// 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 */ struct xfs_trans_res tr_atomic_ioend; /* untorn write completion */
};
/* 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)
/* * 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
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