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/* * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #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_sbchange; /* change quota flags */ 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_qm_quotaoff; /* turn quota off */ struct xfs_trans_res tr_qm_equotaoff;/* end of turn quota off */ 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-extent log reservation for the allocation btree changes * involved in freeing or allocating an extent. * 2 trees * (2 blocks/level * max depth - 1) * block size */ #define XFS_ALLOCFREE_LOG_RES(mp,nx) \ ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1))) #define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \ ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1))) /* * 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 void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); #endif /* __XFS_TRANS_RESV_H__ */
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