ext2: code cleanup by using test_opt() and clear_opt()

Using test_opt() and clear_opt() instead of directly
comparing flag bit of mount option.
Signed-off-by: Chengguang Xu <cgxu519@zoho.com.cn>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext2/super.c

@@ -302,16 +302,16 @@ static int ext2_show_options(struct seq_file *seq, struct dentry *root)
 	if (test_opt(sb, NOBH))
 		seq_puts(seq, ",nobh");
 
-	if (sbi->s_mount_opt & EXT2_MOUNT_USRQUOTA)
+	if (test_opt(sb, USRQUOTA))
 		seq_puts(seq, ",usrquota");
 
-	if (sbi->s_mount_opt & EXT2_MOUNT_GRPQUOTA)
+	if (test_opt(sb, GRPQUOTA))
 		seq_puts(seq, ",grpquota");
 
-	if (sbi->s_mount_opt & EXT2_MOUNT_XIP)
+	if (test_opt(sb, XIP))
 		seq_puts(seq, ",xip");
 
-	if (sbi->s_mount_opt & EXT2_MOUNT_DAX)
+	if (test_opt(sb, DAX))
 		seq_puts(seq, ",dax");
 
 	if (!test_opt(sb, RESERVATION))
@@ -934,8 +934,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	sbi->s_resgid = opts.s_resgid;
 
 	sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
-		((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
-		 SB_POSIXACL : 0);
+		(test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0);
 	sb->s_iflags |= SB_I_CGROUPWB;
 
 	if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV &&
@@ -966,11 +965,11 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 
 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
 
-	if (sbi->s_mount_opt & EXT2_MOUNT_DAX) {
+	if (test_opt(sb, DAX)) {
 		if (!bdev_dax_supported(sb->s_bdev, blocksize)) {
 			ext2_msg(sb, KERN_ERR,
 				"DAX unsupported by block device. Turning off DAX.");
-			sbi->s_mount_opt &= ~EXT2_MOUNT_DAX;
+			clear_opt(sbi->s_mount_opt, DAX);
 		}
 	}
 
@@ -1403,7 +1402,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 	sbi->s_resuid = new_opts.s_resuid;
 	sbi->s_resgid = new_opts.s_resgid;
 	sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
-		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? SB_POSIXACL : 0);
+		(test_opt(sb, POSIX_ACL) ? SB_POSIXACL : 0);
 	spin_unlock(&sbi->s_lock);
 
 	return 0;