1// SPDX-License-Identifier: GPL-2.0 2/* 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_zone *xfs_qm_dqtrxzone; 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 10 21 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 xfs_qwarncnt_t warn; /* limit for warnings */ 38}; 39 40/* Defaults for each quota type: time limits, warn limits, usage limits */ 41struct xfs_def_quota { 42 struct xfs_quota_limits blk; 43 struct xfs_quota_limits ino; 44 struct xfs_quota_limits rtb; 45}; 46 47/* 48 * Various quota information for individual filesystems. 49 * The mount structure keeps a pointer to this. 50 */ 51struct xfs_quotainfo { 52 struct radix_tree_root qi_uquota_tree; 53 struct radix_tree_root qi_gquota_tree; 54 struct radix_tree_root qi_pquota_tree; 55 struct mutex qi_tree_lock; 56 struct xfs_inode *qi_uquotaip; /* user quota inode */ 57 struct xfs_inode *qi_gquotaip; /* group quota inode */ 58 struct xfs_inode *qi_pquotaip; /* project quota inode */ 59 struct list_lru qi_lru; 60 int qi_dquots; 61 struct mutex qi_quotaofflock;/* to serialize quotaoff */ 62 xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */ 63 uint qi_dqperchunk; /* # ondisk dq in above chunk */ 64 struct xfs_def_quota qi_usr_default; 65 struct xfs_def_quota qi_grp_default; 66 struct xfs_def_quota qi_prj_default; 67 struct shrinker qi_shrinker; 68 69 /* Minimum and maximum quota expiration timestamp values. */ 70 time64_t qi_expiry_min; 71 time64_t qi_expiry_max; 72}; 73 74static inline struct radix_tree_root * 75xfs_dquot_tree( 76 struct xfs_quotainfo *qi, 77 xfs_dqtype_t type) 78{ 79 switch (type) { 80 case XFS_DQTYPE_USER: 81 return &qi->qi_uquota_tree; 82 case XFS_DQTYPE_GROUP: 83 return &qi->qi_gquota_tree; 84 case XFS_DQTYPE_PROJ: 85 return &qi->qi_pquota_tree; 86 default: 87 ASSERT(0); 88 } 89 return NULL; 90} 91 92static inline struct xfs_inode * 93xfs_quota_inode(struct xfs_mount *mp, xfs_dqtype_t type) 94{ 95 switch (type) { 96 case XFS_DQTYPE_USER: 97 return mp->m_quotainfo->qi_uquotaip; 98 case XFS_DQTYPE_GROUP: 99 return mp->m_quotainfo->qi_gquotaip; 100 case XFS_DQTYPE_PROJ: 101 return mp->m_quotainfo->qi_pquotaip; 102 default: 103 ASSERT(0); 104 } 105 return NULL; 106} 107 108extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp, 109 uint field, int64_t delta); 110extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *); 111extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *); 112 113/* 114 * We keep the usr, grp, and prj dquots separately so that locking will be 115 * easier to do at commit time. All transactions that we know of at this point 116 * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value. 117 */ 118enum { 119 XFS_QM_TRANS_USR = 0, 120 XFS_QM_TRANS_GRP, 121 XFS_QM_TRANS_PRJ, 122 XFS_QM_TRANS_DQTYPES 123}; 124#define XFS_QM_TRANS_MAXDQS 2 125struct xfs_dquot_acct { 126 struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS]; 127}; 128 129/* 130 * Users are allowed to have a usage exceeding their softlimit for 131 * a period this long. 132 */ 133#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */ 134#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */ 135#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */ 136 137#define XFS_QM_BWARNLIMIT 5 138#define XFS_QM_IWARNLIMIT 5 139#define XFS_QM_RTBWARNLIMIT 5 140 141extern void xfs_qm_destroy_quotainfo(struct xfs_mount *); 142 143/* dquot stuff */ 144extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint); 145extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint); 146 147/* quota ops */ 148extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint); 149extern int xfs_qm_scall_getquota(struct xfs_mount *mp, 150 xfs_dqid_t id, 151 xfs_dqtype_t type, 152 struct qc_dqblk *dst); 153extern int xfs_qm_scall_getquota_next(struct xfs_mount *mp, 154 xfs_dqid_t *id, 155 xfs_dqtype_t type, 156 struct qc_dqblk *dst); 157extern int xfs_qm_scall_setqlim(struct xfs_mount *mp, 158 xfs_dqid_t id, 159 xfs_dqtype_t type, 160 struct qc_dqblk *newlim); 161extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint); 162extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint); 163 164static inline struct xfs_def_quota * 165xfs_get_defquota(struct xfs_quotainfo *qi, xfs_dqtype_t type) 166{ 167 switch (type) { 168 case XFS_DQTYPE_USER: 169 return &qi->qi_usr_default; 170 case XFS_DQTYPE_GROUP: 171 return &qi->qi_grp_default; 172 case XFS_DQTYPE_PROJ: 173 return &qi->qi_prj_default; 174 default: 175 ASSERT(0); 176 return NULL; 177 } 178} 179 180#endif /* __XFS_QM_H__ */ 181