From patchwork Sat Aug 13 00:30:12 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boaz Harrosh X-Patchwork-Id: 1062742 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p7D0UN8i021441 for ; Sat, 13 Aug 2011 00:30:23 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753127Ab1HMAaW (ORCPT ); Fri, 12 Aug 2011 20:30:22 -0400 Received: from natasha.panasas.com ([67.152.220.90]:57562 "EHLO natasha.panasas.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752819Ab1HMAaV (ORCPT ); Fri, 12 Aug 2011 20:30:21 -0400 Received: from zenyatta.panasas.com (zenyatta.int.panasas.com [172.17.28.63]) by natasha.panasas.com (8.13.1/8.13.1) with ESMTP id p7D0UJ0Y021615; Fri, 12 Aug 2011 20:30:19 -0400 Received: from [172.17.132.75] (172.17.132.75) by zenyatta.int.panasas.com (172.17.28.63) with Microsoft SMTP Server (TLS) id 14.1.289.1; Fri, 12 Aug 2011 20:30:13 -0400 Message-ID: <4E45C594.1030609@panasas.com> Date: Fri, 12 Aug 2011 17:30:12 -0700 From: Boaz Harrosh User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0 MIME-Version: 1.0 To: "J. Bruce Fields" , NFS list Subject: [RFC] nfsd4: This is: "fix failure to end nfsd4 grace period" ++ Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Sat, 13 Aug 2011 00:30:23 +0000 (UTC) Bruce hi This is the patch I'm currently using to be able to run. It is your patch but the cl_firststate = 1 is promoted to before any failures. Please Also consider adding and promoting some of these prints to DMESGs so Admins can know they have a broken setup. Like directories do not exist or permission not properly set. Though I admit the messages should be properly worded. Thanks Boaz --- From: "J. Bruce Fields" Date: Fri, 12 Aug 2011 17:18:04 -0700 Subject: [PATCH] nfsd4: This is: "fix failure to end nfsd4 grace period" ++ J. Bruce Fields: Even if we fail to write a recovery record to stable storage, we should still mark the client as having acquired its first state. Otherwise we leave 4.1 clients with indefinite ERR_GRACE returns. Signed-off-by: J. Bruce Fields Boaz Harrosh: I don't think this fix is enough what about the failure of nfs4_save_creds It can only fail with -ENOMEM do you hang the client in this case? I think Some of these prints should be delegated to a KERN_ERR since it is a possible setup problem. Signed-off-by: Boaz Harrosh --- fs/nfsd/nfs4recover.c | 19 +++++++++++++------ 1 files changed, 13 insertions(+), 6 deletions(-) diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index 29d77f6..baedd89 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -129,9 +129,12 @@ nfsd4_create_clid_dir(struct nfs4_client *clp) if (!rec_file || clp->cl_firststate) return 0; + clp->cl_firststate = 1; status = nfs4_save_creds(&original_cred); - if (status < 0) + if (unlikely(status < 0)) { + printk(KERN_ERR "!!!nfs4_save_creds Returned => %d\n", status); return status; + } dir = rec_file->f_path.dentry; /* lock the parent */ @@ -140,26 +143,30 @@ nfsd4_create_clid_dir(struct nfs4_client *clp) dentry = lookup_one_len(dname, dir, HEXDIR_LEN-1); if (IS_ERR(dentry)) { status = PTR_ERR(dentry); + printk(KERN_ERR "NFSD: lookup_one_len => %d\n", status); goto out_unlock; } status = -EEXIST; if (dentry->d_inode) { - dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n"); + printk(KERN_ERR "NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n"); goto out_put; } status = mnt_want_write(rec_file->f_path.mnt); - if (status) + if (unlikely(status)) { + printk(KERN_ERR "!!!mnt_want_write Returned => %d\n", status); goto out_put; + } status = vfs_mkdir(dir->d_inode, dentry, S_IRWXU); + if (unlikely(status)) + printk(KERN_ERR "!!!vfs_mkdir Returned => %d\n", status); + mnt_drop_write(rec_file->f_path.mnt); out_put: dput(dentry); out_unlock: mutex_unlock(&dir->d_inode->i_mutex); - if (status == 0) { - clp->cl_firststate = 1; + if (status == 0) vfs_fsync(rec_file, 0); - } nfs4_reset_creds(original_cred); dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status); return status;