jfs_txnmgr.h | Explore in Territory

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *   Copyright (C) International Business Machines Corp., 2000-2004
 */
#ifndef _H_JFS_TXNMGR
#define _H_JFS_TXNMGR

#include "jfs_logmgr.h"

/*
 * Hide implementation of TxBlock and TxLock
 */
#define tid_to_tblock(tid) …

#define lid_to_tlock(lid) …

/*
 *	transaction block
 */
struct tblock { … };

extern struct tblock *TxBlock;	/* transaction block table */

/* commit flags: tblk->xflag */
#define COMMIT_SYNC …
#define COMMIT_FORCE …
#define COMMIT_FLUSH …
#define COMMIT_MAP …
#define COMMIT_PMAP …
#define COMMIT_WMAP …
#define COMMIT_PWMAP …
#define COMMIT_FREE …
#define COMMIT_DELETE …
#define COMMIT_TRUNCATE …
#define COMMIT_CREATE …
#define COMMIT_LAZY …
#define COMMIT_PAGE …
#define COMMIT_INODE …

/* group commit flags tblk->flag: see jfs_logmgr.h */

/*
 *	transaction lock
 */
struct tlock { … };				/* (64) */

extern struct tlock *TxLock;	/* transaction lock table */

/*
 * tlock flag
 */
/* txLock state */
#define tlckPAGELOCK …
#define tlckINODELOCK …
#define tlckLINELOCK …
#define tlckINLINELOCK …
/* lmLog state */
#define tlckLOG …
/* updateMap state */
#define tlckUPDATEMAP …
#define tlckDIRECTORY …
/* freeLock state */
#define tlckFREELOCK …
#define tlckWRITEPAGE …
#define tlckFREEPAGE …

/*
 * tlock type
 */
#define tlckTYPE …
#define tlckINODE …
#define tlckXTREE …
#define tlckDTREE …
#define tlckMAP …
#define tlckEA …
#define tlckACL …
#define tlckDATA …
#define tlckBTROOT …

#define tlckOPERATION …
#define tlckGROW …
#define tlckREMOVE …
#define tlckTRUNCATE …
#define tlckRELOCATE …
#define tlckENTRY …
#define tlckEXTEND …
#define tlckSPLIT …
#define tlckNEW …
#define tlckFREE …
#define tlckRELINK …

/*
 *	linelock for lmLog()
 *
 * note: linelock and its variations are overlaid
 * at tlock.lock: watch for alignment;
 */
struct lv { … };				/* (2) */

#define TLOCKSHORT …
#define TLOCKLONG …

struct linelock { … };				/* (48) */

#define dt_lock …

struct xtlock { … };				/* (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 { … };				/* (16): */

/* maplock flag */
#define mlckALLOC …
#define mlckALLOCXADLIST …
#define mlckALLOCPXDLIST …
#define mlckALLOCXAD …
#define mlckALLOCPXD …
#define mlckFREE …
#define mlckFREEXADLIST …
#define mlckFREEPXDLIST …
#define mlckFREEXAD …
#define mlckFREEPXD …

#define pxd_lock …

struct xdlistlock { … };				/* (16): */

#define xdlist …

/*
 *	commit
 *
 * parameter to the commit manager routines
 */
struct commit { … };

/*
 * 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 */
linux/fs/jfs/jfs_txnmgr.h
