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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.4 * All Rights Reserved.5 */6#ifndef __XFS_QM_H__7#define __XFS_QM_H__8 9#include "xfs_dquot_item.h"10#include "xfs_dquot.h"11 12struct xfs_inode;13 14extern struct kmem_cache *xfs_dqtrx_cache;15 16/*17 * Number of bmaps that we ask from bmapi when doing a quotacheck.18 * We make this restriction to keep the memory usage to a minimum.19 */20#define XFS_DQITER_MAP_SIZE 1021 22#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \23 !dqp->q_blk.hardlimit && \24 !dqp->q_blk.softlimit && \25 !dqp->q_rtb.hardlimit && \26 !dqp->q_rtb.softlimit && \27 !dqp->q_ino.hardlimit && \28 !dqp->q_ino.softlimit && \29 !dqp->q_blk.count && \30 !dqp->q_rtb.count && \31 !dqp->q_ino.count)32 33struct xfs_quota_limits {34 xfs_qcnt_t hard; /* default hard limit */35 xfs_qcnt_t soft; /* default soft limit */36 time64_t time; /* limit for timers */37};38 39/* Defaults for each quota type: time limits, warn limits, usage limits */40struct xfs_def_quota {41 struct xfs_quota_limits blk;42 struct xfs_quota_limits ino;43 struct xfs_quota_limits rtb;44};45 46/*47 * Various quota information for individual filesystems.48 * The mount structure keeps a pointer to this.49 */50struct xfs_quotainfo {51 struct radix_tree_root qi_uquota_tree;52 struct radix_tree_root qi_gquota_tree;53 struct radix_tree_root qi_pquota_tree;54 struct mutex qi_tree_lock;55 struct xfs_inode *qi_uquotaip; /* user quota inode */56 struct xfs_inode *qi_gquotaip; /* group quota inode */57 struct xfs_inode *qi_pquotaip; /* project quota inode */58 struct list_lru qi_lru;59 int qi_dquots;60 struct mutex qi_quotaofflock;/* to serialize quotaoff */61 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */62 uint qi_dqperchunk; /* # ondisk dq in above chunk */63 struct xfs_def_quota qi_usr_default;64 struct xfs_def_quota qi_grp_default;65 struct xfs_def_quota qi_prj_default;66 struct shrinker *qi_shrinker;67 68 /* Minimum and maximum quota expiration timestamp values. */69 time64_t qi_expiry_min;70 time64_t qi_expiry_max;71 72 /* Hook to feed quota counter updates to an active online repair. */73 struct xfs_hooks qi_mod_ino_dqtrx_hooks;74 struct xfs_hooks qi_apply_dqtrx_hooks;75};76 77static inline struct radix_tree_root *78xfs_dquot_tree(79 struct xfs_quotainfo *qi,80 xfs_dqtype_t type)81{82 switch (type) {83 case XFS_DQTYPE_USER:84 return &qi->qi_uquota_tree;85 case XFS_DQTYPE_GROUP:86 return &qi->qi_gquota_tree;87 case XFS_DQTYPE_PROJ:88 return &qi->qi_pquota_tree;89 default:90 ASSERT(0);91 }92 return NULL;93}94 95static inline struct xfs_inode *96xfs_quota_inode(struct xfs_mount *mp, xfs_dqtype_t type)97{98 switch (type) {99 case XFS_DQTYPE_USER:100 return mp->m_quotainfo->qi_uquotaip;101 case XFS_DQTYPE_GROUP:102 return mp->m_quotainfo->qi_gquotaip;103 case XFS_DQTYPE_PROJ:104 return mp->m_quotainfo->qi_pquotaip;105 default:106 ASSERT(0);107 }108 return NULL;109}110 111/*112 * Parameters for tracking dqtrx changes on behalf of an inode. The hook113 * function arg parameter is the field being updated.114 */115struct xfs_mod_ino_dqtrx_params {116 uintptr_t tx_id;117 xfs_ino_t ino;118 xfs_dqtype_t q_type;119 xfs_dqid_t q_id;120 int64_t delta;121};122 123extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp,124 uint field, int64_t delta);125extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *);126extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *);127 128/*129 * We keep the usr, grp, and prj dquots separately so that locking will be130 * easier to do at commit time. All transactions that we know of at this point131 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.132 */133enum {134 XFS_QM_TRANS_USR = 0,135 XFS_QM_TRANS_GRP,136 XFS_QM_TRANS_PRJ,137 XFS_QM_TRANS_DQTYPES138};139#define XFS_QM_TRANS_MAXDQS 5140struct xfs_dquot_acct {141 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS];142};143 144/*145 * Users are allowed to have a usage exceeding their softlimit for146 * a period this long.147 */148#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */149#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */150#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */151 152extern void xfs_qm_destroy_quotainfo(struct xfs_mount *);153 154/* quota ops */155extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);156extern int xfs_qm_scall_getquota(struct xfs_mount *mp,157 xfs_dqid_t id,158 xfs_dqtype_t type,159 struct qc_dqblk *dst);160extern int xfs_qm_scall_getquota_next(struct xfs_mount *mp,161 xfs_dqid_t *id,162 xfs_dqtype_t type,163 struct qc_dqblk *dst);164extern int xfs_qm_scall_setqlim(struct xfs_mount *mp,165 xfs_dqid_t id,166 xfs_dqtype_t type,167 struct qc_dqblk *newlim);168extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint);169extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint);170 171static inline struct xfs_def_quota *172xfs_get_defquota(struct xfs_quotainfo *qi, xfs_dqtype_t type)173{174 switch (type) {175 case XFS_DQTYPE_USER:176 return &qi->qi_usr_default;177 case XFS_DQTYPE_GROUP:178 return &qi->qi_grp_default;179 case XFS_DQTYPE_PROJ:180 return &qi->qi_prj_default;181 default:182 ASSERT(0);183 return NULL;184 }185}186 187int xfs_qm_qino_load(struct xfs_mount *mp, xfs_dqtype_t type,188 struct xfs_inode **ipp);189 190#endif /* __XFS_QM_H__ */191