reiserfs: Don't use MAXQUOTAS value

MAXQUOTAS value defines maximum number of quota types VFS supports.
This isn't necessarily the number of types reiserfs supports and with
addition of project quotas these two numbers stop matching. So make
reiserfs use its private definition.

CC: reiserfs-devel@vger.kernel.org
CC: Jeff Mahoney <jeffm@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/reiserfs/reiserfs.h

@@ -506,6 +506,9 @@ typedef struct reiserfs_proc_info_data {
 } reiserfs_proc_info_data_t;
 #endif
 
+/* Number of quota types we support */
+#define REISERFS_MAXQUOTAS 2
+
 /* reiserfs union of in-core super block data */
 struct reiserfs_sb_info {
 	/* Buffer containing the super block */
@@ -615,7 +618,7 @@ struct reiserfs_sb_info {
 	spinlock_t old_work_lock;     /* protects old_work and work_queued */
 
 #ifdef CONFIG_QUOTA
-	char *s_qf_names[MAXQUOTAS];
+	char *s_qf_names[REISERFS_MAXQUOTAS];
 	int s_jquota_fmt;
 #endif
 	char *s_jdev;		/* Stored jdev for mount option showing */