fs/minix: return f_fsid for statfs(2)

Make minix file system return f_fsid info for statfs(2). Signed-off-by: Coly Li <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kishon · Apr 3, 2009 · 054475d · 054475d
1 parent 2430c4d
commit 054475d
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
@@ -321,15 +321,20 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
 
 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
-	struct minix_sb_info *sbi = minix_sb(dentry->d_sb);
-	buf->f_type = dentry->d_sb->s_magic;
-	buf->f_bsize = dentry->d_sb->s_blocksize;
+	struct super_block *sb = dentry->d_sb;
+	struct minix_sb_info *sbi = minix_sb(sb);
+	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+	buf->f_type = sb->s_magic;
+	buf->f_bsize = sb->s_blocksize;
 	buf->f_blocks = (sbi->s_nzones - sbi->s_firstdatazone) << sbi->s_log_zone_size;
 	buf->f_bfree = minix_count_free_blocks(sbi);
 	buf->f_bavail = buf->f_bfree;
 	buf->f_files = sbi->s_ninodes;
 	buf->f_ffree = minix_count_free_inodes(sbi);
 	buf->f_namelen = sbi->s_namelen;
+	buf->f_fsid.val[0] = (u32)id;
+	buf->f_fsid.val[1] = (u32)(id >> 32);
+
 	return 0;
 }