diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/jfs/jfs_txnmgr.h')
| -rw-r--r-- | ANDROID_3.4.5/fs/jfs/jfs_txnmgr.h | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/ANDROID_3.4.5/fs/jfs/jfs_txnmgr.h b/ANDROID_3.4.5/fs/jfs/jfs_txnmgr.h deleted file mode 100644 index ab728893..00000000 --- a/ANDROID_3.4.5/fs/jfs/jfs_txnmgr.h +++ /dev/null @@ -1,311 +0,0 @@ -/* - * Copyright (C) International Business Machines Corp., 2000-2004 - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will 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 to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef _H_JFS_TXNMGR -#define _H_JFS_TXNMGR - -#include "jfs_logmgr.h" - -/* - * Hide implementation of TxBlock and TxLock - */ -#define tid_to_tblock(tid) (&TxBlock[tid]) - -#define lid_to_tlock(lid) (&TxLock[lid]) - -/* - * transaction block - */ -struct tblock { - /* - * tblock and jbuf_t common area: struct logsyncblk - * - * the following 5 fields are the same as struct logsyncblk - * which is common to tblock and jbuf to form logsynclist - */ - u16 xflag; /* tx commit type */ - u16 flag; /* tx commit state */ - lid_t dummy; /* Must keep structures common */ - s32 lsn; /* recovery lsn */ - struct list_head synclist; /* logsynclist link */ - - /* lock management */ - struct super_block *sb; /* super block */ - lid_t next; /* index of first tlock of tid */ - lid_t last; /* index of last tlock of tid */ - wait_queue_head_t waitor; /* tids waiting on this tid */ - - /* log management */ - u32 logtid; /* log transaction id */ - - /* commit management */ - struct list_head cqueue; /* commit queue list */ - s32 clsn; /* commit lsn */ - struct lbuf *bp; - s32 pn; /* commit record log page number */ - s32 eor; /* commit record eor */ - wait_queue_head_t gcwait; /* group commit event list: - * ready transactions wait on this - * event for group commit completion. - */ - union { - struct inode *ip; /* inode being deleted */ - pxd_t ixpxd; /* pxd of inode extent for created inode */ - } u; - u32 ino; /* inode number being created */ -}; - -extern struct tblock *TxBlock; /* transaction block table */ - -/* commit flags: tblk->xflag */ -#define COMMIT_SYNC 0x0001 /* synchronous commit */ -#define COMMIT_FORCE 0x0002 /* force pageout at end of commit */ -#define COMMIT_FLUSH 0x0004 /* init flush at end of commit */ -#define COMMIT_MAP 0x00f0 -#define COMMIT_PMAP 0x0010 /* update pmap */ -#define COMMIT_WMAP 0x0020 /* update wmap */ -#define COMMIT_PWMAP 0x0040 /* update pwmap */ -#define COMMIT_FREE 0x0f00 -#define COMMIT_DELETE 0x0100 /* inode delete */ -#define COMMIT_TRUNCATE 0x0200 /* file truncation */ -#define COMMIT_CREATE 0x0400 /* inode create */ -#define COMMIT_LAZY 0x0800 /* lazy commit */ -#define COMMIT_PAGE 0x1000 /* Identifies element as metapage */ -#define COMMIT_INODE 0x2000 /* Identifies element as inode */ - -/* group commit flags tblk->flag: see jfs_logmgr.h */ - -/* - * transaction lock - */ -struct tlock { - lid_t next; /* 2: index next lockword on tid locklist - * next lockword on freelist - */ - tid_t tid; /* 2: transaction id holding lock */ - - u16 flag; /* 2: lock control */ - u16 type; /* 2: log type */ - - struct metapage *mp; /* 4/8: object page buffer locked */ - struct inode *ip; /* 4/8: object */ - /* (16) */ - - s16 lock[24]; /* 48: overlay area */ -}; /* (64) */ - -extern struct tlock *TxLock; /* transaction lock table */ - -/* - * tlock flag - */ -/* txLock state */ -#define tlckPAGELOCK 0x8000 -#define tlckINODELOCK 0x4000 -#define tlckLINELOCK 0x2000 -#define tlckINLINELOCK 0x1000 -/* lmLog state */ -#define tlckLOG 0x0800 -/* updateMap state */ -#define tlckUPDATEMAP 0x0080 -#define tlckDIRECTORY 0x0040 -/* freeLock state */ -#define tlckFREELOCK 0x0008 -#define tlckWRITEPAGE 0x0004 -#define tlckFREEPAGE 0x0002 - -/* - * tlock type - */ -#define tlckTYPE 0xfe00 -#define tlckINODE 0x8000 -#define tlckXTREE 0x4000 -#define tlckDTREE 0x2000 -#define tlckMAP 0x1000 -#define tlckEA 0x0800 -#define tlckACL 0x0400 -#define tlckDATA 0x0200 -#define tlckBTROOT 0x0100 - -#define tlckOPERATION 0x00ff -#define tlckGROW 0x0001 /* file grow */ -#define tlckREMOVE 0x0002 /* file delete */ -#define tlckTRUNCATE 0x0004 /* file truncate */ -#define tlckRELOCATE 0x0008 /* file/directory relocate */ -#define tlckENTRY 0x0001 /* directory insert/delete */ -#define tlckEXTEND 0x0002 /* directory extend in-line */ -#define tlckSPLIT 0x0010 /* splited page */ -#define tlckNEW 0x0020 /* new page from split */ -#define tlckFREE 0x0040 /* free page */ -#define tlckRELINK 0x0080 /* update sibling pointer */ - -/* - * linelock for lmLog() - * - * note: linelock and its variations are overlaid - * at tlock.lock: watch for alignment; - */ -struct lv { - u8 offset; /* 1: */ - u8 length; /* 1: */ -}; /* (2) */ - -#define TLOCKSHORT 20 -#define TLOCKLONG 28 - -struct linelock { - lid_t next; /* 2: next linelock */ - - s8 maxcnt; /* 1: */ - s8 index; /* 1: */ - - u16 flag; /* 2: */ - u8 type; /* 1: */ - u8 l2linesize; /* 1: log2 of linesize */ - /* (8) */ - - struct lv lv[20]; /* 40: */ -}; /* (48) */ - -#define dt_lock linelock - -struct xtlock { - lid_t next; /* 2: */ - - s8 maxcnt; /* 1: */ - s8 index; /* 1: */ - - u16 flag; /* 2: */ - u8 type; /* 1: */ - u8 l2linesize; /* 1: log2 of linesize */ - /* (8) */ - - struct lv header; /* 2: */ - struct lv lwm; /* 2: low water mark */ - struct lv hwm; /* 2: high water mark */ - struct lv twm; /* 2: */ - /* (16) */ - - s32 pxdlock[8]; /* 32: */ -}; /* (48) */ - - -/* - * maplock for txUpdateMap() - * - * note: maplock and its variations are overlaid - * at tlock.lock/linelock: watch for alignment; - * N.B. next field may be set by linelock, and should not - * be modified by maplock; - * N.B. index of the first pxdlock specifies index of next - * free maplock (i.e., number of maplock) in the tlock; - */ -struct maplock { - lid_t next; /* 2: */ - - u8 maxcnt; /* 2: */ - u8 index; /* 2: next free maplock index */ - - u16 flag; /* 2: */ - u8 type; /* 1: */ - u8 count; /* 1: number of pxd/xad */ - /* (8) */ - - pxd_t pxd; /* 8: */ -}; /* (16): */ - -/* maplock flag */ -#define mlckALLOC 0x00f0 -#define mlckALLOCXADLIST 0x0080 -#define mlckALLOCPXDLIST 0x0040 -#define mlckALLOCXAD 0x0020 -#define mlckALLOCPXD 0x0010 -#define mlckFREE 0x000f -#define mlckFREEXADLIST 0x0008 -#define mlckFREEPXDLIST 0x0004 -#define mlckFREEXAD 0x0002 -#define mlckFREEPXD 0x0001 - -#define pxd_lock maplock - -struct xdlistlock { - lid_t next; /* 2: */ - - u8 maxcnt; /* 2: */ - u8 index; /* 2: */ - - u16 flag; /* 2: */ - u8 type; /* 1: */ - u8 count; /* 1: number of pxd/xad */ - /* (8) */ - - /* - * We need xdlist to be 64 bits (8 bytes), regardless of - * whether void * is 32 or 64 bits - */ - union { - void *_xdlist; /* pxd/xad list */ - s64 pad; /* 8: Force 64-bit xdlist size */ - } union64; -}; /* (16): */ - -#define xdlist union64._xdlist - -/* - * commit - * - * parameter to the commit manager routines - */ -struct commit { - tid_t tid; /* tid = index of tblock */ - int flag; /* flags */ - struct jfs_log *log; /* log */ - struct super_block *sb; /* superblock */ - - int nip; /* number of entries in iplist */ - struct inode **iplist; /* list of pointers to inodes */ - - /* log record descriptor on 64-bit boundary */ - struct lrd lrd; /* : log record descriptor */ -}; - -/* - * external declarations - */ -extern int jfs_tlocks_low; - -extern int txInit(void); -extern void txExit(void); -extern struct tlock *txLock(tid_t, struct inode *, struct metapage *, int); -extern struct tlock *txMaplock(tid_t, struct inode *, int); -extern int txCommit(tid_t, int, struct inode **, int); -extern tid_t txBegin(struct super_block *, int); -extern void txBeginAnon(struct super_block *); -extern void txEnd(tid_t); -extern void txAbort(tid_t, int); -extern struct linelock *txLinelock(struct linelock *); -extern void txFreeMap(struct inode *, struct maplock *, struct tblock *, int); -extern void txEA(tid_t, struct inode *, dxd_t *, dxd_t *); -extern void txFreelock(struct inode *); -extern int lmLog(struct jfs_log *, struct tblock *, struct lrd *, - struct tlock *); -extern void txQuiesce(struct super_block *); -extern void txResume(struct super_block *); -extern void txLazyUnlock(struct tblock *); -extern int jfs_lazycommit(void *); -extern int jfs_sync(void *); -#endif /* _H_JFS_TXNMGR */ |