1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#ifndef	__XFS_TRANS_RESV_H__
7#define	__XFS_TRANS_RESV_H__
8
9struct xfs_mount;
10
11/*
12 * structure for maintaining pre-calculated transaction reservations.
13 */
14struct xfs_trans_res {
15	uint	tr_logres;	/* log space unit in bytes per log ticket */
16	int	tr_logcount;	/* number of log operations per log ticket */
17	int	tr_logflags;	/* log flags, currently only used for indicating
18				 * a reservation request is permanent or not */
19};
20
21struct xfs_trans_resv {
22	struct xfs_trans_res	tr_write;	/* extent alloc trans */
23	struct xfs_trans_res	tr_itruncate;	/* truncate trans */
24	struct xfs_trans_res	tr_rename;	/* rename trans */
25	struct xfs_trans_res	tr_link;	/* link trans */
26	struct xfs_trans_res	tr_remove;	/* unlink trans */
27	struct xfs_trans_res	tr_symlink;	/* symlink trans */
28	struct xfs_trans_res	tr_create;	/* create trans */
29	struct xfs_trans_res	tr_create_tmpfile; /* create O_TMPFILE trans */
30	struct xfs_trans_res	tr_mkdir;	/* mkdir trans */
31	struct xfs_trans_res	tr_ifree;	/* inode free trans */
32	struct xfs_trans_res	tr_ichange;	/* inode update trans */
33	struct xfs_trans_res	tr_growdata;	/* fs data section grow trans */
34	struct xfs_trans_res	tr_addafork;	/* add inode attr fork trans */
35	struct xfs_trans_res	tr_writeid;	/* write setuid/setgid file */
36	struct xfs_trans_res	tr_attrinval;	/* attr fork buffer
37						 * invalidation */
38	struct xfs_trans_res	tr_attrsetm;	/* set/create an attribute at
39						 * mount time */
40	struct xfs_trans_res	tr_attrsetrt;	/* set/create an attribute at
41						 * runtime */
42	struct xfs_trans_res	tr_attrrm;	/* remove an attribute */
43	struct xfs_trans_res	tr_clearagi;	/* clear agi unlinked bucket */
44	struct xfs_trans_res	tr_growrtalloc;	/* grow realtime allocations */
45	struct xfs_trans_res	tr_growrtzero;	/* grow realtime zeroing */
46	struct xfs_trans_res	tr_growrtfree;	/* grow realtime freeing */
47	struct xfs_trans_res	tr_qm_setqlim;	/* adjust quota limits */
48	struct xfs_trans_res	tr_qm_dqalloc;	/* allocate quota on disk */
49	struct xfs_trans_res	tr_qm_quotaoff;	/* turn quota off */
50	struct xfs_trans_res	tr_qm_equotaoff;/* end of turn quota off */
51	struct xfs_trans_res	tr_sb;		/* modify superblock */
52	struct xfs_trans_res	tr_fsyncts;	/* update timestamps on fsync */
53};
54
55/* shorthand way of accessing reservation structure */
56#define M_RES(mp)	(&(mp)->m_resv)
57
58/*
59 * Per-directory log reservation for any directory change.
60 * dir blocks: (1 btree block per level + data block + free block) * dblock size
61 * bmap btree: (levels + 2) * max depth * block size
62 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
63 * size, so account for that in the DAENTER macros.
64 */
65#define	XFS_DIROP_LOG_RES(mp)	\
66	(XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
67	 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
68#define	XFS_DIROP_LOG_COUNT(mp)	\
69	(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
70	 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
71
72/*
73 * Various log count values.
74 */
75#define	XFS_DEFAULT_LOG_COUNT		1
76#define	XFS_DEFAULT_PERM_LOG_COUNT	2
77#define	XFS_ITRUNCATE_LOG_COUNT		2
78#define	XFS_ITRUNCATE_LOG_COUNT_REFLINK	8
79#define XFS_INACTIVE_LOG_COUNT		2
80#define	XFS_CREATE_LOG_COUNT		2
81#define	XFS_CREATE_TMPFILE_LOG_COUNT	2
82#define	XFS_MKDIR_LOG_COUNT		3
83#define	XFS_SYMLINK_LOG_COUNT		3
84#define	XFS_REMOVE_LOG_COUNT		2
85#define	XFS_LINK_LOG_COUNT		2
86#define	XFS_RENAME_LOG_COUNT		2
87#define	XFS_WRITE_LOG_COUNT		2
88#define	XFS_WRITE_LOG_COUNT_REFLINK	8
89#define	XFS_ADDAFORK_LOG_COUNT		2
90#define	XFS_ATTRINVAL_LOG_COUNT		1
91#define	XFS_ATTRSET_LOG_COUNT		3
92#define	XFS_ATTRRM_LOG_COUNT		3
93
94void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
95uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops);
96
97#endif	/* __XFS_TRANS_RESV_H__ */
98