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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_QUOTA_DEFS_H__7#define __XFS_QUOTA_DEFS_H__8 9/*10 * Quota definitions shared between user and kernel source trees.11 */12 13/*14 * Even though users may not have quota limits occupying all 64-bits,15 * they may need 64-bit accounting. Hence, 64-bit quota-counters,16 * and quota-limits. This is a waste in the common case, but hey ...17 */18typedef uint64_t xfs_qcnt_t;19 20typedef uint8_t xfs_dqtype_t;21 22#define XFS_DQTYPE_STRINGS \23 { XFS_DQTYPE_USER, "USER" }, \24 { XFS_DQTYPE_PROJ, "PROJ" }, \25 { XFS_DQTYPE_GROUP, "GROUP" }, \26 { XFS_DQTYPE_BIGTIME, "BIGTIME" }27 28/*29 * flags for q_flags field in the dquot.30 */31#define XFS_DQFLAG_DIRTY (1u << 0) /* dquot is dirty */32#define XFS_DQFLAG_FREEING (1u << 1) /* dquot is being torn down */33 34#define XFS_DQFLAG_STRINGS \35 { XFS_DQFLAG_DIRTY, "DIRTY" }, \36 { XFS_DQFLAG_FREEING, "FREEING" }37 38/*39 * We have the possibility of all three quota types being active at once, and40 * hence free space modification requires modification of all three current41 * dquots in a single transaction. For this case we need to have a reservation42 * of at least 3 dquots.43 *44 * However, a chmod operation can change both UID and GID in a single45 * transaction, resulting in requiring {old, new} x {uid, gid} dquots to be46 * modified. Hence for this case we need to reserve space for at least 4 dquots.47 *48 * And in the worst case, there's a rename operation that can be modifying up to49 * 4 inodes with dquots attached to them. In reality, the only inodes that can50 * have their dquots modified are the source and destination directory inodes51 * due to directory name creation and removal. That can require space allocation52 * and/or freeing on both directory inodes, and hence all three dquots on each53 * inode can be modified. And if the directories are world writeable, all the54 * dquots can be unique and so 6 dquots can be modified....55 *56 * And, of course, we also need to take into account the dquot log format item57 * used to describe each dquot.58 */59#define XFS_DQUOT_LOGRES \60 ((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6)61 62#define XFS_IS_QUOTA_ON(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)63#define XFS_IS_UQUOTA_ON(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)64#define XFS_IS_PQUOTA_ON(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)65#define XFS_IS_GQUOTA_ON(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)66#define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD)67#define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD)68#define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD)69 70/*71 * Flags to tell various functions what to do. Not all of these are meaningful72 * to a single function. None of these XFS_QMOPT_* flags are meant to have73 * persistent values (ie. their values can and will change between versions)74 */75#define XFS_QMOPT_UQUOTA (1u << 0) /* user dquot requested */76#define XFS_QMOPT_GQUOTA (1u << 1) /* group dquot requested */77#define XFS_QMOPT_PQUOTA (1u << 2) /* project dquot requested */78#define XFS_QMOPT_FORCE_RES (1u << 3) /* ignore quota limits */79#define XFS_QMOPT_SBVERSION (1u << 4) /* change superblock version num */80 81/*82 * flags to xfs_trans_mod_dquot to indicate which field needs to be83 * modified.84 */85#define XFS_QMOPT_RES_REGBLKS (1u << 7)86#define XFS_QMOPT_RES_RTBLKS (1u << 8)87#define XFS_QMOPT_BCOUNT (1u << 9)88#define XFS_QMOPT_ICOUNT (1u << 10)89#define XFS_QMOPT_RTBCOUNT (1u << 11)90#define XFS_QMOPT_DELBCOUNT (1u << 12)91#define XFS_QMOPT_DELRTBCOUNT (1u << 13)92#define XFS_QMOPT_RES_INOS (1u << 14)93 94/*95 * flags for dqalloc.96 */97#define XFS_QMOPT_INHERIT (1u << 31)98 99#define XFS_QMOPT_FLAGS \100 { XFS_QMOPT_UQUOTA, "UQUOTA" }, \101 { XFS_QMOPT_PQUOTA, "PQUOTA" }, \102 { XFS_QMOPT_FORCE_RES, "FORCE_RES" }, \103 { XFS_QMOPT_SBVERSION, "SBVERSION" }, \104 { XFS_QMOPT_GQUOTA, "GQUOTA" }, \105 { XFS_QMOPT_INHERIT, "INHERIT" }, \106 { XFS_QMOPT_RES_REGBLKS, "RES_REGBLKS" }, \107 { XFS_QMOPT_RES_RTBLKS, "RES_RTBLKS" }, \108 { XFS_QMOPT_BCOUNT, "BCOUNT" }, \109 { XFS_QMOPT_ICOUNT, "ICOUNT" }, \110 { XFS_QMOPT_RTBCOUNT, "RTBCOUNT" }, \111 { XFS_QMOPT_DELBCOUNT, "DELBCOUNT" }, \112 { XFS_QMOPT_DELRTBCOUNT, "DELRTBCOUNT" }, \113 { XFS_QMOPT_RES_INOS, "RES_INOS" }114 115/*116 * flags to xfs_trans_mod_dquot.117 */118#define XFS_TRANS_DQ_RES_BLKS XFS_QMOPT_RES_REGBLKS119#define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS120#define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS121#define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT122#define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT123#define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT124#define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT125#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT126 127 128#define XFS_QMOPT_QUOTALL \129 (XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)130#define XFS_QMOPT_RESBLK_MASK (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)131 132 133extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp,134 struct xfs_disk_dquot *ddq, xfs_dqid_t id);135extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp,136 struct xfs_dqblk *dqb, xfs_dqid_t id);137extern int xfs_calc_dquots_per_chunk(unsigned int nbblks);138extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb,139 xfs_dqid_t id, xfs_dqtype_t type);140 141struct xfs_dquot;142time64_t xfs_dquot_from_disk_ts(struct xfs_disk_dquot *ddq,143 __be32 dtimer);144__be32 xfs_dquot_to_disk_ts(struct xfs_dquot *ddq, time64_t timer);145 146#endif /* __XFS_QUOTA_H__ */147