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180 lines
4.8 KiB
180 lines
4.8 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2000-2005 Silicon Graphics, Inc. |
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* All Rights Reserved. |
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*/ |
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#ifndef __XFS_QM_H__ |
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#define __XFS_QM_H__ |
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#include "xfs_dquot_item.h" |
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#include "xfs_dquot.h" |
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struct xfs_inode; |
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extern struct kmem_zone *xfs_qm_dqtrxzone; |
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/* |
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* Number of bmaps that we ask from bmapi when doing a quotacheck. |
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* We make this restriction to keep the memory usage to a minimum. |
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*/ |
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#define XFS_DQITER_MAP_SIZE 10 |
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#define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \ |
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!dqp->q_blk.hardlimit && \ |
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!dqp->q_blk.softlimit && \ |
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!dqp->q_rtb.hardlimit && \ |
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!dqp->q_rtb.softlimit && \ |
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!dqp->q_ino.hardlimit && \ |
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!dqp->q_ino.softlimit && \ |
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!dqp->q_blk.count && \ |
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!dqp->q_rtb.count && \ |
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!dqp->q_ino.count) |
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struct xfs_quota_limits { |
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xfs_qcnt_t hard; /* default hard limit */ |
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xfs_qcnt_t soft; /* default soft limit */ |
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time64_t time; /* limit for timers */ |
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xfs_qwarncnt_t warn; /* limit for warnings */ |
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}; |
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/* Defaults for each quota type: time limits, warn limits, usage limits */ |
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struct xfs_def_quota { |
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struct xfs_quota_limits blk; |
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struct xfs_quota_limits ino; |
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struct xfs_quota_limits rtb; |
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}; |
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/* |
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* Various quota information for individual filesystems. |
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* The mount structure keeps a pointer to this. |
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*/ |
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struct xfs_quotainfo { |
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struct radix_tree_root qi_uquota_tree; |
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struct radix_tree_root qi_gquota_tree; |
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struct radix_tree_root qi_pquota_tree; |
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struct mutex qi_tree_lock; |
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struct xfs_inode *qi_uquotaip; /* user quota inode */ |
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struct xfs_inode *qi_gquotaip; /* group quota inode */ |
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struct xfs_inode *qi_pquotaip; /* project quota inode */ |
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struct list_lru qi_lru; |
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int qi_dquots; |
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struct mutex qi_quotaofflock;/* to serialize quotaoff */ |
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xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */ |
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uint qi_dqperchunk; /* # ondisk dq in above chunk */ |
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struct xfs_def_quota qi_usr_default; |
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struct xfs_def_quota qi_grp_default; |
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struct xfs_def_quota qi_prj_default; |
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struct shrinker qi_shrinker; |
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/* Minimum and maximum quota expiration timestamp values. */ |
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time64_t qi_expiry_min; |
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time64_t qi_expiry_max; |
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}; |
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static inline struct radix_tree_root * |
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xfs_dquot_tree( |
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struct xfs_quotainfo *qi, |
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xfs_dqtype_t type) |
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{ |
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switch (type) { |
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case XFS_DQTYPE_USER: |
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return &qi->qi_uquota_tree; |
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case XFS_DQTYPE_GROUP: |
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return &qi->qi_gquota_tree; |
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case XFS_DQTYPE_PROJ: |
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return &qi->qi_pquota_tree; |
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default: |
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ASSERT(0); |
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} |
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return NULL; |
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} |
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static inline struct xfs_inode * |
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xfs_quota_inode(struct xfs_mount *mp, xfs_dqtype_t type) |
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{ |
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switch (type) { |
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case XFS_DQTYPE_USER: |
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return mp->m_quotainfo->qi_uquotaip; |
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case XFS_DQTYPE_GROUP: |
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return mp->m_quotainfo->qi_gquotaip; |
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case XFS_DQTYPE_PROJ: |
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return mp->m_quotainfo->qi_pquotaip; |
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default: |
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ASSERT(0); |
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} |
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return NULL; |
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} |
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extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp, |
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uint field, int64_t delta); |
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extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *); |
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extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *); |
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/* |
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* We keep the usr, grp, and prj dquots separately so that locking will be |
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* easier to do at commit time. All transactions that we know of at this point |
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* affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value. |
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*/ |
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enum { |
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XFS_QM_TRANS_USR = 0, |
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XFS_QM_TRANS_GRP, |
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XFS_QM_TRANS_PRJ, |
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XFS_QM_TRANS_DQTYPES |
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}; |
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#define XFS_QM_TRANS_MAXDQS 2 |
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struct xfs_dquot_acct { |
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struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS]; |
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}; |
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/* |
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* Users are allowed to have a usage exceeding their softlimit for |
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* a period this long. |
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*/ |
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#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */ |
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#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */ |
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#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */ |
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#define XFS_QM_BWARNLIMIT 5 |
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#define XFS_QM_IWARNLIMIT 5 |
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#define XFS_QM_RTBWARNLIMIT 5 |
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extern void xfs_qm_destroy_quotainfo(struct xfs_mount *); |
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/* dquot stuff */ |
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extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint); |
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extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint); |
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/* quota ops */ |
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extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint); |
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extern int xfs_qm_scall_getquota(struct xfs_mount *mp, |
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xfs_dqid_t id, |
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xfs_dqtype_t type, |
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struct qc_dqblk *dst); |
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extern int xfs_qm_scall_getquota_next(struct xfs_mount *mp, |
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xfs_dqid_t *id, |
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xfs_dqtype_t type, |
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struct qc_dqblk *dst); |
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extern int xfs_qm_scall_setqlim(struct xfs_mount *mp, |
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xfs_dqid_t id, |
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xfs_dqtype_t type, |
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struct qc_dqblk *newlim); |
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extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint); |
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extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint); |
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static inline struct xfs_def_quota * |
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xfs_get_defquota(struct xfs_quotainfo *qi, xfs_dqtype_t type) |
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{ |
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switch (type) { |
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case XFS_DQTYPE_USER: |
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return &qi->qi_usr_default; |
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case XFS_DQTYPE_GROUP: |
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return &qi->qi_grp_default; |
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case XFS_DQTYPE_PROJ: |
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return &qi->qi_prj_default; |
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default: |
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ASSERT(0); |
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return NULL; |
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} |
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} |
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#endif /* __XFS_QM_H__ */
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