[PATCH 10/20] fs/isofs: return f_fsid for statfs(2)

[PATCH 10/20] fs/isofs: return f_fsid for statfs(2)

[Coly Li]

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

Signed-off-by: Coly Li <coly.li@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 fs/isofs/inode.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 6147ec3..8e17431 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -923,6 +923,7 @@ out_freesbi:
 static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);

 	buf->f_type = ISOFS_SUPER_MAGIC;
 	buf->f_bsize = sb->s_blocksize;
@@ -932,6 +933,8 @@ static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
 	buf->f_bavail = 0;
 	buf->f_files = ISOFS_SB(sb)->s_ninodes;
 	buf->f_ffree = 0;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);
 	buf->f_namelen = NAME_MAX;
 	return 0;
 }

-- 
Coly Li
SuSE Labs