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 }; 52 53 /* shorthand way of accessing reservation structure */ 54 #define M_RES(mp) (&(mp)->m_resv) 55 56 /* 57 * Per-directory log reservation for any directory change. 58 * dir blocks: (1 btree block per level + data block + free block) * dblock size 59 * bmap btree: (levels + 2) * max depth * block size 60 * v2 directory blocks can be fragmented below the dirblksize down to the fsb 61 * size, so account for that in the DAENTER macros. 62 */ 63 #define XFS_DIROP_LOG_RES(mp) \ 64 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ 65 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) 66 #define XFS_DIROP_LOG_COUNT(mp) \ 67 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ 68 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) 69 70 /* 71 * Various log count values. 72 */ 73 #define XFS_DEFAULT_LOG_COUNT 1 74 #define XFS_DEFAULT_PERM_LOG_COUNT 2 75 #define XFS_ITRUNCATE_LOG_COUNT 2 76 #define XFS_INACTIVE_LOG_COUNT 2 77 #define XFS_CREATE_LOG_COUNT 2 78 #define XFS_CREATE_TMPFILE_LOG_COUNT 2 79 #define XFS_MKDIR_LOG_COUNT 3 80 #define XFS_SYMLINK_LOG_COUNT 3 81 #define XFS_REMOVE_LOG_COUNT 2 82 #define XFS_LINK_LOG_COUNT 2 83 #define XFS_RENAME_LOG_COUNT 2 84 #define XFS_WRITE_LOG_COUNT 2 85 #define XFS_ADDAFORK_LOG_COUNT 2 86 #define XFS_ATTRINVAL_LOG_COUNT 1 87 #define XFS_ATTRSET_LOG_COUNT 3 88 #define XFS_ATTRRM_LOG_COUNT 3 89 90 /* 91 * Original log operation counts were overestimated in the early days of 92 * reflink. These are retained here purely for minimum log size calculations 93 * and must not be used for runtime reservations. 94 */ 95 #define XFS_ITRUNCATE_LOG_COUNT_REFLINK 8 96 #define XFS_WRITE_LOG_COUNT_REFLINK 8 97 98 void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); 99 uint xfs_allocfree_block_count(struct xfs_mount *mp, uint num_ops); 100 101 unsigned int xfs_calc_itruncate_reservation_minlogsize(struct xfs_mount *mp); 102 unsigned int xfs_calc_write_reservation_minlogsize(struct xfs_mount *mp); 103 unsigned int xfs_calc_qm_dqalloc_reservation_minlogsize(struct xfs_mount *mp); 104 105 #endif /* __XFS_TRANS_RESV_H__ */ 106