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Diffstat (limited to 'fs/xfs/xfs_trans.h')
| -rw-r--r-- | fs/xfs/xfs_trans.h | 1042 |
1 files changed, 1042 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h new file mode 100644 index 000000000000..bd37ccb85e76 --- /dev/null +++ b/fs/xfs/xfs_trans.h @@ -0,0 +1,1042 @@ +/* + * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 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. + * + * Further, this software is distributed without any warranty that it is + * free of the rightful claim of any third person regarding infringement + * or the like. Any license provided herein, whether implied or + * otherwise, applies only to this software file. Patent licenses, if + * any, provided herein do not apply to combinations of this program with + * other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, + * Mountain View, CA 94043, or: + * + * http://www.sgi.com + * + * For further information regarding this notice, see: + * + * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + */ +#ifndef __XFS_TRANS_H__ +#define __XFS_TRANS_H__ + +/* + * This is the structure written in the log at the head of + * every transaction. It identifies the type and id of the + * transaction, and contains the number of items logged by + * the transaction so we know how many to expect during recovery. + * + * Do not change the below structure without redoing the code in + * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). + */ +typedef struct xfs_trans_header { + uint th_magic; /* magic number */ + uint th_type; /* transaction type */ + __int32_t th_tid; /* transaction id (unused) */ + uint th_num_items; /* num items logged by trans */ +} xfs_trans_header_t; + +#define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ + +/* + * Log item types. + */ +#define XFS_LI_5_3_BUF 0x1234 /* v1 bufs, 1-block inode buffers */ +#define XFS_LI_5_3_INODE 0x1235 /* 1-block inode buffers */ +#define XFS_LI_EFI 0x1236 +#define XFS_LI_EFD 0x1237 +#define XFS_LI_IUNLINK 0x1238 +#define XFS_LI_6_1_INODE 0x1239 /* 4K non-aligned inode bufs */ +#define XFS_LI_6_1_BUF 0x123a /* v1, 4K inode buffers */ +#define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ +#define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ +#define XFS_LI_DQUOT 0x123d +#define XFS_LI_QUOTAOFF 0x123e + +/* + * Transaction types. Used to distinguish types of buffers. + */ +#define XFS_TRANS_SETATTR_NOT_SIZE 1 +#define XFS_TRANS_SETATTR_SIZE 2 +#define XFS_TRANS_INACTIVE 3 +#define XFS_TRANS_CREATE 4 +#define XFS_TRANS_CREATE_TRUNC 5 +#define XFS_TRANS_TRUNCATE_FILE 6 +#define XFS_TRANS_REMOVE 7 +#define XFS_TRANS_LINK 8 +#define XFS_TRANS_RENAME 9 +#define XFS_TRANS_MKDIR 10 +#define XFS_TRANS_RMDIR 11 +#define XFS_TRANS_SYMLINK 12 +#define XFS_TRANS_SET_DMATTRS 13 +#define XFS_TRANS_GROWFS 14 +#define XFS_TRANS_STRAT_WRITE 15 +#define XFS_TRANS_DIOSTRAT 16 +#define XFS_TRANS_WRITE_SYNC 17 +#define XFS_TRANS_WRITEID 18 +#define XFS_TRANS_ADDAFORK 19 +#define XFS_TRANS_ATTRINVAL 20 +#define XFS_TRANS_ATRUNCATE 21 +#define XFS_TRANS_ATTR_SET 22 +#define XFS_TRANS_ATTR_RM 23 +#define XFS_TRANS_ATTR_FLAG 24 +#define XFS_TRANS_CLEAR_AGI_BUCKET 25 +#define XFS_TRANS_QM_SBCHANGE 26 +/* + * Dummy entries since we use the transaction type to index into the + * trans_type[] in xlog_recover_print_trans_head() + */ +#define XFS_TRANS_DUMMY1 27 +#define XFS_TRANS_DUMMY2 28 +#define XFS_TRANS_QM_QUOTAOFF 29 +#define XFS_TRANS_QM_DQALLOC 30 +#define XFS_TRANS_QM_SETQLIM 31 +#define XFS_TRANS_QM_DQCLUSTER 32 +#define XFS_TRANS_QM_QINOCREATE 33 +#define XFS_TRANS_QM_QUOTAOFF_END 34 +#define XFS_TRANS_SB_UNIT 35 +#define XFS_TRANS_FSYNC_TS 36 +#define XFS_TRANS_GROWFSRT_ALLOC 37 +#define XFS_TRANS_GROWFSRT_ZERO 38 +#define XFS_TRANS_GROWFSRT_FREE 39 +#define XFS_TRANS_SWAPEXT 40 +/* new transaction types need to be reflected in xfs_logprint(8) */ + + +#ifdef __KERNEL__ +struct xfs_buf; +struct xfs_buftarg; +struct xfs_efd_log_item; +struct xfs_efi_log_item; +struct xfs_inode; +struct xfs_item_ops; +struct xfs_log_iovec; +struct xfs_log_item; +struct xfs_log_item_desc; +struct xfs_mount; +struct xfs_trans; +struct xfs_dquot_acct; + +typedef struct xfs_ail_entry { + struct xfs_log_item *ail_forw; /* AIL forw pointer */ + struct xfs_log_item *ail_back; /* AIL back pointer */ +} xfs_ail_entry_t; + +/* + * This structure is passed as a parameter to xfs_trans_push_ail() + * and is used to track the what LSN the waiting processes are + * waiting to become unused. + */ +typedef struct xfs_ail_ticket { + xfs_lsn_t at_lsn; /* lsn waitin for */ + struct xfs_ail_ticket *at_forw; /* wait list ptr */ + struct xfs_ail_ticket *at_back; /* wait list ptr */ + sv_t at_sema; /* wait sema */ +} xfs_ail_ticket_t; + + +typedef struct xfs_log_item { + xfs_ail_entry_t li_ail; /* AIL pointers */ + xfs_lsn_t li_lsn; /* last on-disk lsn */ + struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ + struct xfs_mount *li_mountp; /* ptr to fs mount */ + uint li_type; /* item type */ + uint li_flags; /* misc flags */ + struct xfs_log_item *li_bio_list; /* buffer item list */ + void (*li_cb)(struct xfs_buf *, + struct xfs_log_item *); + /* buffer item iodone */ + /* callback func */ + struct xfs_item_ops *li_ops; /* function list */ +} xfs_log_item_t; + +#define XFS_LI_IN_AIL 0x1 +#define XFS_LI_ABORTED 0x2 + +typedef struct xfs_item_ops { + uint (*iop_size)(xfs_log_item_t *); + void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); + void (*iop_pin)(xfs_log_item_t *); + void (*iop_unpin)(xfs_log_item_t *, int); + void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *); + uint (*iop_trylock)(xfs_log_item_t *); + void (*iop_unlock)(xfs_log_item_t *); + xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); + void (*iop_push)(xfs_log_item_t *); + void (*iop_abort)(xfs_log_item_t *); + void (*iop_pushbuf)(xfs_log_item_t *); + void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); +} xfs_item_ops_t; + +#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) +#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) +#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) +#define IOP_UNPIN(ip, flags) (*(ip)->li_ops->iop_unpin)(ip, flags) +#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp) +#define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip) +#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) +#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) +#define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip) +#define IOP_ABORT(ip) (*(ip)->li_ops->iop_abort)(ip) +#define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip) +#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn) + +/* + * Return values for the IOP_TRYLOCK() routines. + */ +#define XFS_ITEM_SUCCESS 0 +#define XFS_ITEM_PINNED 1 +#define XFS_ITEM_LOCKED 2 +#define XFS_ITEM_FLUSHING 3 +#define XFS_ITEM_PUSHBUF 4 + +#endif /* __KERNEL__ */ + +/* + * This structure is used to track log items associated with + * a transaction. It points to the log item and keeps some + * flags to track the state of the log item. It also tracks + * the amount of space needed to log the item it describes + * once we get to commit processing (see xfs_trans_commit()). + */ +typedef struct xfs_log_item_desc { + xfs_log_item_t *lid_item; + ushort lid_size; + unsigned char lid_flags; + unsigned char lid_index; +} xfs_log_item_desc_t; + +#define XFS_LID_DIRTY 0x1 +#define XFS_LID_PINNED 0x2 +#define XFS_LID_BUF_STALE 0x8 + +/* + * This structure is used to maintain a chunk list of log_item_desc + * structures. The free field is a bitmask indicating which descriptors + * in this chunk's array are free. The unused field is the first value + * not used since this chunk was allocated. + */ +#define XFS_LIC_NUM_SLOTS 15 +typedef struct xfs_log_item_chunk { + struct xfs_log_item_chunk *lic_next; + ushort lic_free; + ushort lic_unused; + xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS]; +} xfs_log_item_chunk_t; + +#define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1) +#define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1) + + +/* + * Initialize the given chunk. Set the chunk's free descriptor mask + * to indicate that all descriptors are free. The caller gets to set + * lic_unused to the right value (0 matches all free). The + * lic_descs.lid_index values are set up as each desc is allocated. + */ +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT) +void xfs_lic_init(xfs_log_item_chunk_t *cp); +#define XFS_LIC_INIT(cp) xfs_lic_init(cp) +#else +#define XFS_LIC_INIT(cp) ((cp)->lic_free = XFS_LIC_FREEMASK) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT_SLOT) +void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot); +#define XFS_LIC_INIT_SLOT(cp,slot) xfs_lic_init_slot(cp, slot) +#else +#define XFS_LIC_INIT_SLOT(cp,slot) \ + ((cp)->lic_descs[slot].lid_index = (unsigned char)(slot)) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_VACANCY) +int xfs_lic_vacancy(xfs_log_item_chunk_t *cp); +#define XFS_LIC_VACANCY(cp) xfs_lic_vacancy(cp) +#else +#define XFS_LIC_VACANCY(cp) (((cp)->lic_free) & XFS_LIC_FREEMASK) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ALL_FREE) +void xfs_lic_all_free(xfs_log_item_chunk_t *cp); +#define XFS_LIC_ALL_FREE(cp) xfs_lic_all_free(cp) +#else +#define XFS_LIC_ALL_FREE(cp) ((cp)->lic_free = XFS_LIC_FREEMASK) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ARE_ALL_FREE) +int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp); +#define XFS_LIC_ARE_ALL_FREE(cp) xfs_lic_are_all_free(cp) +#else +#define XFS_LIC_ARE_ALL_FREE(cp) (((cp)->lic_free & XFS_LIC_FREEMASK) ==\ + XFS_LIC_FREEMASK) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ISFREE) +int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot); +#define XFS_LIC_ISFREE(cp,slot) xfs_lic_isfree(cp,slot) +#else +#define XFS_LIC_ISFREE(cp,slot) ((cp)->lic_free & (1 << (slot))) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_CLAIM) +void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot); +#define XFS_LIC_CLAIM(cp,slot) xfs_lic_claim(cp,slot) +#else +#define XFS_LIC_CLAIM(cp,slot) ((cp)->lic_free &= ~(1 << (slot))) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_RELSE) +void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot); +#define XFS_LIC_RELSE(cp,slot) xfs_lic_relse(cp,slot) +#else +#define XFS_LIC_RELSE(cp,slot) ((cp)->lic_free |= 1 << (slot)) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_SLOT) +xfs_log_item_desc_t *xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot); +#define XFS_LIC_SLOT(cp,slot) xfs_lic_slot(cp,slot) +#else +#define XFS_LIC_SLOT(cp,slot) (&((cp)->lic_descs[slot])) +#endif +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_SLOT) +int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp); +#define XFS_LIC_DESC_TO_SLOT(dp) xfs_lic_desc_to_slot(dp) +#else +#define XFS_LIC_DESC_TO_SLOT(dp) ((uint)((dp)->lid_index)) +#endif +/* + * Calculate the address of a chunk given a descriptor pointer: + * dp - dp->lid_index give the address of the start of the lic_descs array. + * From this we subtract the offset of the lic_descs field in a chunk. + * All of this yields the address of the chunk, which is + * cast to a chunk pointer. + */ +#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_CHUNK) +xfs_log_item_chunk_t *xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp); +#define XFS_LIC_DESC_TO_CHUNK(dp) xfs_lic_desc_to_chunk(dp) +#else +#define XFS_LIC_DESC_TO_CHUNK(dp) ((xfs_log_item_chunk_t*) \ + (((xfs_caddr_t)((dp) - (dp)->lid_index)) -\ + (xfs_caddr_t)(((xfs_log_item_chunk_t*) \ + 0)->lic_descs))) +#endif + +#ifdef __KERNEL__ +/* + * This structure is used to maintain a list of block ranges that have been + * freed in the transaction. The ranges are listed in the perag[] busy list + * between when they're freed and the transaction is committed to disk. + */ + +typedef struct xfs_log_busy_slot { + xfs_agnumber_t lbc_ag; + ushort lbc_idx; /* index in perag.busy[] */ +} xfs_log_busy_slot_t; + +#define XFS_LBC_NUM_SLOTS 31 +typedef struct xfs_log_busy_chunk { + struct xfs_log_busy_chunk *lbc_next; + uint lbc_free; /* bitmask of free slots */ + ushort lbc_unused; /* first unused */ + xfs_log_busy_slot_t lbc_busy[XFS_LBC_NUM_SLOTS]; +} xfs_log_busy_chunk_t; + +#define XFS_LBC_MAX_SLOT (XFS_LBC_NUM_SLOTS - 1) +#define XFS_LBC_FREEMASK ((1U << XFS_LBC_NUM_SLOTS) - 1) + +#define XFS_LBC_INIT(cp) ((cp)->lbc_free = XFS_LBC_FREEMASK) +#define XFS_LBC_CLAIM(cp, slot) ((cp)->lbc_free &= ~(1 << (slot))) +#define XFS_LBC_SLOT(cp, slot) (&((cp)->lbc_busy[(slot)])) +#define XFS_LBC_VACANCY(cp) (((cp)->lbc_free) & XFS_LBC_FREEMASK) +#define XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot))) + +/* + * This is the type of function which can be given to xfs_trans_callback() + * to be called upon the transaction's commit to disk. + */ +typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *); + +/* + * This is the structure maintained for every active transaction. + */ +typedef struct xfs_trans { + unsigned int t_magic; /* magic number */ + xfs_log_callback_t t_logcb; /* log callback struct */ + struct xfs_trans *t_forw; /* async list pointers */ + struct xfs_trans *t_back; /* async list pointers */ + unsigned int t_type; /* transaction type */ + unsigned int t_log_res; /* amt of log space resvd */ + unsigned int t_log_count; /* count for perm log res */ + unsigned int t_blk_res; /* # of blocks resvd */ + unsigned int t_blk_res_used; /* # of resvd blocks used */ + unsigned int t_rtx_res; /* # of rt extents resvd */ + unsigned int t_rtx_res_used; /* # of resvd rt extents used */ + xfs_log_ticket_t t_ticket; /* log mgr ticket */ + sema_t t_sema; /* sema for commit completion */ + xfs_lsn_t t_lsn; /* log seq num of start of + * transaction. */ + xfs_lsn_t t_commit_lsn; /* log seq num of end of + * transaction. */ + struct xfs_mount *t_mountp; /* ptr to fs mount struct */ + struct xfs_dquot_acct *t_dqinfo; /* accting info for dquots */ + xfs_trans_callback_t t_callback; /* transaction callback */ + void *t_callarg; /* callback arg */ + unsigned int t_flags; /* misc flags */ + long t_icount_delta; /* superblock icount change */ + long t_ifree_delta; /* superblock ifree change */ + long t_fdblocks_delta; /* superblock fdblocks chg */ + long t_res_fdblocks_delta; /* on-disk only chg */ + long t_frextents_delta;/* superblock freextents chg*/ + long t_res_frextents_delta; /* on-disk only chg */ + long t_ag_freeblks_delta; /* debugging counter */ + long t_ag_flist_delta; /* debugging counter */ + long t_ag_btree_delta; /* debugging counter */ + long t_dblocks_delta;/* superblock dblocks change */ + long t_agcount_delta;/* superblock agcount change */ + long t_imaxpct_delta;/* superblock imaxpct change */ + long t_rextsize_delta;/* superblock rextsize chg */ + long t_rbmblocks_delta;/* superblock rbmblocks chg */ + long t_rblocks_delta;/* superblock rblocks change */ + long t_rextents_delta;/* superblocks rextents chg */ + long t_rextslog_delta;/* superblocks rextslog chg */ + unsigned int t_items_free; /* log item descs free */ + xfs_log_item_chunk_t t_items; /* first log item desc chunk */ + xfs_trans_header_t t_header; /* header for in-log trans */ + unsigned int t_busy_free; /* busy descs free */ + xfs_log_busy_chunk_t t_busy; /* busy/async free blocks */ + xfs_pflags_t t_pflags; /* saved pflags state */ +} xfs_trans_t; + +#endif /* __KERNEL__ */ + + +#define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */ +/* + * Values for t_flags. + */ +#define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */ +#define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */ +#define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */ +#define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ +#define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ +#define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ + +/* + * Values for call flags parameter. + */ +#define XFS_TRANS_NOSLEEP 0x1 +#define XFS_TRANS_WAIT 0x2 +#define XFS_TRANS_RELEASE_LOG_RES 0x4 +#define XFS_TRANS_ABORT 0x8 + +/* + * Field values for xfs_trans_mod_sb. + */ +#define XFS_TRANS_SB_ICOUNT 0x00000001 +#define XFS_TRANS_SB_IFREE 0x00000002 +#define XFS_TRANS_SB_FDBLOCKS 0x00000004 +#define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008 +#define XFS_TRANS_SB_FREXTENTS 0x00000010 +#define XFS_TRANS_SB_RES_FREXTENTS 0x00000020 +#define XFS_TRANS_SB_DBLOCKS 0x00000040 +#define XFS_TRANS_SB_AGCOUNT 0x00000080 +#define XFS_TRANS_SB_IMAXPCT 0x00000100 +#define XFS_TRANS_SB_REXTSIZE 0x00000200 +#define XFS_TRANS_SB_RBMBLOCKS 0x00000400 +#define XFS_TRANS_SB_RBLOCKS 0x00000800 +#define XFS_TRANS_SB_REXTENTS 0x00001000 +#define XFS_TRANS_SB_REXTSLOG 0x00002000 + + +/* + * Various log reservation values. + * These are based on the size of the file system block + * because that is what most transactions manipulate. + * Each adds in an additional 128 bytes per item logged to + * try to account for the overhead of the transaction mechanism. + * + * Note: + * Most of the reservations underestimate the number of allocation + * groups into which they could free extents in the xfs_bmap_finish() + * call. This is because the number in the worst case is quite high + * and quite unusual. In order to fix this we need to change + * xfs_bmap_finish() to free extents in only a single AG at a time. + * This will require changes to the EFI code as well, however, so that + * the EFI for the extents not freed is logged again in each transaction. + * See bug 261917. + */ + +/* + * 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) + +/* + * In a write transaction we can allocate a maximum of 2 + * extents. This gives: + * the inode getting the new extents: inode size + * the inode\'s bmap btree: max depth * block size + * the agfs of the ags from which the extents are allocated: 2 * sector + * the superblock free block counter: sector size + * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size + * And the bmap_finish transaction can free bmap blocks in a join: + * the agfs of the ags containing the blocks: 2 * sector size + * the agfls of the ags containing the blocks: 2 * sector size + * the super block free block counter: sector size + * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_WRITE_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ + (2 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 2) + \ + (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\ + ((2 * (mp)->m_sb.sb_sectsize) + \ + (2 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 2) + \ + (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) + +#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write) + +/* + * In truncating a file we free up to two extents at once. We can modify: + * the inode being truncated: inode size + * the inode\'s bmap btree: (max depth + 1) * block size + * And the bmap_finish transaction can free the blocks and bmap blocks: + * the agf for each of the ags: 4 * sector size + * the agfl for each of the ags: 4 * sector size + * the super block to reflect the freed blocks: sector size + * worst case split in allocation btrees per extent assuming 4 extents: + * 4 exts * 2 trees * (2 * max depth - 1) * block size + * the inode btree: max depth * blocksize + * the allocation btrees: 2 trees * (max depth - 1) * block size + */ +#define XFS_CALC_ITRUNCATE_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \ + (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ + ((4 * (mp)->m_sb.sb_sectsize) + \ + (4 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 4) + \ + (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \ + (128 * 5) + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) + +#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) + +/* + * In renaming a files we can modify: + * the four inodes involved: 4 * inode size + * the two directory btrees: 2 * (max depth + v2) * dir block size + * the two directory bmap btrees: 2 * max depth * block size + * And the bmap_finish transaction can free dir and bmap blocks (two sets + * of bmap blocks) giving: + * the agf for the ags in which the blocks live: 3 * sector size + * the agfl for the ags in which the blocks live: 3 * sector size + * the superblock for the free block count: sector size + * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_RENAME_LOG_RES(mp) \ + (MAX( \ + ((4 * (mp)->m_sb.sb_inodesize) + \ + (2 * XFS_DIROP_LOG_RES(mp)) + \ + (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \ + ((3 * (mp)->m_sb.sb_sectsize) + \ + (3 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 3) + \ + (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3)))))) + +#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename) + +/* + * For creating a link to an inode: + * the parent directory inode: inode size + * the linked inode: inode size + * the directory btree could split: (max depth + v2) * dir block size + * the directory bmap btree could join or split: (max depth + v2) * blocksize + * And the bmap_finish transaction can free some bmap blocks giving: + * the agf for the ag in which the blocks live: sector size + * the agfl for the ag in which the blocks live: sector size + * the superblock for the free block count: sector size + * the allocation btrees: 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_LINK_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_inodesize + \ + XFS_DIROP_LOG_RES(mp) + \ + (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ + ((mp)->m_sb.sb_sectsize + \ + (mp)->m_sb.sb_sectsize + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) + +#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link) + +/* + * For removing a directory entry we can modify: + * the parent directory inode: inode size + * the removed inode: inode size + * the directory btree could join: (max depth + v2) * dir block size + * the directory bmap btree could join or split: (max depth + v2) * blocksize + * And the bmap_finish transaction can free the dir and bmap blocks giving: + * the agf for the ag in which the blocks live: 2 * sector size + * the agfl for the ag in which the blocks live: 2 * sector size + * the superblock for the free block count: sector size + * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_REMOVE_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_inodesize + \ + XFS_DIROP_LOG_RES(mp) + \ + (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ + ((2 * (mp)->m_sb.sb_sectsize) + \ + (2 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 2) + \ + (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) + +#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove) + +/* + * For symlink we can modify: + * the parent directory inode: inode size + * the new inode: inode size + * the inode btree entry: 1 block + * the directory btree: (max depth + v2) * dir block size + * the directory inode\'s bmap btree: (max depth + v2) * block size + * the blocks for the symlink: 1 KB + * Or in the first xact we allocate some inodes giving: + * the agi and agf of the ag getting the new inodes: 2 * sectorsize + * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize + * the inode btree: max depth * blocksize + * the allocation btrees: 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_SYMLINK_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_inodesize + \ + XFS_FSB_TO_B(mp, 1) + \ + XFS_DIROP_LOG_RES(mp) + \ + 1024 + \ + (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \ + (2 * (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ + XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) + +#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) + +/* + * For create we can modify: + * the parent directory inode: inode size + * the new inode: inode size + * the inode btree entry: block size + * the superblock for the nlink flag: sector size + * the directory btree: (max depth + v2) * dir block size + * the directory inode\'s bmap btree: (max depth + v2) * block size + * Or in the first xact we allocate some inodes giving: + * the agi and agf of the ag getting the new inodes: 2 * sectorsize + * the superblock for the nlink flag: sector size + * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize + * the inode btree: max depth * blocksize + * the allocation btrees: 2 trees * (max depth - 1) * block size + */ +#define XFS_CALC_CREATE_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B(mp, 1) + \ + XFS_DIROP_LOG_RES(mp) + \ + (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \ + (3 * (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ + XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) + +#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) + +/* + * Making a new directory is the same as creating a new file. + */ +#define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp) + +#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir) + +/* + * In freeing an inode we can modify: + * the inode being freed: inode size + * the super block free inode counter: sector size + * the agi hash list and counters: sector size + * the inode btree entry: block size + * the on disk inode before ours in the agi hash list: inode cluster size + * the inode btree: max depth * blocksize + * the allocation btrees: 2 trees * (max depth - 1) * block size + */ +#define XFS_CALC_IFREE_LOG_RES(mp) \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_sectsize + \ + (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B((mp), 1) + \ + MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \ + (128 * 5) + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) + + +#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree) + +/* + * When only changing the inode we log the inode and possibly the superblock + * We also add a bit of slop for the transaction stuff. + */ +#define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_sectsize + 512) + +#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange) + +/* + * Growing the data section of the filesystem. + * superblock + * agi and agf + * allocation btrees + */ +#define XFS_CALC_GROWDATA_LOG_RES(mp) \ + ((mp)->m_sb.sb_sectsize * 3 + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) + +#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata) + +/* + * Growing the rt section of the filesystem. + * In the first set of transactions (ALLOC) we allocate space to the + * bitmap or summary files. + * superblock: sector size + * agf of the ag from which the extent is allocated: sector size + * bmap btree for bitmap/summary inode: max depth * blocksize + * bitmap/summary inode: inode size + * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize + */ +#define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \ + (2 * (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ + (mp)->m_sb.sb_inodesize + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * \ + (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) + +#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc) + +/* + * Growing the rt section of the filesystem. + * In the second set of transactions (ZERO) we zero the new metadata blocks. + * one bitmap/summary block: blocksize + */ +#define XFS_CALC_GROWRTZERO_LOG_RES(mp) \ + ((mp)->m_sb.sb_blocksize + 128) + +#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero) + +/* + * Growing the rt section of the filesystem. + * In the third set of transactions (FREE) we update metadata without + * allocating any new blocks. + * superblock: sector size + * bitmap inode: inode size + * summary inode: inode size + * one bitmap block: blocksize + * summary blocks: new summary size + */ +#define XFS_CALC_GROWRTFREE_LOG_RES(mp) \ + ((mp)->m_sb.sb_sectsize + \ + 2 * (mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_blocksize + \ + (mp)->m_rsumsize + \ + (128 * 5)) + +#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree) + +/* + * Logging the inode modification timestamp on a synchronous write. + * inode + */ +#define XFS_CALC_SWRITE_LOG_RES(mp) \ + ((mp)->m_sb.sb_inodesize + 128) + +#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) + +/* + * Logging the inode timestamps on an fsync -- same as SWRITE + * as long as SWRITE logs the entire inode core + */ +#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) + +/* + * Logging the inode mode bits when writing a setuid/setgid file + * inode + */ +#define XFS_CALC_WRITEID_LOG_RES(mp) \ + ((mp)->m_sb.sb_inodesize + 128) + +#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) + +/* + * Converting the inode from non-attributed to attributed. + * the inode being converted: inode size + * agf block and superblock (for block allocation) + * the new block (directory sized) + * bmap blocks for the new directory block + * allocation btrees + */ +#define XFS_CALC_ADDAFORK_LOG_RES(mp) \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_sectsize * 2 + \ + (mp)->m_dirblksize + \ + (XFS_DIR_IS_V1(mp) ? 0 : \ + XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1))) + \ + XFS_ALLOCFREE_LOG_RES(mp, 1) + \ + (128 * (4 + \ + (XFS_DIR_IS_V1(mp) ? 0 : \ + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \ + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) + +#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork) + +/* + * Removing the attribute fork of a file + * the inode being truncated: inode size + * the inode\'s bmap btree: max depth * block size + * And the bmap_finish transaction can free the blocks and bmap blocks: + * the agf for each of the ags: 4 * sector size + * the agfl for each of the ags: 4 * sector size + * the super block to reflect the freed blocks: sector size + * worst case split in allocation btrees per extent assuming 4 extents: + * 4 exts * 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_ATTRINVAL_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ + (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \ + ((4 * (mp)->m_sb.sb_sectsize) + \ + (4 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 4) + \ + (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4)))))) + +#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval) + +/* + * Setting an attribute. + * the inode getting the attribute + * the superblock for allocations + * the agfs extents are allocated from + * the attribute btree * max depth + * the inode allocation btree + * Since attribute transaction space is dependent on the size of the attribute, + * the calculation is done partially at mount time and partially at runtime. + */ +#define XFS_CALC_ATTRSET_LOG_RES(mp) \ + ((mp)->m_sb.sb_inodesize + \ + (mp)->m_sb.sb_sectsize + \ + XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ + (128 * (2 + XFS_DA_NODE_MAXDEPTH))) + +#define XFS_ATTRSET_LOG_RES(mp, ext) \ + ((mp)->m_reservations.tr_attrset + \ + (ext * (mp)->m_sb.sb_sectsize) + \ + (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \ + (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))))) + +/* + * Removing an attribute. + * the inode: inode size + * the attribute btree could join: max depth * block size + * the inode bmap btree could join or split: max depth * block size + * And the bmap_finish transaction can free the attr blocks freed giving: + * the agf for the ag in which the blocks live: 2 * sector size + * the agfl for the ag in which the blocks live: 2 * sector size + * the superblock for the free block count: sector size + * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size + */ +#define XFS_CALC_ATTRRM_LOG_RES(mp) \ + (MAX( \ + ((mp)->m_sb.sb_inodesize + \ + XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ + XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ + (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ + ((2 * (mp)->m_sb.sb_sectsize) + \ + (2 * (mp)->m_sb.sb_sectsize) + \ + (mp)->m_sb.sb_sectsize + \ + XFS_ALLOCFREE_LOG_RES(mp, 2) + \ + (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) + +#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm) + +/* + * Clearing a bad agino number in an agi hash bucket. + */ +#define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \ + ((mp)->m_sb.sb_sectsize + 128) + +#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi) + + +/* + * 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_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 + +/* + * Here we centralize the specification of XFS meta-data buffer + * reference count values. This determine how hard the buffer + * cache tries to hold onto the buffer. + */ +#define XFS_AGF_REF 4 +#define XFS_AGI_REF 4 +#define XFS_AGFL_REF 3 +#define XFS_INO_BTREE_REF 3 +#define XFS_ALLOC_BTREE_REF 2 +#define XFS_BMAP_BTREE_REF 2 +#define XFS_DIR_BTREE_REF 2 +#define XFS_ATTR_BTREE_REF 1 +#define XFS_INO_REF 1 +#define XFS_DQUOT_REF 1 + +#ifdef __KERNEL__ +/* + * XFS transaction mechanism exported interfaces that are + * actually macros. + */ +#define xfs_trans_get_log_res(tp) ((tp)->t_log_res) +#define xfs_trans_get_log_count(tp) ((tp)->t_log_count) +#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res) +#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) + +#ifdef DEBUG +#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (long)d) +#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (long)d) +#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (long)d) +#else +#define xfs_trans_agblocks_delta(tp, d) +#define xfs_trans_agflist_delta(tp, d) +#define xfs_trans_agbtree_delta(tp, d) +#endif + +/* + * XFS transaction mechanism exported interfaces. + */ +void xfs_trans_init(struct xfs_mount *); +xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint); +xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint); +xfs_trans_t *xfs_trans_dup(xfs_trans_t *); +int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint, + uint, uint); +void xfs_trans_callback(xfs_trans_t *, + void (*)(xfs_trans_t *, void *), void *); +void xfs_trans_mod_sb(xfs_trans_t *, uint, long); +struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t, + int, uint); +int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *, + struct xfs_buftarg *, xfs_daddr_t, int, uint, + struct xfs_buf **); +struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); + +void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); +void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); +void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); +int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *, + xfs_ino_t , uint, uint, struct xfs_inode **); +void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint); +void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *); +void xfs_trans_ihold_release(xfs_trans_t *, struct xfs_inode *); +void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint); +void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); +struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint); +void xfs_efi_release(struct xfs_efi_log_item *, uint); +void xfs_trans_log_efi_extent(xfs_trans_t *, + struct xfs_efi_log_item *, + xfs_fsblock_t, + xfs_extlen_t); +struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *, + struct xfs_efi_log_item *, + uint); +void xfs_trans_log_efd_extent(xfs_trans_t *, + struct xfs_efd_log_item *, + xfs_fsblock_t, + xfs_extlen_t); +int xfs_trans_commit(xfs_trans_t *, uint flags, xfs_lsn_t *); +void xfs_trans_cancel(xfs_trans_t *, int); +void xfs_trans_ail_init(struct xfs_mount *); +xfs_lsn_t xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t); +xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *); +void xfs_trans_unlocked_item(struct xfs_mount *, + xfs_log_item_t *); +xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp, + xfs_agnumber_t ag, + xfs_extlen_t idx); + +#endif /* __KERNEL__ */ + +#endif /* __XFS_TRANS_H__ */ |