[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / xfs / quota / xfs_quota_priv.h

/*
 * Copyright (c) 2000-2003 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef __XFS_QUOTA_PRIV_H__
#define __XFS_QUOTA_PRIV_H__

/*
 * Number of bmaps that we ask from bmapi when doing a quotacheck.
 * We make this restriction to keep the memory usage to a minimum.
 */
#define XFS_DQITER_MAP_SIZE	10

/* Number of dquots that fit in to a dquot block */
#define XFS_QM_DQPERBLK(mp)	((mp)->m_quotainfo->qi_dqperchunk)

#define XFS_DQ_IS_ADDEDTO_TRX(t, d)	((d)->q_transp == (t))

#define XFS_QI_MPLRECLAIMS(mp)	((mp)->m_quotainfo->qi_dqreclaims)
#define XFS_QI_UQIP(mp)		((mp)->m_quotainfo->qi_uquotaip)
#define XFS_QI_GQIP(mp)		((mp)->m_quotainfo->qi_gquotaip)
#define XFS_QI_DQCHUNKLEN(mp)	((mp)->m_quotainfo->qi_dqchunklen)
#define XFS_QI_BTIMELIMIT(mp)	((mp)->m_quotainfo->qi_btimelimit)
#define XFS_QI_RTBTIMELIMIT(mp) ((mp)->m_quotainfo->qi_rtbtimelimit)
#define XFS_QI_ITIMELIMIT(mp)	((mp)->m_quotainfo->qi_itimelimit)
#define XFS_QI_BWARNLIMIT(mp)	((mp)->m_quotainfo->qi_bwarnlimit)
#define XFS_QI_RTBWARNLIMIT(mp)	((mp)->m_quotainfo->qi_rtbwarnlimit)
#define XFS_QI_IWARNLIMIT(mp)	((mp)->m_quotainfo->qi_iwarnlimit)
#define XFS_QI_QOFFLOCK(mp)	((mp)->m_quotainfo->qi_quotaofflock)

#define XFS_QI_MPL_LIST(mp)	((mp)->m_quotainfo->qi_dqlist)
#define XFS_QI_MPLNEXT(mp)	((mp)->m_quotainfo->qi_dqlist.qh_next)
#define XFS_QI_MPLNDQUOTS(mp)	((mp)->m_quotainfo->qi_dqlist.qh_nelems)

#define xfs_qm_mplist_lock(mp) \
	mutex_lock(&(XFS_QI_MPL_LIST(mp).qh_lock))
#define xfs_qm_mplist_nowait(mp) \
	mutex_trylock(&(XFS_QI_MPL_LIST(mp).qh_lock))
#define xfs_qm_mplist_unlock(mp) \
	mutex_unlock(&(XFS_QI_MPL_LIST(mp).qh_lock))
#define XFS_QM_IS_MPLIST_LOCKED(mp) \
	mutex_is_locked(&(XFS_QI_MPL_LIST(mp).qh_lock))

#define xfs_qm_freelist_lock(qm) \
	mutex_lock(&((qm)->qm_dqfreelist.qh_lock))
#define xfs_qm_freelist_lock_nowait(qm) \
	mutex_trylock(&((qm)->qm_dqfreelist.qh_lock))
#define xfs_qm_freelist_unlock(qm) \
	mutex_unlock(&((qm)->qm_dqfreelist.qh_lock))

/*
 * Hash into a bucket in the dquot hash table, based on <mp, id>.
 */
#define XFS_DQ_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
				 (__psunsigned_t)(id)) & \
				(xfs_Gqm->qm_dqhashmask - 1))
#define XFS_DQ_HASH(mp, id, type)   (type == XFS_DQ_USER ? \
				     (xfs_Gqm->qm_usr_dqhtable + \
				      XFS_DQ_HASHVAL(mp, id)) : \
				     (xfs_Gqm->qm_grp_dqhtable + \
				      XFS_DQ_HASHVAL(mp, id)))
#define XFS_IS_DQTYPE_ON(mp, type)   (type == XFS_DQ_USER ? \
					XFS_IS_UQUOTA_ON(mp) : \
					XFS_IS_OQUOTA_ON(mp))
#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
	!dqp->q_core.d_blk_hardlimit && \
	!dqp->q_core.d_blk_softlimit && \
	!dqp->q_core.d_rtb_hardlimit && \
	!dqp->q_core.d_rtb_softlimit && \
	!dqp->q_core.d_ino_hardlimit && \
	!dqp->q_core.d_ino_softlimit && \
	!dqp->q_core.d_bcount && \
	!dqp->q_core.d_rtbcount && \
	!dqp->q_core.d_icount)

#define HL_PREVP	dq_hashlist.ql_prevp
#define HL_NEXT		dq_hashlist.ql_next
#define MPL_PREVP	dq_mplist.ql_prevp
#define MPL_NEXT	dq_mplist.ql_next


#define _LIST_REMOVE(h, dqp, PVP, NXT)				\
	{							\
		 xfs_dquot_t *d;				\
		 if (((d) = (dqp)->NXT))				\
			 (d)->PVP = (dqp)->PVP;			\
		 *((dqp)->PVP) = d;				\
		 (dqp)->NXT = NULL;				\
		 (dqp)->PVP = NULL;				\
		 (h)->qh_version++;				\
		 (h)->qh_nelems--;				\
	}

#define _LIST_INSERT(h, dqp, PVP, NXT)				\
	{							\
		 xfs_dquot_t *d;				\
		 if (((d) = (h)->qh_next))			\
			 (d)->PVP = &((dqp)->NXT);		\
		 (dqp)->NXT = d;				\
		 (dqp)->PVP = &((h)->qh_next);			\
		 (h)->qh_next = dqp;				\
		 (h)->qh_version++;				\
		 (h)->qh_nelems++;				\
	 }

#define FOREACH_DQUOT_IN_MP(dqp, mp) \
	for ((dqp) = XFS_QI_MPLNEXT(mp); (dqp) != NULL; (dqp) = (dqp)->MPL_NEXT)

#define FOREACH_DQUOT_IN_FREELIST(dqp, qlist)	\
for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
     (dqp) = (dqp)->dq_flnext)

#define XQM_HASHLIST_INSERT(h, dqp)	\
	 _LIST_INSERT(h, dqp, HL_PREVP, HL_NEXT)

#define XQM_FREELIST_INSERT(h, dqp)	\
	 xfs_qm_freelist_append(h, dqp)

#define XQM_MPLIST_INSERT(h, dqp)	\
	 _LIST_INSERT(h, dqp, MPL_PREVP, MPL_NEXT)

#define XQM_HASHLIST_REMOVE(h, dqp)	\
	 _LIST_REMOVE(h, dqp, HL_PREVP, HL_NEXT)
#define XQM_FREELIST_REMOVE(dqp)	\
	 xfs_qm_freelist_unlink(dqp)
#define XQM_MPLIST_REMOVE(h, dqp)	\
	{ _LIST_REMOVE(h, dqp, MPL_PREVP, MPL_NEXT); \
	  XFS_QI_MPLRECLAIMS((dqp)->q_mount)++; }

#define XFS_DQ_IS_LOGITEM_INITD(dqp)	((dqp)->q_logitem.qli_dquot == (dqp))

#define XFS_QM_DQP_TO_DQACCT(tp, dqp)	(XFS_QM_ISUDQ(dqp) ? \
					 (tp)->t_dqinfo->dqa_usrdquots : \
					 (tp)->t_dqinfo->dqa_grpdquots)
#define XFS_IS_SUSER_DQUOT(dqp)		\
	(!((dqp)->q_core.d_id))

#define DQFLAGTO_TYPESTR(d)	(((d)->dq_flags & XFS_DQ_USER) ? "USR" : \
				 (((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : \
				 (((d)->dq_flags & XFS_DQ_PROJ) ? "PRJ":"???")))

#endif	/* __XFS_QUOTA_PRIV_H__ */
Commit	Line	Data
1da177e4	1	/*
4ce3121f NS	2	* Copyright (c) 2000-2003 Silicon Graphics, Inc.
4ce3121f NS	3	* All Rights Reserved.
1da177e4	4	*
4ce3121f NS	5	* This program is free software; you can redistribute it and/or
4ce3121f NS	6	* modify it under the terms of the GNU General Public License as
1da177e4 LT	7	* published by the Free Software Foundation.
1da177e4 LT	8	*
4ce3121f NS	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
1da177e4	13	*
4ce3121f NS	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1da177e4 LT	17	*/
	18	#ifndef __XFS_QUOTA_PRIV_H__
	19	#define __XFS_QUOTA_PRIV_H__
	20
	21	/*
	22	* Number of bmaps that we ask from bmapi when doing a quotacheck.
	23	* We make this restriction to keep the memory usage to a minimum.
	24	*/
	25	#define XFS_DQITER_MAP_SIZE 10
	26
	27	/* Number of dquots that fit in to a dquot block */
	28	#define XFS_QM_DQPERBLK(mp) ((mp)->m_quotainfo->qi_dqperchunk)
	29
1da177e4 LT	30	#define XFS_DQ_IS_ADDEDTO_TRX(t, d) ((d)->q_transp == (t))
	31
	32	#define XFS_QI_MPLRECLAIMS(mp) ((mp)->m_quotainfo->qi_dqreclaims)
	33	#define XFS_QI_UQIP(mp) ((mp)->m_quotainfo->qi_uquotaip)
	34	#define XFS_QI_GQIP(mp) ((mp)->m_quotainfo->qi_gquotaip)
	35	#define XFS_QI_DQCHUNKLEN(mp) ((mp)->m_quotainfo->qi_dqchunklen)
	36	#define XFS_QI_BTIMELIMIT(mp) ((mp)->m_quotainfo->qi_btimelimit)
	37	#define XFS_QI_RTBTIMELIMIT(mp) ((mp)->m_quotainfo->qi_rtbtimelimit)
	38	#define XFS_QI_ITIMELIMIT(mp) ((mp)->m_quotainfo->qi_itimelimit)
	39	#define XFS_QI_BWARNLIMIT(mp) ((mp)->m_quotainfo->qi_bwarnlimit)
06d10dd9	40	#define XFS_QI_RTBWARNLIMIT(mp) ((mp)->m_quotainfo->qi_rtbwarnlimit)
1da177e4 LT	41	#define XFS_QI_IWARNLIMIT(mp) ((mp)->m_quotainfo->qi_iwarnlimit)
	42	#define XFS_QI_QOFFLOCK(mp) ((mp)->m_quotainfo->qi_quotaofflock)
	43
	44	#define XFS_QI_MPL_LIST(mp) ((mp)->m_quotainfo->qi_dqlist)
1da177e4 LT	45	#define XFS_QI_MPLNEXT(mp) ((mp)->m_quotainfo->qi_dqlist.qh_next)
	46	#define XFS_QI_MPLNDQUOTS(mp) ((mp)->m_quotainfo->qi_dqlist.qh_nelems)
	47
c9a192dc CH	48	#define xfs_qm_mplist_lock(mp) \
	49	mutex_lock(&(XFS_QI_MPL_LIST(mp).qh_lock))
	50	#define xfs_qm_mplist_nowait(mp) \
	51	mutex_trylock(&(XFS_QI_MPL_LIST(mp).qh_lock))
	52	#define xfs_qm_mplist_unlock(mp) \
	53	mutex_unlock(&(XFS_QI_MPL_LIST(mp).qh_lock))
	54	#define XFS_QM_IS_MPLIST_LOCKED(mp) \
	55	mutex_is_locked(&(XFS_QI_MPL_LIST(mp).qh_lock))
1da177e4	56
c9a192dc CH	57	#define xfs_qm_freelist_lock(qm) \
	58	mutex_lock(&((qm)->qm_dqfreelist.qh_lock))
	59	#define xfs_qm_freelist_lock_nowait(qm) \
	60	mutex_trylock(&((qm)->qm_dqfreelist.qh_lock))
	61	#define xfs_qm_freelist_unlock(qm) \
	62	mutex_unlock(&((qm)->qm_dqfreelist.qh_lock))
1da177e4 LT	63
	64	/*
	65	* Hash into a bucket in the dquot hash table, based on <mp, id>.
	66	*/
	67	#define XFS_DQ_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
	68	(__psunsigned_t)(id)) & \
	69	(xfs_Gqm->qm_dqhashmask - 1))
	70	#define XFS_DQ_HASH(mp, id, type) (type == XFS_DQ_USER ? \
	71	(xfs_Gqm->qm_usr_dqhtable + \
	72	XFS_DQ_HASHVAL(mp, id)) : \
	73	(xfs_Gqm->qm_grp_dqhtable + \
	74	XFS_DQ_HASHVAL(mp, id)))
	75	#define XFS_IS_DQTYPE_ON(mp, type) (type == XFS_DQ_USER ? \
c8ad20ff NS	76	XFS_IS_UQUOTA_ON(mp) : \
c8ad20ff NS	77	XFS_IS_OQUOTA_ON(mp))
1da177e4 LT	78	#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \
	79	!dqp->q_core.d_blk_hardlimit && \
	80	!dqp->q_core.d_blk_softlimit && \
	81	!dqp->q_core.d_rtb_hardlimit && \
	82	!dqp->q_core.d_rtb_softlimit && \
	83	!dqp->q_core.d_ino_hardlimit && \
	84	!dqp->q_core.d_ino_softlimit && \
	85	!dqp->q_core.d_bcount && \
	86	!dqp->q_core.d_rtbcount && \
	87	!dqp->q_core.d_icount)
	88
	89	#define HL_PREVP dq_hashlist.ql_prevp
	90	#define HL_NEXT dq_hashlist.ql_next
	91	#define MPL_PREVP dq_mplist.ql_prevp
	92	#define MPL_NEXT dq_mplist.ql_next
	93
	94
	95	#define _LIST_REMOVE(h, dqp, PVP, NXT) \
	96	{ \
	97	xfs_dquot_t *d; \
	98	if (((d) = (dqp)->NXT)) \
	99	(d)->PVP = (dqp)->PVP; \
	100	*((dqp)->PVP) = d; \
	101	(dqp)->NXT = NULL; \
	102	(dqp)->PVP = NULL; \
	103	(h)->qh_version++; \
	104	(h)->qh_nelems--; \
	105	}
	106
	107	#define _LIST_INSERT(h, dqp, PVP, NXT) \
	108	{ \
	109	xfs_dquot_t *d; \
	110	if (((d) = (h)->qh_next)) \
	111	(d)->PVP = &((dqp)->NXT); \
	112	(dqp)->NXT = d; \
	113	(dqp)->PVP = &((h)->qh_next); \
	114	(h)->qh_next = dqp; \
	115	(h)->qh_version++; \
	116	(h)->qh_nelems++; \
	117	}
	118
	119	#define FOREACH_DQUOT_IN_MP(dqp, mp) \
	120	for ((dqp) = XFS_QI_MPLNEXT(mp); (dqp) != NULL; (dqp) = (dqp)->MPL_NEXT)
	121
	122	#define FOREACH_DQUOT_IN_FREELIST(dqp, qlist) \
	123	for ((dqp) = (qlist)->qh_next; (dqp) != (xfs_dquot_t *)(qlist); \
	124	(dqp) = (dqp)->dq_flnext)
	125
	126	#define XQM_HASHLIST_INSERT(h, dqp) \
	127	_LIST_INSERT(h, dqp, HL_PREVP, HL_NEXT)
	128
	129	#define XQM_FREELIST_INSERT(h, dqp) \
	130	xfs_qm_freelist_append(h, dqp)
	131
	132	#define XQM_MPLIST_INSERT(h, dqp) \
	133	_LIST_INSERT(h, dqp, MPL_PREVP, MPL_NEXT)
	134
	135	#define XQM_HASHLIST_REMOVE(h, dqp) \
	136	_LIST_REMOVE(h, dqp, HL_PREVP, HL_NEXT)
	137	#define XQM_FREELIST_REMOVE(dqp) \
	138	xfs_qm_freelist_unlink(dqp)
	139	#define XQM_MPLIST_REMOVE(h, dqp) \
	140	{ _LIST_REMOVE(h, dqp, MPL_PREVP, MPL_NEXT); \
	141	XFS_QI_MPLRECLAIMS((dqp)->q_mount)++; }
142
143	#define XFS_DQ_IS_LOGITEM_INITD(dqp) ((dqp)->q_logitem.qli_dquot == (dqp))
144
145	#define XFS_QM_DQP_TO_DQACCT(tp, dqp) (XFS_QM_ISUDQ(dqp) ? \
146	(tp)->t_dqinfo->dqa_usrdquots : \
147	(tp)->t_dqinfo->dqa_grpdquots)
148	#define XFS_IS_SUSER_DQUOT(dqp) \
149	(!((dqp)->q_core.d_id))
150
1da177e4	151	#define DQFLAGTO_TYPESTR(d) (((d)->dq_flags & XFS_DQ_USER) ? "USR" : \
c8ad20ff NS	152	(((d)->dq_flags & XFS_DQ_GROUP) ? "GRP" : \
c8ad20ff NS	153	(((d)->dq_flags & XFS_DQ_PROJ) ? "PRJ":"???")))
1da177e4 LT	154
1da177e4 LT	155	#endif /* __XFS_QUOTA_PRIV_H__ */