// 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 ... */ xfs_qcnt_t; xfs_dqtype_t; #define XFS_DQTYPE_STRINGS … /* * flags for q_flags field in the dquot. */ #define XFS_DQFLAG_DIRTY … #define XFS_DQFLAG_FREEING … #define XFS_DQFLAG_STRINGS … /* * 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 … #define XFS_IS_QUOTA_ON(mp) … #define XFS_IS_UQUOTA_ON(mp) … #define XFS_IS_PQUOTA_ON(mp) … #define XFS_IS_GQUOTA_ON(mp) … #define XFS_IS_UQUOTA_ENFORCED(mp) … #define XFS_IS_GQUOTA_ENFORCED(mp) … #define XFS_IS_PQUOTA_ENFORCED(mp) … /* * 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 … #define XFS_QMOPT_GQUOTA … #define XFS_QMOPT_PQUOTA … #define XFS_QMOPT_FORCE_RES … #define XFS_QMOPT_SBVERSION … /* * flags to xfs_trans_mod_dquot to indicate which field needs to be * modified. */ #define XFS_QMOPT_RES_REGBLKS … #define XFS_QMOPT_RES_RTBLKS … #define XFS_QMOPT_BCOUNT … #define XFS_QMOPT_ICOUNT … #define XFS_QMOPT_RTBCOUNT … #define XFS_QMOPT_DELBCOUNT … #define XFS_QMOPT_DELRTBCOUNT … #define XFS_QMOPT_RES_INOS … /* * flags for dqalloc. */ #define XFS_QMOPT_INHERIT … #define XFS_QMOPT_FLAGS … /* * flags to xfs_trans_mod_dquot. */ #define XFS_TRANS_DQ_RES_BLKS … #define XFS_TRANS_DQ_RES_RTBLKS … #define XFS_TRANS_DQ_RES_INOS … #define XFS_TRANS_DQ_BCOUNT … #define XFS_TRANS_DQ_DELBCOUNT … #define XFS_TRANS_DQ_ICOUNT … #define XFS_TRANS_DQ_RTBCOUNT … #define XFS_TRANS_DQ_DELRTBCOUNT … #define XFS_QMOPT_QUOTALL … #define XFS_QMOPT_RESBLK_MASK … 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__ */
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