[linux-2.6-block.git] / fs / xfs / libxfs / xfs_trans_resv.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#ifndef	__XFS_TRANS_RESV_H__
#define	__XFS_TRANS_RESV_H__

struct xfs_mount;

/*
 * structure for maintaining pre-calculated transaction reservations.
 */
struct xfs_trans_res {
	uint	tr_logres;	/* log space unit in bytes per log ticket */
	int	tr_logcount;	/* number of log operations per log ticket */
	int	tr_logflags;	/* log flags, currently only used for indicating
				 * a reservation request is permanent or not */
};

struct xfs_trans_resv {
	struct xfs_trans_res	tr_write;	/* extent alloc trans */
	struct xfs_trans_res	tr_itruncate;	/* truncate trans */
	struct xfs_trans_res	tr_rename;	/* rename trans */
	struct xfs_trans_res	tr_link;	/* link trans */
	struct xfs_trans_res	tr_remove;	/* unlink trans */
	struct xfs_trans_res	tr_symlink;	/* symlink trans */
	struct xfs_trans_res	tr_create;	/* create trans */
	struct xfs_trans_res	tr_create_tmpfile; /* create O_TMPFILE trans */
	struct xfs_trans_res	tr_mkdir;	/* mkdir trans */
	struct xfs_trans_res	tr_ifree;	/* inode free trans */
	struct xfs_trans_res	tr_ichange;	/* inode update trans */
	struct xfs_trans_res	tr_growdata;	/* fs data section grow trans */
	struct xfs_trans_res	tr_addafork;	/* add inode attr fork trans */
	struct xfs_trans_res	tr_writeid;	/* write setuid/setgid file */
	struct xfs_trans_res	tr_attrinval;	/* attr fork buffer
						 * invalidation */
	struct xfs_trans_res	tr_attrsetm;	/* set/create an attribute at
						 * mount time */
	struct xfs_trans_res	tr_attrsetrt;	/* set/create an attribute at
						 * runtime */
	struct xfs_trans_res	tr_attrrm;	/* remove an attribute */
	struct xfs_trans_res	tr_clearagi;	/* clear agi unlinked bucket */
	struct xfs_trans_res	tr_growrtalloc;	/* grow realtime allocations */
	struct xfs_trans_res	tr_growrtzero;	/* grow realtime zeroing */
	struct xfs_trans_res	tr_growrtfree;	/* grow realtime freeing */
	struct xfs_trans_res	tr_qm_setqlim;	/* adjust quota limits */
	struct xfs_trans_res	tr_qm_dqalloc;	/* allocate quota on disk */
	struct xfs_trans_res	tr_qm_quotaoff;	/* turn quota off */
	struct xfs_trans_res	tr_qm_equotaoff;/* end of turn quota off */
	struct xfs_trans_res	tr_sb;		/* modify superblock */
	struct xfs_trans_res	tr_fsyncts;	/* update timestamps on fsync */
};

/* shorthand way of accessing reservation structure */
#define M_RES(mp)	(&(mp)->m_resv)

/*
 * Per-directory log reservation for any directory change.
 * dir blocks: (1 btree block per level + data block + free block) * dblock size
 * bmap btree: (levels + 2) * max depth * block size
 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
 * size, so account for that in the DAENTER macros.
 */
#define	XFS_DIROP_LOG_RES(mp)	\
	(XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
	 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
#define	XFS_DIROP_LOG_COUNT(mp)	\
	(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
	 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)

/*
 * Various log count values.
 */
#define	XFS_DEFAULT_LOG_COUNT		1
#define	XFS_DEFAULT_PERM_LOG_COUNT	2
#define	XFS_ITRUNCATE_LOG_COUNT		2
#define	XFS_ITRUNCATE_LOG_COUNT_REFLINK	8
#define XFS_INACTIVE_LOG_COUNT		2
#define	XFS_CREATE_LOG_COUNT		2
#define	XFS_CREATE_TMPFILE_LOG_COUNT	2
#define	XFS_MKDIR_LOG_COUNT		3
#define	XFS_SYMLINK_LOG_COUNT		3
#define	XFS_REMOVE_LOG_COUNT		2
#define	XFS_LINK_LOG_COUNT		2
#define	XFS_RENAME_LOG_COUNT		2
#define	XFS_WRITE_LOG_COUNT		2
#define	XFS_WRITE_LOG_COUNT_REFLINK	8
#define	XFS_ADDAFORK_LOG_COUNT		2
#define	XFS_ATTRINVAL_LOG_COUNT		1
#define	XFS_ATTRSET_LOG_COUNT		3
#define	XFS_ATTRRM_LOG_COUNT		3

void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops);

#endif	/* __XFS_TRANS_RESV_H__ */
Commit	Line	Data
0b61f8a4	1	// SPDX-License-Identifier: GPL-2.0
7fd36c44 DC	2	/*
	3	* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
	4	* All Rights Reserved.
7fd36c44 DC	5	*/
	6	#ifndef __XFS_TRANS_RESV_H__
	7	#define __XFS_TRANS_RESV_H__
	8
	9	struct xfs_mount;
	10
	11	/*
	12	* structure for maintaining pre-calculated transaction reservations.
	13	*/
0eadd102 JL	14	struct 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
7fd36c44	21	struct xfs_trans_resv {
0eadd102 JL	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 */
99b6436b	29	struct xfs_trans_res tr_create_tmpfile; /* create O_TMPFILE trans */
0eadd102 JL	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 */
0eadd102 JL	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 */
0eadd102 JL	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 */
20996c93	52	struct xfs_trans_res tr_fsyncts; /* update timestamps on fsync */
7fd36c44 DC	53	};
7fd36c44 DC	54
3d3c8b52 JL	55	/* shorthand way of accessing reservation structure */
	56	#define M_RES(mp) (&(mp)->m_resv)
	57
7fd36c44 DC	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
7fd36c44 DC	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
80de462e	78	#define XFS_ITRUNCATE_LOG_COUNT_REFLINK 8
7fd36c44 DC	79	#define XFS_INACTIVE_LOG_COUNT 2
7fd36c44 DC	80	#define XFS_CREATE_LOG_COUNT 2
99b6436b	81	#define XFS_CREATE_TMPFILE_LOG_COUNT 2
7fd36c44 DC	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
80de462e	88	#define XFS_WRITE_LOG_COUNT_REFLINK 8
7fd36c44 DC	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
	94	void xfs_trans_resv_calc(struct xfs_mount mp, struct xfs_trans_resv resp);
1946b91c	95	uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops);
7fd36c44 DC	96
7fd36c44 DC	97	#endif /* __XFS_TRANS_RESV_H__ */