1. 根目录:
2. fs
3. xfs
4. 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

/*
 * 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_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 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__ */