fs/adfs: return f_fsid for statfs(2)

Currently many file systems in Linux kernel do not return f_fsid in statfs
info, the value is set as 0 in vfs layer.  Anyway, in some conditions,
f_fsid from statfs(2) is useful, especially being used as (f_fsid, ino)
pair to uniquely identify a file.

Basic idea of the patches is generating a unique fs ID by
huge_encode_dev(sb->s_bdev->bd_dev) during file system mounting life time
(no endian consistent issue).  sb is a point of struct super_block of
current mounted file system being accessed by statfs(2).

This patch:

Make adfs return f_fsid info for statfs(2), and do a little variable
renaming in adfs_statfs().

Signed-off-by: Coly Li <[email protected]>
Cc: Roman Zippel <[email protected]>
Cc: "Sergey S. Kostyliov" <[email protected]>
Cc: OGAWA Hirofumi <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Cc: Dave Kleikamp <[email protected]>
Cc: Bob Copeland <[email protected]>
Cc: Anders Larsen <[email protected]>
Cc: Phillip Lougher <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Evgeniy Dushistov <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Andreas Dilger <[email protected]>
Cc: Jamie Lokier <[email protected]>
Cc: Theodore Ts'o <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions