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										 |  |  | /*
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										 |  |  |  * Copyright (c) 2000-2005 Silicon Graphics, Inc. | 
					
						
							|  |  |  |  * All Rights Reserved. | 
					
						
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										 |  |  |  * | 
					
						
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										 |  |  |  * This program is free software; you can redistribute it and/or | 
					
						
							|  |  |  |  * modify it under the terms of the GNU General Public License as | 
					
						
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										 |  |  |  * published by the Free Software Foundation. | 
					
						
							|  |  |  |  * | 
					
						
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										 |  |  |  * 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. | 
					
						
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										 |  |  |  * | 
					
						
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										 |  |  |  * 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 | 
					
						
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										 |  |  |  */ | 
					
						
							|  |  |  | #ifndef __XFS_QUOTA_H__
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							|  |  |  | #define __XFS_QUOTA_H__
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										 |  |  | #include "xfs_quota_defs.h"
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										 |  |  | /*
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										 |  |  |  * Kernel only quota definitions and functions | 
					
						
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										 |  |  |  */ | 
					
						
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										 |  |  | struct xfs_trans; | 
					
						
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										 |  |  | 
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							|  |  |  | /*
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							|  |  |  |  * This check is done typically without holding the inode lock; | 
					
						
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										 |  |  |  * that may seem racy, but it is harmless in the context that it is used. | 
					
						
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										 |  |  |  * The inode cannot go inactive as long a reference is kept, and | 
					
						
							|  |  |  |  * therefore if dquot(s) were attached, they'll stay consistent. | 
					
						
							|  |  |  |  * If, for example, the ownership of the inode changes while | 
					
						
							|  |  |  |  * we didn't have the inode locked, the appropriate dquot(s) will be | 
					
						
							|  |  |  |  * attached atomically. | 
					
						
							|  |  |  |  */ | 
					
						
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										 |  |  | #define XFS_NOT_DQATTACHED(mp, ip) \
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							|  |  |  | 	((XFS_IS_UQUOTA_ON(mp) && (ip)->i_udquot == NULL) || \ | 
					
						
							|  |  |  | 	 (XFS_IS_GQUOTA_ON(mp) && (ip)->i_gdquot == NULL) || \ | 
					
						
							|  |  |  | 	 (XFS_IS_PQUOTA_ON(mp) && (ip)->i_pdquot == NULL)) | 
					
						
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										 |  |  | #define XFS_QM_NEED_QUOTACHECK(mp) \
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							|  |  |  | 	((XFS_IS_UQUOTA_ON(mp) && \ | 
					
						
							|  |  |  | 		(mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \ | 
					
						
							|  |  |  | 	 (XFS_IS_GQUOTA_ON(mp) && \ | 
					
						
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										 |  |  | 		(mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \ | 
					
						
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										 |  |  | 	 (XFS_IS_PQUOTA_ON(mp) && \ | 
					
						
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										 |  |  | 		(mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0)) | 
					
						
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							|  |  |  | /*
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							|  |  |  |  * The structure kept inside the xfs_trans_t keep track of dquot changes | 
					
						
							|  |  |  |  * within a transaction and apply them later. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | typedef struct xfs_dqtrx { | 
					
						
							|  |  |  | 	struct xfs_dquot *qt_dquot;	  /* the dquot this refers to */ | 
					
						
							|  |  |  | 	ulong		qt_blk_res;	  /* blks reserved on a dquot */ | 
					
						
							|  |  |  | 	ulong		qt_blk_res_used;  /* blks used from the reservation */ | 
					
						
							|  |  |  | 	ulong		qt_ino_res;	  /* inode reserved on a dquot */ | 
					
						
							|  |  |  | 	ulong		qt_ino_res_used;  /* inodes used from the reservation */ | 
					
						
							|  |  |  | 	long		qt_bcount_delta;  /* dquot blk count changes */ | 
					
						
							|  |  |  | 	long		qt_delbcnt_delta; /* delayed dquot blk count changes */ | 
					
						
							|  |  |  | 	long		qt_icount_delta;  /* dquot inode count changes */ | 
					
						
							|  |  |  | 	ulong		qt_rtblk_res;	  /* # blks reserved on a dquot */ | 
					
						
							|  |  |  | 	ulong		qt_rtblk_res_used;/* # blks used from reservation */ | 
					
						
							|  |  |  | 	long		qt_rtbcount_delta;/* dquot realtime blk changes */ | 
					
						
							|  |  |  | 	long		qt_delrtb_delta;  /* delayed RT blk count changes */ | 
					
						
							|  |  |  | } xfs_dqtrx_t; | 
					
						
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										 |  |  | #ifdef CONFIG_XFS_QUOTA
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							|  |  |  | extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *); | 
					
						
							|  |  |  | extern void xfs_trans_free_dqinfo(struct xfs_trans *); | 
					
						
							|  |  |  | extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *, | 
					
						
							|  |  |  | 		uint, long); | 
					
						
							|  |  |  | extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *); | 
					
						
							|  |  |  | extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *); | 
					
						
							|  |  |  | extern int xfs_trans_reserve_quota_nblks(struct xfs_trans *, | 
					
						
							|  |  |  | 		struct xfs_inode *, long, long, uint); | 
					
						
							|  |  |  | extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *, | 
					
						
							|  |  |  | 		struct xfs_mount *, struct xfs_dquot *, | 
					
						
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										 |  |  | 		struct xfs_dquot *, struct xfs_dquot *, long, long, uint); | 
					
						
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										 |  |  | extern int xfs_qm_vop_dqalloc(struct xfs_inode *, xfs_dqid_t, xfs_dqid_t, | 
					
						
							|  |  |  | 		prid_t, uint, struct xfs_dquot **, struct xfs_dquot **, | 
					
						
							|  |  |  | 		struct xfs_dquot **); | 
					
						
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										 |  |  | extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *, | 
					
						
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										 |  |  | 		struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *); | 
					
						
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										 |  |  | extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **); | 
					
						
							|  |  |  | extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *, | 
					
						
							|  |  |  | 		struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *); | 
					
						
							|  |  |  | extern int xfs_qm_vop_chown_reserve(struct xfs_trans *, struct xfs_inode *, | 
					
						
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										 |  |  | 		struct xfs_dquot *, struct xfs_dquot *, | 
					
						
							|  |  |  | 		struct xfs_dquot *, uint); | 
					
						
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										 |  |  | extern int xfs_qm_dqattach(struct xfs_inode *, uint); | 
					
						
							|  |  |  | extern int xfs_qm_dqattach_locked(struct xfs_inode *, uint); | 
					
						
							|  |  |  | extern void xfs_qm_dqdetach(struct xfs_inode *); | 
					
						
							|  |  |  | extern void xfs_qm_dqrele(struct xfs_dquot *); | 
					
						
							|  |  |  | extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *); | 
					
						
							|  |  |  | extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *); | 
					
						
							|  |  |  | extern void xfs_qm_mount_quotas(struct xfs_mount *); | 
					
						
							|  |  |  | extern void xfs_qm_unmount(struct xfs_mount *); | 
					
						
							|  |  |  | extern void xfs_qm_unmount_quotas(struct xfs_mount *); | 
					
						
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							|  |  |  | #else
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										 |  |  | static inline int | 
					
						
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										 |  |  | xfs_qm_vop_dqalloc(struct xfs_inode *ip, xfs_dqid_t uid, xfs_dqid_t gid, | 
					
						
							|  |  |  | 		prid_t prid, uint flags, struct xfs_dquot **udqp, | 
					
						
							|  |  |  | 		struct xfs_dquot **gdqp, struct xfs_dquot **pdqp) | 
					
						
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										 |  |  | { | 
					
						
							|  |  |  | 	*udqp = NULL; | 
					
						
							|  |  |  | 	*gdqp = NULL; | 
					
						
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										 |  |  | 	*pdqp = NULL; | 
					
						
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										 |  |  | 	return 0; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | #define xfs_trans_dup_dqinfo(tp, tp2)
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							|  |  |  | #define xfs_trans_free_dqinfo(tp)
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							|  |  |  | #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
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							|  |  |  | #define xfs_trans_apply_dquot_deltas(tp)
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							|  |  |  | #define xfs_trans_unreserve_and_mod_dquots(tp)
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										 |  |  | static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, | 
					
						
							|  |  |  | 		struct xfs_inode *ip, long nblks, long ninos, uint flags) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | 	return 0; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp, | 
					
						
							|  |  |  | 		struct xfs_mount *mp, struct xfs_dquot *udqp, | 
					
						
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										 |  |  | 		struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, | 
					
						
							|  |  |  | 		long nblks, long nions, uint flags) | 
					
						
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										 |  |  | { | 
					
						
							|  |  |  | 	return 0; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | #define xfs_qm_vop_create_dqattach(tp, ip, u, g, p)
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										 |  |  | #define xfs_qm_vop_rename_dqattach(it)					(0)
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							|  |  |  | #define xfs_qm_vop_chown(tp, ip, old, new)				(NULL)
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										 |  |  | #define xfs_qm_vop_chown_reserve(tp, ip, u, g, p, fl)			(0)
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										 |  |  | #define xfs_qm_dqattach(ip, fl)						(0)
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							|  |  |  | #define xfs_qm_dqattach_locked(ip, fl)					(0)
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							|  |  |  | #define xfs_qm_dqdetach(ip)
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							|  |  |  | #define xfs_qm_dqrele(d)
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							|  |  |  | #define xfs_qm_statvfs(ip, s)
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							|  |  |  | #define xfs_qm_newmount(mp, a, b)					(0)
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							|  |  |  | #define xfs_qm_mount_quotas(mp)
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							|  |  |  | #define xfs_qm_unmount(mp)
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										 |  |  | #define xfs_qm_unmount_quotas(mp)
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										 |  |  | #endif /* CONFIG_XFS_QUOTA */
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							|  |  |  | #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \
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							|  |  |  | 	xfs_trans_reserve_quota_nblks(tp, ip, -(nblks), -(ninos), flags) | 
					
						
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										 |  |  | #define xfs_trans_reserve_quota(tp, mp, ud, gd, pd, nb, ni, f) \
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							|  |  |  | 	xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, pd, nb, ni, \ | 
					
						
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										 |  |  | 				f | XFS_QMOPT_RES_REGBLKS) | 
					
						
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										 |  |  | extern int xfs_mount_reset_sbqflags(struct xfs_mount *); | 
					
						
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										 |  |  | 
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							|  |  |  | #endif	/* __XFS_QUOTA_H__ */
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