/* * Copyright (c) 2000-2005 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_H__ #define __XFS_QUOTA_H__ #include "xfs_quota_defs.h" /* * Kernel only quota definitions and functions */ struct xfs_trans; /* * This check is done typically without holding the inode lock; * that may seem racy, but it is harmless in the context that it is used. * 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. */ #define XFS_NOT_DQATTACHED(mp, ip) \ ((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)) #define XFS_QM_NEED_QUOTACHECK(mp) \ ((XFS_IS_UQUOTA_ON(mp) && \ (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \ (XFS_IS_GQUOTA_ON(mp) && \ (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \ (XFS_IS_PQUOTA_ON(mp) && \ (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0)) /* * 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_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; #ifdef CONFIG_XFS_QUOTA 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 *, struct xfs_dquot *, struct xfs_dquot *, long, long, uint); 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 **); extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *, struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *); 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 *, struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *, uint); 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 *); #else static inline int 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) { *udqp = NULL; *gdqp = NULL; *pdqp = NULL; return 0; } #define xfs_trans_dup_dqinfo(tp, tp2) #define xfs_trans_free_dqinfo(tp) #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) #define xfs_trans_apply_dquot_deltas(tp) #define xfs_trans_unreserve_and_mod_dquots(tp) 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, struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, long nblks, long nions, uint flags) { return 0; } #define xfs_qm_vop_create_dqattach(tp, ip, u, g, p) #define xfs_qm_vop_rename_dqattach(it) (0) #define xfs_qm_vop_chown(tp, ip, old, new) (NULL) #define xfs_qm_vop_chown_reserve(tp, ip, u, g, p, fl) (0) #define xfs_qm_dqattach(ip, fl) (0) #define xfs_qm_dqattach_locked(ip, fl) (0) #define xfs_qm_dqdetach(ip) #define xfs_qm_dqrele(d) #define xfs_qm_statvfs(ip, s) #define xfs_qm_newmount(mp, a, b) (0) #define xfs_qm_mount_quotas(mp) #define xfs_qm_unmount(mp) #define xfs_qm_unmount_quotas(mp) #endif /* CONFIG_XFS_QUOTA */ #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \ xfs_trans_reserve_quota_nblks(tp, ip, -(nblks), -(ninos), flags) #define xfs_trans_reserve_quota(tp, mp, ud, gd, pd, nb, ni, f) \ xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, pd, nb, ni, \ f | XFS_QMOPT_RES_REGBLKS) extern int xfs_mount_reset_sbqflags(struct xfs_mount *); #endif /* __XFS_QUOTA_H__ */ bb0f90d&id2=1001354ca34179f3db924eb66672442a173147dc'>diff)