linux-kernel - [PATCH 15/20] fs/reiserfs: return f

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Date:	Tue, 20 Jan 2009 01:35:39 +0800
From:	Coly Li <coly.li@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	reiserfs-devel@...r.kernel.org
Subject: [PATCH 15/20] fs/reiserfs: return f_fsid for statfs(2)

This patch makes reiserfs3 return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@...e.de>
Cc: reiserfs-devel@...r.kernel.org
---
 fs/reiserfs/super.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index f3c820b..c14fcd0 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1883,7 +1883,9 @@ error:

 static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
-	struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(dentry->d_sb);
+	struct super_block *sb = dentry->d_sb;
+	struct reiserfs_super_block *rs = SB_DISK_SUPER_BLOCK(sb);
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);

 	buf->f_namelen = (REISERFS_MAX_NAME(s->s_blocksize));
 	buf->f_bfree = sb_free_blocks(rs);
@@ -1892,6 +1894,9 @@ static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_bsize = dentry->d_sb->s_blocksize;
 	/* changed to accommodate gcc folks. */
 	buf->f_type = REISERFS_SUPER_MAGIC;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);
+
 	return 0;
 }

-- 
Coly Li
SuSE Labs


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