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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | // SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. */ #ifndef __XFS_QUOTA_DEFS_H__ #define __XFS_QUOTA_DEFS_H__ /* * Quota definitions shared between user and kernel source trees. */ /* * Even though users may not have quota limits occupying all 64-bits, * they may need 64-bit accounting. Hence, 64-bit quota-counters, * and quota-limits. This is a waste in the common case, but hey ... */ typedef uint64_t xfs_qcnt_t; typedef uint8_t xfs_dqtype_t; #define XFS_DQTYPE_STRINGS \ { XFS_DQTYPE_USER, "USER" }, \ { XFS_DQTYPE_PROJ, "PROJ" }, \ { XFS_DQTYPE_GROUP, "GROUP" }, \ { XFS_DQTYPE_BIGTIME, "BIGTIME" } /* * flags for q_flags field in the dquot. */ #define XFS_DQFLAG_DIRTY (1u << 0) /* dquot is dirty */ #define XFS_DQFLAG_FREEING (1u << 1) /* dquot is being torn down */ #define XFS_DQFLAG_STRINGS \ { XFS_DQFLAG_DIRTY, "DIRTY" }, \ { XFS_DQFLAG_FREEING, "FREEING" } /* * We have the possibility of all three quota types being active at once, and * hence free space modification requires modification of all three current * dquots in a single transaction. For this case we need to have a reservation * of at least 3 dquots. * * However, a chmod operation can change both UID and GID in a single * transaction, resulting in requiring {old, new} x {uid, gid} dquots to be * modified. Hence for this case we need to reserve space for at least 4 dquots. * * And in the worst case, there's a rename operation that can be modifying up to * 4 inodes with dquots attached to them. In reality, the only inodes that can * have their dquots modified are the source and destination directory inodes * due to directory name creation and removal. That can require space allocation * and/or freeing on both directory inodes, and hence all three dquots on each * inode can be modified. And if the directories are world writeable, all the * dquots can be unique and so 6 dquots can be modified.... * * And, of course, we also need to take into account the dquot log format item * used to describe each dquot. */ #define XFS_DQUOT_LOGRES(mp) \ ((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6) #define XFS_IS_QUOTA_ON(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT) #define XFS_IS_UQUOTA_ON(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT) #define XFS_IS_PQUOTA_ON(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT) #define XFS_IS_GQUOTA_ON(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT) #define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD) #define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD) #define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD) /* * Flags to tell various functions what to do. Not all of these are meaningful * to a single function. None of these XFS_QMOPT_* flags are meant to have * persistent values (ie. their values can and will change between versions) */ #define XFS_QMOPT_UQUOTA (1u << 0) /* user dquot requested */ #define XFS_QMOPT_GQUOTA (1u << 1) /* group dquot requested */ #define XFS_QMOPT_PQUOTA (1u << 2) /* project dquot requested */ #define XFS_QMOPT_FORCE_RES (1u << 3) /* ignore quota limits */ #define XFS_QMOPT_SBVERSION (1u << 4) /* change superblock version num */ /* * flags to xfs_trans_mod_dquot to indicate which field needs to be * modified. */ #define XFS_QMOPT_RES_REGBLKS (1u << 7) #define XFS_QMOPT_RES_RTBLKS (1u << 8) #define XFS_QMOPT_BCOUNT (1u << 9) #define XFS_QMOPT_ICOUNT (1u << 10) #define XFS_QMOPT_RTBCOUNT (1u << 11) #define XFS_QMOPT_DELBCOUNT (1u << 12) #define XFS_QMOPT_DELRTBCOUNT (1u << 13) #define XFS_QMOPT_RES_INOS (1u << 14) /* * flags for dqalloc. */ #define XFS_QMOPT_INHERIT (1u << 31) #define XFS_QMOPT_FLAGS \ { XFS_QMOPT_UQUOTA, "UQUOTA" }, \ { XFS_QMOPT_PQUOTA, "PQUOTA" }, \ { XFS_QMOPT_FORCE_RES, "FORCE_RES" }, \ { XFS_QMOPT_SBVERSION, "SBVERSION" }, \ { XFS_QMOPT_GQUOTA, "GQUOTA" }, \ { XFS_QMOPT_INHERIT, "INHERIT" }, \ { XFS_QMOPT_RES_REGBLKS, "RES_REGBLKS" }, \ { XFS_QMOPT_RES_RTBLKS, "RES_RTBLKS" }, \ { XFS_QMOPT_BCOUNT, "BCOUNT" }, \ { XFS_QMOPT_ICOUNT, "ICOUNT" }, \ { XFS_QMOPT_RTBCOUNT, "RTBCOUNT" }, \ { XFS_QMOPT_DELBCOUNT, "DELBCOUNT" }, \ { XFS_QMOPT_DELRTBCOUNT, "DELRTBCOUNT" }, \ { XFS_QMOPT_RES_INOS, "RES_INOS" } /* * flags to xfs_trans_mod_dquot. */ #define XFS_TRANS_DQ_RES_BLKS XFS_QMOPT_RES_REGBLKS #define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS #define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS #define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT #define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT #define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT #define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT #define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT #define XFS_QMOPT_QUOTALL \ (XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA) #define XFS_QMOPT_RESBLK_MASK (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS) extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp, struct xfs_disk_dquot *ddq, xfs_dqid_t id); extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp, struct xfs_dqblk *dqb, xfs_dqid_t id); extern int xfs_calc_dquots_per_chunk(unsigned int nbblks); extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb, xfs_dqid_t id, xfs_dqtype_t type); struct xfs_dquot; time64_t xfs_dquot_from_disk_ts(struct xfs_disk_dquot *ddq, __be32 dtimer); __be32 xfs_dquot_to_disk_ts(struct xfs_dquot *ddq, time64_t timer); #endif /* __XFS_QUOTA_H__ */ |