1 /* 2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_TRANS_RESV_H__ 19 #define __XFS_TRANS_RESV_H__ 20 21 struct xfs_mount; 22 23 /* 24 * structure for maintaining pre-calculated transaction reservations. 25 */ 26 struct xfs_trans_res { 27 uint tr_logres; /* log space unit in bytes per log ticket */ 28 int tr_logcount; /* number of log operations per log ticket */ 29 int tr_logflags; /* log flags, currently only used for indicating 30 * a reservation request is permanent or not */ 31 }; 32 33 struct xfs_trans_resv { 34 struct xfs_trans_res tr_write; /* extent alloc trans */ 35 struct xfs_trans_res tr_itruncate; /* truncate trans */ 36 struct xfs_trans_res tr_rename; /* rename trans */ 37 struct xfs_trans_res tr_link; /* link trans */ 38 struct xfs_trans_res tr_remove; /* unlink trans */ 39 struct xfs_trans_res tr_symlink; /* symlink trans */ 40 struct xfs_trans_res tr_create; /* create trans */ 41 struct xfs_trans_res tr_create_tmpfile; /* create O_TMPFILE trans */ 42 struct xfs_trans_res tr_mkdir; /* mkdir trans */ 43 struct xfs_trans_res tr_ifree; /* inode free trans */ 44 struct xfs_trans_res tr_ichange; /* inode update trans */ 45 struct xfs_trans_res tr_growdata; /* fs data section grow trans */ 46 struct xfs_trans_res tr_addafork; /* add inode attr fork trans */ 47 struct xfs_trans_res tr_writeid; /* write setuid/setgid file */ 48 struct xfs_trans_res tr_attrinval; /* attr fork buffer 49 * invalidation */ 50 struct xfs_trans_res tr_attrsetm; /* set/create an attribute at 51 * mount time */ 52 struct xfs_trans_res tr_attrsetrt; /* set/create an attribute at 53 * runtime */ 54 struct xfs_trans_res tr_attrrm; /* remove an attribute */ 55 struct xfs_trans_res tr_clearagi; /* clear agi unlinked bucket */ 56 struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */ 57 struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */ 58 struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */ 59 struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */ 60 struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */ 61 struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */ 62 struct xfs_trans_res tr_qm_equotaoff;/* end of turn quota off */ 63 struct xfs_trans_res tr_sb; /* modify superblock */ 64 struct xfs_trans_res tr_fsyncts; /* update timestamps on fsync */ 65 }; 66 67 /* shorthand way of accessing reservation structure */ 68 #define M_RES(mp) (&(mp)->m_resv) 69 70 /* 71 * Per-directory log reservation for any directory change. 72 * dir blocks: (1 btree block per level + data block + free block) * dblock size 73 * bmap btree: (levels + 2) * max depth * block size 74 * v2 directory blocks can be fragmented below the dirblksize down to the fsb 75 * size, so account for that in the DAENTER macros. 76 */ 77 #define XFS_DIROP_LOG_RES(mp) \ 78 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ 79 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) 80 #define XFS_DIROP_LOG_COUNT(mp) \ 81 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ 82 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) 83 84 /* 85 * Various log count values. 86 */ 87 #define XFS_DEFAULT_LOG_COUNT 1 88 #define XFS_DEFAULT_PERM_LOG_COUNT 2 89 #define XFS_ITRUNCATE_LOG_COUNT 2 90 #define XFS_ITRUNCATE_LOG_COUNT_REFLINK 8 91 #define XFS_INACTIVE_LOG_COUNT 2 92 #define XFS_CREATE_LOG_COUNT 2 93 #define XFS_CREATE_TMPFILE_LOG_COUNT 2 94 #define XFS_MKDIR_LOG_COUNT 3 95 #define XFS_SYMLINK_LOG_COUNT 3 96 #define XFS_REMOVE_LOG_COUNT 2 97 #define XFS_LINK_LOG_COUNT 2 98 #define XFS_RENAME_LOG_COUNT 2 99 #define XFS_WRITE_LOG_COUNT 2 100 #define XFS_WRITE_LOG_COUNT_REFLINK 8 101 #define XFS_ADDAFORK_LOG_COUNT 2 102 #define XFS_ATTRINVAL_LOG_COUNT 1 103 #define XFS_ATTRSET_LOG_COUNT 3 104 #define XFS_ATTRRM_LOG_COUNT 3 105 106 void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); 107 uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops); 108 109 #endif /* __XFS_TRANS_RESV_H__ */ 110