fs/omfs: return f_fsid for statfs(2)

Make omfs return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 633e9dc..d79e808 100644 (file)
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -262,14 +262,19 @@ static int omfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
        struct super_block *s = dentry->d_sb;
        struct omfs_sb_info *sbi = OMFS_SB(s);
+       u64 id = huge_encode_dev(s->s_bdev->bd_dev);
+
        buf->f_type = OMFS_MAGIC;
        buf->f_bsize = sbi->s_blocksize;
        buf->f_blocks = sbi->s_num_blocks;
        buf->f_files = sbi->s_num_blocks;
        buf->f_namelen = OMFS_NAMELEN;
+       buf->f_fsid.val[0] = (u32)id;
+       buf->f_fsid.val[1] = (u32)(id >> 32);
 
        buf->f_bfree = buf->f_bavail = buf->f_ffree =
                omfs_count_free(s);
+
        return 0;
 }