Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761762AbZATP7p (ORCPT ); Tue, 20 Jan 2009 10:59:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756258AbZATP7f (ORCPT ); Tue, 20 Jan 2009 10:59:35 -0500 Received: from ns2.suse.de ([195.135.220.15]:57838 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752106AbZATP7f (ORCPT ); Tue, 20 Jan 2009 10:59:35 -0500 Message-ID: <4975F653.2000109@suse.de> Date: Wed, 21 Jan 2009 00:05:39 +0800 From: Coly Li Reply-To: coly.li@suse.de Organization: SuSE Labs User-Agent: Thunderbird 2.0.0.19 (X11/20090106) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Cc: Dave Kleikamp Subject: [PATCH 11/20] fs/jfs: return f_fsid for statfs(2), v3 X-Enigmail-Version: 0.95.7 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1377 Lines: 47 This patch makes jfs return f_fsid info for statfs(2). By Andreas' suggestion, this patch populates a persistent f_fsid between boots/mounts with help of on-disk uuid record. Signed-off-by: Coly Li Acked-By: Dave Kleikamp --- fs/jfs/super.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/fs/jfs/super.c b/fs/jfs/super.c index b37d1f7..6ce1aac 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -168,7 +169,10 @@ static int jfs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_files = maxinodes; buf->f_ffree = maxinodes - (atomic_read(&imap->im_numinos) - atomic_read(&imap->im_numfree)); - + buf->f_fsid.val[0] = (u32)crc32_le(0, sbi->uuid, sizeof(sbi->uuid)/2); + buf->f_fsid.val[1] = (u32)crc32_le(0, sbi->uuid + sizeof(sbi->uuid)/2, + sizeof(sbi->uuid)/2); + buf->f_namelen = JFS_NAME_MAX; return 0; } -- Coly Li SuSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/