1 // SPDX-License-Identifier: GPL-2.0 2 /* 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 */ 18 typedef uint64_t xfs_qcnt_t; 19 20 typedef 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, and 40 * hence free space modification requires modification of all three current 41 * dquots in a single transaction. For this case we need to have a reservation 42 * of at least 3 dquots. 43 * 44 * However, a chmod operation can change both UID and GID in a single 45 * transaction, resulting in requiring {old, new} x {uid, gid} dquots to be 46 * 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 to 49 * 4 inodes with dquots attached to them. In reality, the only inodes that can 50 * have their dquots modified are the source and destination directory inodes 51 * due to directory name creation and removal. That can require space allocation 52 * and/or freeing on both directory inodes, and hence all three dquots on each 53 * inode can be modified. And if the directories are world writeable, all the 54 * 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 item 57 * 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 meaningful 72 * to a single function. None of these XFS_QMOPT_* flags are meant to have 73 * 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 be 83 * 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_REGBLKS 119 #define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS 120 #define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS 121 #define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT 122 #define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT 123 #define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT 124 #define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT 125 #define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT 126 127 128 #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) 131 132 133 extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp, 134 struct xfs_disk_dquot *ddq, xfs_dqid_t id); 135 extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp, 136 struct xfs_dqblk *dqb, xfs_dqid_t id); 137 extern int xfs_calc_dquots_per_chunk(unsigned int nbblks); 138 extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb, 139 xfs_dqid_t id, xfs_dqtype_t type); 140 141 struct xfs_dquot; 142 time64_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