linux-kernel - [PATCH 2/20] fs/affs: return f

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Date:	Tue, 20 Jan 2009 01:31:45 +0800
From:	Coly Li <coly.li@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Roman Zippel <zippel@...ux-m68k.org>
Subject: [PATCH 2/20] fs/affs: return f_fsid for statfs(2)

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

Signed-off-by: Coly Li <coly.li@...e.de>
Cc: Roman Zippel <zippel@...ux-m68k.org>
---
 fs/affs/super.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/affs/super.c b/fs/affs/super.c
index a19d64b..5ce695e 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -533,6 +533,7 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
 	int		 free;
+	u64		 id = huge_encode_dev(sb->s_bdev->bd_dev);

 	pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
 	     AFFS_SB(sb)->s_reserved);
@@ -543,6 +544,9 @@ affs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_blocks  = AFFS_SB(sb)->s_partition_size - AFFS_SB(sb)->s_reserved;
 	buf->f_bfree   = free;
 	buf->f_bavail  = free;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);
+	buf->f_namelen = 30;
 	return 0;
 }


-- 
Coly Li
SuSE Labs



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