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 9 struct xfs_mount; 10 11 /* 12 * structure for maintaining pre-calculated transaction reservations. 13 */ 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 21 struct 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_sb; /* modify superblock */ 50 struct xfs_trans_res tr_fsyncts; /* update timestamps on fsync */ 51 struct xfs_trans_res tr_atomic_ioend; /* untorn write completion */ 52 }; 53 54 /* shorthand way of accessing reservation structure */ 55 #define M_RES(mp) (&(mp)->m_resv) 56 57 /* 58 * Per-directory log reservation for any directory change. 59 * dir blocks: (1 btree block per level + data block + free block) * dblock size 60 * bmap btree: (levels + 2) * max depth * block size 61 * v2 directory blocks can be fragmented below the dirblksize down to the fsb 62 * size, so account for that in the DAENTER macros. 63 */ 64 #define XFS_DIROP_LOG_RES(mp) \ 65 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ 66 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) 67 #define XFS_DIROP_LOG_COUNT(mp) \ 68 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ 69 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) 70 71 /* 72 * Various log count values. 73 */ 74 #define XFS_DEFAULT_LOG_COUNT 1 75 #define XFS_DEFAULT_PERM_LOG_COUNT 2 76 #define XFS_ITRUNCATE_LOG_COUNT 2 77 #define XFS_INACTIVE_LOG_COUNT 2 78 #define XFS_CREATE_LOG_COUNT 2 79 #define XFS_CREATE_TMPFILE_LOG_COUNT 2 80 #define XFS_MKDIR_LOG_COUNT 3 81 #define XFS_SYMLINK_LOG_COUNT 3 82 #define XFS_REMOVE_LOG_COUNT 2 83 #define XFS_LINK_LOG_COUNT 2 84 #define XFS_RENAME_LOG_COUNT 2 85 #define XFS_WRITE_LOG_COUNT 2 86 #define XFS_ADDAFORK_LOG_COUNT 2 87 #define XFS_ATTRINVAL_LOG_COUNT 1 88 #define XFS_ATTRSET_LOG_COUNT 3 89 #define XFS_ATTRRM_LOG_COUNT 3 90 91 /* 92 * Original log operation counts were overestimated in the early days of 93 * reflink. These are retained here purely for minimum log size calculations 94 * and must not be used for runtime reservations. 95 */ 96 #define XFS_ITRUNCATE_LOG_COUNT_REFLINK 8 97 #define XFS_WRITE_LOG_COUNT_REFLINK 8 98 99 void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); 100 uint xfs_allocfree_block_count(struct xfs_mount *mp, uint num_ops); 101 102 unsigned int xfs_calc_finish_bui_reservation(struct xfs_mount *mp, 103 unsigned int nr_ops); 104 105 unsigned int xfs_calc_finish_efi_reservation(struct xfs_mount *mp, 106 unsigned int nr_ops); 107 unsigned int xfs_calc_finish_rt_efi_reservation(struct xfs_mount *mp, 108 unsigned int nr_ops); 109 110 unsigned int xfs_calc_finish_rui_reservation(struct xfs_mount *mp, 111 unsigned int nr_ops); 112 unsigned int xfs_calc_finish_rt_rui_reservation(struct xfs_mount *mp, 113 unsigned int nr_ops); 114 115 unsigned int xfs_calc_finish_cui_reservation(struct xfs_mount *mp, 116 unsigned int nr_ops); 117 unsigned int xfs_calc_finish_rt_cui_reservation(struct xfs_mount *mp, 118 unsigned int nr_ops); 119 120 unsigned int xfs_calc_itruncate_reservation_minlogsize(struct xfs_mount *mp); 121 unsigned int xfs_calc_write_reservation_minlogsize(struct xfs_mount *mp); 122 unsigned int xfs_calc_qm_dqalloc_reservation_minlogsize(struct xfs_mount *mp); 123 124 xfs_extlen_t xfs_calc_max_atomic_write_fsblocks(struct xfs_mount *mp); 125 xfs_extlen_t xfs_calc_atomic_write_log_geometry(struct xfs_mount *mp, 126 xfs_extlen_t blockcount, unsigned int *new_logres); 127 int xfs_calc_atomic_write_reservation(struct xfs_mount *mp, 128 xfs_extlen_t blockcount); 129 130 #endif /* __XFS_TRANS_RESV_H__ */ 131