + tryminvers) { + if (nmp->nm_minorvers > 0) + nmp->nm_minorvers--; + else + tryminvers = false; } } while (((error == NFSERR_STALECLIENTID || error == NFSERR_BADSESSION || error == NFSERR_STALEDONTRECOVER) && --trystalecnt > 0) || - (error == NFSERR_CLIDINUSE && --clidinusedelay > 0)); + (error == NFSERR_CLIDINUSE && --clidinusedelay > 0) || + (error == NFSERR_MINORVERMISMATCH && tryminvers)); if (error) { NFSLOCKCLSTATE(); nfsv4_unlock(&clp->nfsc_lock, 0); diff --git a/sys/fs/nfsclient/nfs_clvfsops.c b/sys/fs/nfsclient/nfs_clvfsops.c index 5abd41dee1a1..974bc684bf5b 100644 --- a/sys/fs/nfsclient/nfs_clvfsops.c +++ b/sys/fs/nfsclient/nfs_clvfsops.c @@ -895,7 +895,7 @@ nfs_mount(struct mount *mp) char *cp, *opt, *name, *secname, *tlscertname; int nametimeo = NFS_DEFAULT_NAMETIMEO; int negnametimeo = NFS_DEFAULT_NEGNAMETIMEO; - int minvers = 0; + int minvers = -1; int dirlen, has_nfs_args_opt, has_nfs_from_opt, krbnamelen, srvkrbnamelen; size_t hstlen; @@ -1417,6 +1417,7 @@ mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam, struct nfsclclient *clp; struct nfsclds *dsp, *tdsp; uint32_t lease; + bool tryminvers; static u_int64_t clval = 0; #ifdef KERN_TLS u_int maxlen; @@ -1521,9 +1522,14 @@ mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam, nmp->nm_wcommitsize *= 2; nmp->nm_wcommitsize *= 256; - if ((argp->flags & NFSMNT_NFSV4) != 0) + tryminvers = false; + if ((argp->flags & NFSMNT_NFSV4) != 0) { + if (minvers < 0) { + tryminvers = true; + minvers = NFSV42_MINORVERSION; + } nmp->nm_minorvers = minvers; - else + } else nmp->nm_minorvers = 0; nfs_decode_args(mp, nmp, argp, hst, cred, td); @@ -1574,7 +1580,7 @@ mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam, /* For NFSv4, get the clientid now. */ if ((argp->flags & NFSMNT_NFSV4) != 0) { NFSCL_DEBUG(3, "at getcl\n"); - error = nfscl_getcl(mp, cred, td, false, &clp); + error = nfscl_getcl(mp, cred, td, tryminvers, &clp); NFSCL_DEBUG(3, "aft getcl=%d\n", error); if (error != 0) goto bad;