| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| */ |
| #ifndef __XFS_QM_H__ |
| #define __XFS_QM_H__ |
| |
| #include "xfs_dquot_item.h" |
| #include "xfs_dquot.h" |
| |
| struct xfs_inode; |
| |
| extern struct kmem_zone *xfs_qm_dqtrxzone; |
| |
| /* |
| * Number of bmaps that we ask from bmapi when doing a quotacheck. |
| * We make this restriction to keep the memory usage to a minimum. |
| */ |
| #define XFS_DQITER_MAP_SIZE 10 |
| |
| #define XFS_IS_DQUOT_UNINITIALIZED(dqp) ( \ |
| !dqp->q_core.d_blk_hardlimit && \ |
| !dqp->q_core.d_blk_softlimit && \ |
| !dqp->q_core.d_rtb_hardlimit && \ |
| !dqp->q_core.d_rtb_softlimit && \ |
| !dqp->q_core.d_ino_hardlimit && \ |
| !dqp->q_core.d_ino_softlimit && \ |
| !dqp->q_core.d_bcount && \ |
| !dqp->q_core.d_rtbcount && \ |
| !dqp->q_core.d_icount) |
| |
| /* |
| * This defines the unit of allocation of dquots. |
| * Currently, it is just one file system block, and a 4K blk contains 30 |
| * (136 * 30 = 4080) dquots. It's probably not worth trying to make |
| * this more dynamic. |
| * XXXsup However, if this number is changed, we have to make sure that we don't |
| * implicitly assume that we do allocations in chunks of a single filesystem |
| * block in the dquot/xqm code. |
| */ |
| #define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1 |
| |
| /* Defaults for each quota type: time limits, warn limits, usage limits */ |
| struct xfs_def_quota { |
| time64_t btimelimit; /* limit for blks timer */ |
| time64_t itimelimit; /* limit for inodes timer */ |
| time64_t rtbtimelimit; /* limit for rt blks timer */ |
| xfs_qwarncnt_t bwarnlimit; /* limit for blks warnings */ |
| xfs_qwarncnt_t iwarnlimit; /* limit for inodes warnings */ |
| xfs_qwarncnt_t rtbwarnlimit; /* limit for rt blks warnings */ |
| xfs_qcnt_t bhardlimit; /* default data blk hard limit */ |
| xfs_qcnt_t bsoftlimit; /* default data blk soft limit */ |
| xfs_qcnt_t ihardlimit; /* default inode count hard limit */ |
| xfs_qcnt_t isoftlimit; /* default inode count soft limit */ |
| xfs_qcnt_t rtbhardlimit; /* default realtime blk hard limit */ |
| xfs_qcnt_t rtbsoftlimit; /* default realtime blk soft limit */ |
| }; |
| |
| /* |
| * Various quota information for individual filesystems. |
| * The mount structure keeps a pointer to this. |
| */ |
| struct xfs_quotainfo { |
| struct radix_tree_root qi_uquota_tree; |
| struct radix_tree_root qi_gquota_tree; |
| struct radix_tree_root qi_pquota_tree; |
| struct mutex qi_tree_lock; |
| struct xfs_inode *qi_uquotaip; /* user quota inode */ |
| struct xfs_inode *qi_gquotaip; /* group quota inode */ |
| struct xfs_inode *qi_pquotaip; /* project quota inode */ |
| struct list_lru qi_lru; |
| int qi_dquots; |
| struct mutex qi_quotaofflock;/* to serialize quotaoff */ |
| xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */ |
| uint qi_dqperchunk; /* # ondisk dq in above chunk */ |
| struct xfs_def_quota qi_usr_default; |
| struct xfs_def_quota qi_grp_default; |
| struct xfs_def_quota qi_prj_default; |
| struct shrinker qi_shrinker; |
| }; |
| |
| static inline struct radix_tree_root * |
| xfs_dquot_tree( |
| struct xfs_quotainfo *qi, |
| int type) |
| { |
| switch (type) { |
| case XFS_DQ_USER: |
| return &qi->qi_uquota_tree; |
| case XFS_DQ_GROUP: |
| return &qi->qi_gquota_tree; |
| case XFS_DQ_PROJ: |
| return &qi->qi_pquota_tree; |
| default: |
| ASSERT(0); |
| } |
| return NULL; |
| } |
| |
| static inline struct xfs_inode * |
| xfs_quota_inode(xfs_mount_t *mp, uint dq_flags) |
| { |
| switch (dq_flags & XFS_DQ_ALLTYPES) { |
| case XFS_DQ_USER: |
| return mp->m_quotainfo->qi_uquotaip; |
| case XFS_DQ_GROUP: |
| return mp->m_quotainfo->qi_gquotaip; |
| case XFS_DQ_PROJ: |
| return mp->m_quotainfo->qi_pquotaip; |
| default: |
| ASSERT(0); |
| } |
| return NULL; |
| } |
| |
| static inline int |
| xfs_dquot_type(struct xfs_dquot *dqp) |
| { |
| if (XFS_QM_ISUDQ(dqp)) |
| return XFS_DQ_USER; |
| if (XFS_QM_ISGDQ(dqp)) |
| return XFS_DQ_GROUP; |
| ASSERT(XFS_QM_ISPDQ(dqp)); |
| return XFS_DQ_PROJ; |
| } |
| |
| extern void xfs_trans_mod_dquot(struct xfs_trans *tp, struct xfs_dquot *dqp, |
| uint field, int64_t delta); |
| extern void xfs_trans_dqjoin(struct xfs_trans *, struct xfs_dquot *); |
| extern void xfs_trans_log_dquot(struct xfs_trans *, struct xfs_dquot *); |
| |
| /* |
| * We keep the usr, grp, and prj dquots separately so that locking will be |
| * easier to do at commit time. All transactions that we know of at this point |
| * affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value. |
| */ |
| enum { |
| XFS_QM_TRANS_USR = 0, |
| XFS_QM_TRANS_GRP, |
| XFS_QM_TRANS_PRJ, |
| XFS_QM_TRANS_DQTYPES |
| }; |
| #define XFS_QM_TRANS_MAXDQS 2 |
| struct xfs_dquot_acct { |
| struct xfs_dqtrx dqs[XFS_QM_TRANS_DQTYPES][XFS_QM_TRANS_MAXDQS]; |
| }; |
| |
| /* |
| * Users are allowed to have a usage exceeding their softlimit for |
| * a period this long. |
| */ |
| #define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */ |
| #define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */ |
| #define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */ |
| |
| #define XFS_QM_BWARNLIMIT 5 |
| #define XFS_QM_IWARNLIMIT 5 |
| #define XFS_QM_RTBWARNLIMIT 5 |
| |
| extern void xfs_qm_destroy_quotainfo(struct xfs_mount *); |
| |
| /* dquot stuff */ |
| extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint); |
| extern void xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint); |
| |
| /* quota ops */ |
| extern int xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint); |
| extern int xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t, |
| uint, struct qc_dqblk *); |
| extern int xfs_qm_scall_getquota_next(struct xfs_mount *, |
| xfs_dqid_t *, uint, struct qc_dqblk *); |
| extern int xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint, |
| struct qc_dqblk *); |
| extern int xfs_qm_scall_quotaon(struct xfs_mount *, uint); |
| extern int xfs_qm_scall_quotaoff(struct xfs_mount *, uint); |
| |
| static inline struct xfs_def_quota * |
| xfs_get_defquota(struct xfs_quotainfo *qi, int type) |
| { |
| switch (type) { |
| case XFS_DQ_USER: |
| return &qi->qi_usr_default; |
| case XFS_DQ_GROUP: |
| return &qi->qi_grp_default; |
| case XFS_DQ_PROJ: |
| return &qi->qi_prj_default; |
| default: |
| ASSERT(0); |
| return NULL; |
| } |
| } |
| |
| #endif /* __XFS_QM_H__ */ |