fs/quota: update quota state flags scheme with project quota flags

Current quota state flags scheme doesn't include project quota and thus
shows all flags after DQUOT_USAGE_ENABLED wrong. Fix this and also add
DQUOT_NOLIST_DIRTY to the scheme.

Link: https://lore.kernel.org/r/1602989814-28922-1-git-send-email-dotdot@yandex-team.ruSigned-off-by: Roman Anufriev <dotdot@yandex-team.ru>
Signed-off-by: Jan Kara <jack@suse.cz>

include/linux/quota.h

@@ -448,17 +448,18 @@ struct quota_format_type {
 };
 
 /**
- * Quota state flags - they actually come in two flavors - for users and groups.
+ * Quota state flags - they come in three flavors - for users, groups and projects.
  *
  * Actual typed flags layout:
- *				USRQUOTA	GRPQUOTA
- *  DQUOT_USAGE_ENABLED		0x0001		0x0002
- *  DQUOT_LIMITS_ENABLED	0x0004		0x0008
- *  DQUOT_SUSPENDED		0x0010		0x0020
+ *				USRQUOTA	GRPQUOTA	PRJQUOTA
+ *  DQUOT_USAGE_ENABLED		0x0001		0x0002		0x0004
+ *  DQUOT_LIMITS_ENABLED	0x0008		0x0010		0x0020
+ *  DQUOT_SUSPENDED		0x0040		0x0080		0x0100
  *
  * Following bits are used for non-typed flags:
- *  DQUOT_QUOTA_SYS_FILE	0x0040
- *  DQUOT_NEGATIVE_USAGE	0x0080
+ *  DQUOT_QUOTA_SYS_FILE	0x0200
+ *  DQUOT_NEGATIVE_USAGE	0x0400
+ *  DQUOT_NOLIST_DIRTY		0x0800
  */
 enum {
 	_DQUOT_USAGE_ENABLED = 0,		/* Track disk usage for users */