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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - fs/xfs/xfs_quota.h
1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2000-2005 Silicon Graphics, Inc.
6 #ifndef __XFS_QUOTA_H__
7 #define __XFS_QUOTA_H__
9 #include "xfs_quota_defs.h"
12 * Kernel only quota definitions and functions
19 * This check is done typically without holding the inode lock;
20 * that may seem racy, but it is harmless in the context that it is used.
21 * The inode cannot go inactive as long a reference is kept, and
22 * therefore if dquot(s) were attached, they'll stay consistent.
23 * If, for example, the ownership of the inode changes while
24 * we didn't have the inode locked, the appropriate dquot(s) will be
25 * attached atomically.
27 #define XFS_NOT_DQATTACHED(mp, ip) \
28 ((XFS_IS_UQUOTA_ON(mp) && (ip)->i_udquot == NULL) || \
29 (XFS_IS_GQUOTA_ON(mp) && (ip)->i_gdquot == NULL) || \
30 (XFS_IS_PQUOTA_ON(mp) && (ip)->i_pdquot == NULL))
32 #define XFS_QM_NEED_QUOTACHECK(mp) \
33 ((XFS_IS_UQUOTA_ON(mp) && \
34 (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
35 (XFS_IS_GQUOTA_ON(mp) && \
36 (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \
37 (XFS_IS_PQUOTA_ON(mp) && \
38 (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0))
46 return XFS_UQUOTA_CHKD
;
47 case XFS_DQTYPE_GROUP
:
48 return XFS_GQUOTA_CHKD
;
50 return XFS_PQUOTA_CHKD
;
57 * The structure kept inside the xfs_trans_t keep track of dquot changes
58 * within a transaction and apply them later.
61 struct xfs_dquot
*qt_dquot
; /* the dquot this refers to */
63 uint64_t qt_blk_res
; /* blks reserved on a dquot */
64 int64_t qt_bcount_delta
; /* dquot blk count changes */
65 int64_t qt_delbcnt_delta
; /* delayed dquot blk count changes */
67 uint64_t qt_rtblk_res
; /* # blks reserved on a dquot */
68 uint64_t qt_rtblk_res_used
;/* # blks used from reservation */
69 int64_t qt_rtbcount_delta
;/* dquot realtime blk changes */
70 int64_t qt_delrtb_delta
; /* delayed RT blk count changes */
72 uint64_t qt_ino_res
; /* inode reserved on a dquot */
73 uint64_t qt_ino_res_used
; /* inodes used from the reservation */
74 int64_t qt_icount_delta
; /* dquot inode count changes */
77 #ifdef CONFIG_XFS_QUOTA
78 extern void xfs_trans_dup_dqinfo(struct xfs_trans
*, struct xfs_trans
*);
79 extern void xfs_trans_free_dqinfo(struct xfs_trans
*);
80 extern void xfs_trans_mod_dquot_byino(struct xfs_trans
*, struct xfs_inode
*,
82 extern void xfs_trans_apply_dquot_deltas(struct xfs_trans
*);
83 extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans
*);
84 int xfs_trans_reserve_quota_nblks(struct xfs_trans
*tp
, struct xfs_inode
*ip
,
85 int64_t dblocks
, int64_t rblocks
, bool force
);
86 extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans
*,
87 struct xfs_mount
*, struct xfs_dquot
*,
88 struct xfs_dquot
*, struct xfs_dquot
*, int64_t, long, uint
);
89 int xfs_trans_reserve_quota_icreate(struct xfs_trans
*tp
,
90 struct xfs_dquot
*udqp
, struct xfs_dquot
*gdqp
,
91 struct xfs_dquot
*pdqp
, int64_t dblocks
);
93 extern int xfs_qm_vop_dqalloc(struct xfs_inode
*, kuid_t
, kgid_t
,
94 prid_t
, uint
, struct xfs_dquot
**, struct xfs_dquot
**,
96 extern void xfs_qm_vop_create_dqattach(struct xfs_trans
*, struct xfs_inode
*,
97 struct xfs_dquot
*, struct xfs_dquot
*, struct xfs_dquot
*);
98 extern int xfs_qm_vop_rename_dqattach(struct xfs_inode
**);
99 extern struct xfs_dquot
*xfs_qm_vop_chown(struct xfs_trans
*,
100 struct xfs_inode
*, struct xfs_dquot
**, struct xfs_dquot
*);
101 extern int xfs_qm_dqattach(struct xfs_inode
*);
102 extern int xfs_qm_dqattach_locked(struct xfs_inode
*ip
, bool doalloc
);
103 extern void xfs_qm_dqdetach(struct xfs_inode
*);
104 extern void xfs_qm_dqrele(struct xfs_dquot
*);
105 extern void xfs_qm_statvfs(struct xfs_inode
*, struct kstatfs
*);
106 extern int xfs_qm_newmount(struct xfs_mount
*, uint
*, uint
*);
107 extern void xfs_qm_mount_quotas(struct xfs_mount
*);
108 extern void xfs_qm_unmount(struct xfs_mount
*);
109 extern void xfs_qm_unmount_quotas(struct xfs_mount
*);
112 xfs_quota_reserve_blkres(struct xfs_inode
*ip
, int64_t blocks
)
114 return xfs_trans_reserve_quota_nblks(NULL
, ip
, blocks
, 0, false);
118 xfs_qm_vop_dqalloc(struct xfs_inode
*ip
, kuid_t kuid
, kgid_t kgid
,
119 prid_t prid
, uint flags
, struct xfs_dquot
**udqp
,
120 struct xfs_dquot
**gdqp
, struct xfs_dquot
**pdqp
)
127 #define xfs_trans_dup_dqinfo(tp, tp2)
128 #define xfs_trans_free_dqinfo(tp)
129 #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta) do { } while (0)
130 #define xfs_trans_apply_dquot_deltas(tp)
131 #define xfs_trans_unreserve_and_mod_dquots(tp)
132 static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans
*tp
,
133 struct xfs_inode
*ip
, int64_t dblocks
, int64_t rblocks
,
138 static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans
*tp
,
139 struct xfs_mount
*mp
, struct xfs_dquot
*udqp
,
140 struct xfs_dquot
*gdqp
, struct xfs_dquot
*pdqp
,
141 int64_t nblks
, long nions
, uint flags
)
147 xfs_quota_reserve_blkres(struct xfs_inode
*ip
, int64_t blocks
)
153 xfs_trans_reserve_quota_icreate(struct xfs_trans
*tp
, struct xfs_dquot
*udqp
,
154 struct xfs_dquot
*gdqp
, struct xfs_dquot
*pdqp
, int64_t dblocks
)
159 #define xfs_qm_vop_create_dqattach(tp, ip, u, g, p)
160 #define xfs_qm_vop_rename_dqattach(it) (0)
161 #define xfs_qm_vop_chown(tp, ip, old, new) (NULL)
162 #define xfs_qm_dqattach(ip) (0)
163 #define xfs_qm_dqattach_locked(ip, fl) (0)
164 #define xfs_qm_dqdetach(ip)
165 #define xfs_qm_dqrele(d) do { (d) = (d); } while(0)
166 #define xfs_qm_statvfs(ip, s) do { } while(0)
167 #define xfs_qm_newmount(mp, a, b) (0)
168 #define xfs_qm_mount_quotas(mp)
169 #define xfs_qm_unmount(mp)
170 #define xfs_qm_unmount_quotas(mp)
171 #endif /* CONFIG_XFS_QUOTA */
174 xfs_quota_unreserve_blkres(struct xfs_inode
*ip
, int64_t blocks
)
176 return xfs_quota_reserve_blkres(ip
, -blocks
);
179 extern int xfs_mount_reset_sbqflags(struct xfs_mount
*);
181 #endif /* __XFS_QUOTA_H__ */