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152 lines
5.8 KiB
152 lines
5.8 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_QUOTA_DEFS_H__ |
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#define __XFS_QUOTA_DEFS_H__ |
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/* |
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* Quota definitions shared between user and kernel source trees. |
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*/ |
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/* |
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* Even though users may not have quota limits occupying all 64-bits, |
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* they may need 64-bit accounting. Hence, 64-bit quota-counters, |
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* and quota-limits. This is a waste in the common case, but hey ... |
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*/ |
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typedef uint64_t xfs_qcnt_t; |
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typedef uint16_t xfs_qwarncnt_t; |
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typedef uint8_t xfs_dqtype_t; |
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#define XFS_DQTYPE_STRINGS \ |
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{ XFS_DQTYPE_USER, "USER" }, \ |
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{ XFS_DQTYPE_PROJ, "PROJ" }, \ |
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{ XFS_DQTYPE_GROUP, "GROUP" }, \ |
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{ XFS_DQTYPE_BIGTIME, "BIGTIME" } |
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/* |
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* flags for q_flags field in the dquot. |
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*/ |
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#define XFS_DQFLAG_DIRTY (1 << 0) /* dquot is dirty */ |
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#define XFS_DQFLAG_FREEING (1 << 1) /* dquot is being torn down */ |
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#define XFS_DQFLAG_STRINGS \ |
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{ XFS_DQFLAG_DIRTY, "DIRTY" }, \ |
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{ XFS_DQFLAG_FREEING, "FREEING" } |
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/* |
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* We have the possibility of all three quota types being active at once, and |
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* hence free space modification requires modification of all three current |
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* dquots in a single transaction. For this case we need to have a reservation |
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* of at least 3 dquots. |
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* |
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* However, a chmod operation can change both UID and GID in a single |
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* transaction, resulting in requiring {old, new} x {uid, gid} dquots to be |
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* modified. Hence for this case we need to reserve space for at least 4 dquots. |
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* |
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* And in the worst case, there's a rename operation that can be modifying up to |
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* 4 inodes with dquots attached to them. In reality, the only inodes that can |
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* have their dquots modified are the source and destination directory inodes |
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* due to directory name creation and removal. That can require space allocation |
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* and/or freeing on both directory inodes, and hence all three dquots on each |
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* inode can be modified. And if the directories are world writeable, all the |
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* dquots can be unique and so 6 dquots can be modified.... |
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* |
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* And, of course, we also need to take into account the dquot log format item |
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* used to describe each dquot. |
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*/ |
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#define XFS_DQUOT_LOGRES(mp) \ |
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((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6) |
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#define XFS_IS_QUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT) |
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#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT) |
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#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT) |
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#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT) |
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#define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD) |
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#define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD) |
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#define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD) |
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/* |
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* Incore only flags for quotaoff - these bits get cleared when quota(s) |
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* are in the process of getting turned off. These flags are in m_qflags but |
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* never in sb_qflags. |
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*/ |
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#define XFS_UQUOTA_ACTIVE 0x1000 /* uquotas are being turned off */ |
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#define XFS_GQUOTA_ACTIVE 0x2000 /* gquotas are being turned off */ |
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#define XFS_PQUOTA_ACTIVE 0x4000 /* pquotas are being turned off */ |
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#define XFS_ALL_QUOTA_ACTIVE \ |
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(XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE) |
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/* |
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* Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees |
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* quota will be not be switched off as long as that inode lock is held. |
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*/ |
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#define XFS_IS_QUOTA_ON(mp) ((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \ |
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XFS_GQUOTA_ACTIVE | \ |
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XFS_PQUOTA_ACTIVE)) |
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#define XFS_IS_UQUOTA_ON(mp) ((mp)->m_qflags & XFS_UQUOTA_ACTIVE) |
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#define XFS_IS_GQUOTA_ON(mp) ((mp)->m_qflags & XFS_GQUOTA_ACTIVE) |
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#define XFS_IS_PQUOTA_ON(mp) ((mp)->m_qflags & XFS_PQUOTA_ACTIVE) |
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/* |
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* Flags to tell various functions what to do. Not all of these are meaningful |
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* to a single function. None of these XFS_QMOPT_* flags are meant to have |
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* persistent values (ie. their values can and will change between versions) |
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*/ |
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#define XFS_QMOPT_UQUOTA 0x0000004 /* user dquot requested */ |
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#define XFS_QMOPT_PQUOTA 0x0000008 /* project dquot requested */ |
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#define XFS_QMOPT_FORCE_RES 0x0000010 /* ignore quota limits */ |
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#define XFS_QMOPT_SBVERSION 0x0000040 /* change superblock version num */ |
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#define XFS_QMOPT_GQUOTA 0x0002000 /* group dquot requested */ |
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/* |
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* flags to xfs_trans_mod_dquot to indicate which field needs to be |
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* modified. |
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*/ |
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#define XFS_QMOPT_RES_REGBLKS 0x0010000 |
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#define XFS_QMOPT_RES_RTBLKS 0x0020000 |
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#define XFS_QMOPT_BCOUNT 0x0040000 |
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#define XFS_QMOPT_ICOUNT 0x0080000 |
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#define XFS_QMOPT_RTBCOUNT 0x0100000 |
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#define XFS_QMOPT_DELBCOUNT 0x0200000 |
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#define XFS_QMOPT_DELRTBCOUNT 0x0400000 |
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#define XFS_QMOPT_RES_INOS 0x0800000 |
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/* |
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* flags for dqalloc. |
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*/ |
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#define XFS_QMOPT_INHERIT 0x1000000 |
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/* |
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* flags to xfs_trans_mod_dquot. |
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*/ |
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#define XFS_TRANS_DQ_RES_BLKS XFS_QMOPT_RES_REGBLKS |
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#define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS |
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#define XFS_TRANS_DQ_RES_INOS XFS_QMOPT_RES_INOS |
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#define XFS_TRANS_DQ_BCOUNT XFS_QMOPT_BCOUNT |
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#define XFS_TRANS_DQ_DELBCOUNT XFS_QMOPT_DELBCOUNT |
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#define XFS_TRANS_DQ_ICOUNT XFS_QMOPT_ICOUNT |
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#define XFS_TRANS_DQ_RTBCOUNT XFS_QMOPT_RTBCOUNT |
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#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT |
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#define XFS_QMOPT_QUOTALL \ |
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(XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA) |
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#define XFS_QMOPT_RESBLK_MASK (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS) |
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extern xfs_failaddr_t xfs_dquot_verify(struct xfs_mount *mp, |
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struct xfs_disk_dquot *ddq, xfs_dqid_t id); |
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extern xfs_failaddr_t xfs_dqblk_verify(struct xfs_mount *mp, |
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struct xfs_dqblk *dqb, xfs_dqid_t id); |
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extern int xfs_calc_dquots_per_chunk(unsigned int nbblks); |
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extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb, |
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xfs_dqid_t id, xfs_dqtype_t type); |
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struct xfs_dquot; |
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time64_t xfs_dquot_from_disk_ts(struct xfs_disk_dquot *ddq, |
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__be32 dtimer); |
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__be32 xfs_dquot_to_disk_ts(struct xfs_dquot *ddq, time64_t timer); |
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#endif /* __XFS_QUOTA_H__ */
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