X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_trans.h;h=775249a54f6f9dc06584e6fe69617c6afa524697;hb=c0eae66ece40bdb8cd88c5106834b71a1c9f421c;hp=bd37ccb85e76d30f98d2d61e6c7b79b47a4d9f26;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index bd37ccb..775249a 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -1,37 +1,25 @@ /* - * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. + * 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 version 2 of the GNU General Public License as + * 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. + * 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. * - * 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/ + * 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_H__ #define __XFS_TRANS_H__ +struct xfs_log_item; + /* * This is the structure written in the log at the head of * every transaction. It identifies the type and id of the @@ -53,13 +41,9 @@ typedef struct xfs_trans_header { /* * 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 @@ -112,98 +96,10 @@ typedef struct xfs_trans_header { #define XFS_TRANS_GROWFSRT_ZERO 38 #define XFS_TRANS_GROWFSRT_FREE 39 #define XFS_TRANS_SWAPEXT 40 +#define XFS_TRANS_SB_COUNT 41 +#define XFS_TRANS_TYPE_MAX 41 /* 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 @@ -212,7 +108,7 @@ typedef struct xfs_item_ops { * once we get to commit processing (see xfs_trans_commit()). */ typedef struct xfs_log_item_desc { - xfs_log_item_t *lid_item; + struct xfs_log_item *lid_item; ushort lid_size; unsigned char lid_flags; unsigned char lid_index; @@ -246,68 +142,57 @@ typedef struct xfs_log_item_chunk { * 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 +static inline void xfs_lic_init(xfs_log_item_chunk_t *cp) +{ + cp->lic_free = XFS_LIC_FREEMASK; +} + +static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot) +{ + cp->lic_descs[slot].lid_index = (unsigned char)(slot); +} + +static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp) +{ + return cp->lic_free & XFS_LIC_FREEMASK; +} + +static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp) +{ + cp->lic_free = XFS_LIC_FREEMASK; +} + +static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp) +{ + return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK); +} + +static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot) +{ + return (cp->lic_free & (1 << slot)); +} + +static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot) +{ + cp->lic_free &= ~(1 << slot); +} + +static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot) +{ + cp->lic_free |= 1 << slot; +} + +static inline xfs_log_item_desc_t * +xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot) +{ + return &(cp->lic_descs[slot]); +} + +static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp) +{ + return (uint)dp->lid_index; +} + /* * 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. @@ -315,104 +200,13 @@ int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp); * 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__ */ - +static inline xfs_log_item_chunk_t * +xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp) +{ + return (xfs_log_item_chunk_t*) \ + (((xfs_caddr_t)((dp) - (dp)->lid_index)) - \ + (xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs)); +} #define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */ /* @@ -498,7 +292,7 @@ typedef struct xfs_trans { * 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 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 @@ -527,7 +321,7 @@ typedef struct xfs_trans { /* * 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 + * 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 @@ -549,7 +343,7 @@ typedef struct xfs_trans { (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) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) @@ -637,8 +431,8 @@ typedef struct xfs_trans { * 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 + * 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 @@ -655,9 +449,9 @@ typedef struct xfs_trans { (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_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \ XFS_ALLOCFREE_LOG_RES(mp, 1) + \ - (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) @@ -669,7 +463,7 @@ typedef struct xfs_trans { * 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 + * 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 @@ -687,9 +481,9 @@ typedef struct xfs_trans { (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_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \ XFS_ALLOCFREE_LOG_RES(mp, 1) + \ - (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) @@ -719,7 +513,7 @@ typedef struct xfs_trans { 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) + \ + (128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \ XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) @@ -833,12 +627,9 @@ typedef struct xfs_trans { ((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_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) + \ + (128 * (4 + (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) @@ -846,7 +637,7 @@ typedef struct xfs_trans { /* * Removing the attribute fork of a file * the inode being truncated: inode size - * the inode\'s bmap btree: max depth * block 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 @@ -959,6 +750,157 @@ typedef struct xfs_trans { #define XFS_DQUOT_REF 1 #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_desc; +struct xfs_mount; +struct xfs_trans; +struct xfs_dquot_acct; + +typedef struct xfs_log_item { + struct list_head 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 */ + struct xfs_ail *li_ailp; /* ptr to AIL */ + 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_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_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 + +/* + * 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; /* free slots bitmask */ + 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 */ + 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 */ + 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; /* acctg info for dquots */ + xfs_trans_callback_t t_callback; /* transaction callback */ + void *t_callarg; /* callback arg */ + unsigned int t_flags; /* misc flags */ + int64_t t_icount_delta; /* superblock icount change */ + int64_t t_ifree_delta; /* superblock ifree change */ + int64_t t_fdblocks_delta; /* superblock fdblocks chg */ + int64_t t_res_fdblocks_delta; /* on-disk only chg */ + int64_t t_frextents_delta;/* superblock freextents chg*/ + int64_t t_res_frextents_delta; /* on-disk only chg */ +#ifdef DEBUG + int64_t t_ag_freeblks_delta; /* debugging counter */ + int64_t t_ag_flist_delta; /* debugging counter */ + int64_t t_ag_btree_delta; /* debugging counter */ +#endif + int64_t t_dblocks_delta;/* superblock dblocks change */ + int64_t t_agcount_delta;/* superblock agcount change */ + int64_t t_imaxpct_delta;/* superblock imaxpct change */ + int64_t t_rextsize_delta;/* superblock rextsize chg */ + int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */ + int64_t t_rblocks_delta;/* superblock rblocks change */ + int64_t t_rextents_delta;/* superblocks rextents chg */ + int64_t 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 */ + unsigned long t_pflags; /* saved process flags state */ +} xfs_trans_t; + /* * XFS transaction mechanism exported interfaces that are * actually macros. @@ -969,9 +911,9 @@ typedef struct xfs_trans { #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) +#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d) +#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d) +#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d) #else #define xfs_trans_agblocks_delta(tp, d) #define xfs_trans_agflist_delta(tp, d) @@ -981,15 +923,12 @@ typedef struct xfs_trans { /* * 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); +void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t); 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 *, @@ -1000,9 +939,9 @@ 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_bhold_release(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 *); @@ -1010,7 +949,6 @@ 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); @@ -1026,17 +964,22 @@ 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 *); +int _xfs_trans_commit(xfs_trans_t *, + uint flags, + int *); +#define xfs_trans_commit(tp, flags) _xfs_trans_commit(tp, flags, NULL) 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 *); +int xfs_trans_ail_init(struct xfs_mount *); +void xfs_trans_ail_destroy(struct xfs_mount *); xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp, xfs_agnumber_t ag, xfs_extlen_t idx); +extern kmem_zone_t *xfs_trans_zone; + #endif /* __KERNEL__ */ +void xfs_trans_init(struct xfs_mount *); +int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *); + #endif /* __XFS_TRANS_H__ */