// 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_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_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_ADDAFORK_LOG_COUNT 2
#define XFS_ATTRINVAL_LOG_COUNT 1
#define XFS_ATTRSET_LOG_COUNT 3
#define XFS_ATTRRM_LOG_COUNT 3
/*
* Original log operation counts were overestimated in the early days of
* reflink. These are retained here purely for minimum log size calculations
* and must not be used for runtime reservations.
*/
#define XFS_ITRUNCATE_LOG_COUNT_REFLINK 8
#define XFS_WRITE_LOG_COUNT_REFLINK 8
void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
uint xfs_allocfree_block_count(struct xfs_mount *mp, uint num_ops);
unsigned int xfs_calc_itruncate_reservation_minlogsize(struct xfs_mount *mp);
unsigned int xfs_calc_write_reservation_minlogsize(struct xfs_mount *mp);
unsigned int xfs_calc_qm_dqalloc_reservation_minlogsize(struct xfs_mount *mp);
#endif /* __XFS_TRANS_RESV_H__ */
Codebase Browser
linux