UBIFS: fix writing uncompressed files

UBIFS does not disable compression if ui->flags is non-zero, e.g.
if the file has "sync" flag. This is because of the typo which
is fixed by this patch. The patch also adds a couple of useful
debugging prints.
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>

fs/ubifs/ioctl.c

@@ -154,6 +154,7 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case FS_IOC_GETFLAGS:
 		flags = ubifs2ioctl(ubifs_inode(inode)->flags);
 
+		dbg_gen("get flags: %#x, i_flags %#x", flags, inode->i_flags);
 		return put_user(flags, (int __user *) arg);
 
 	case FS_IOC_SETFLAGS: {
@@ -176,6 +177,7 @@ long ubifs_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		err = mnt_want_write(file->f_path.mnt);
 		if (err)
 			return err;
+		dbg_gen("set flags: %#x, i_flags %#x", flags, inode->i_flags);
 		err = setflags(inode, flags);
 		mnt_drop_write(file->f_path.mnt);
 		return err;

fs/ubifs/journal.c

@@ -704,7 +704,7 @@ int ubifs_jnl_write_data(struct ubifs_info *c, const struct inode *inode,
 	data->size = cpu_to_le32(len);
 	zero_data_node_unused(data);
 
-	if (!(ui->flags && UBIFS_COMPR_FL))
+	if (!(ui->flags & UBIFS_COMPR_FL))
 		/* Compression is disabled for this inode */
 		compr_type = UBIFS_COMPR_NONE;
 	else