/* Copyright (C) 2001-2005 by Hans Reiser, licensing governed by reiser4progs/COPYING. backup.h -- reiser4 backup method declaration. */ #ifndef REISER4_BACKUP_H #define REISER4_BACKUP_H #ifndef ENABLE_MINIMAL /* Put backup copies into the power of (3/2) block numbers. */ #define BACKUP_EXP_LAYOUT(blk) ((blk * 3) >> 1) extern reiser4_backup_t *reiser4_backup_create(reiser4_fs_t *fs); extern reiser4_backup_t *reiser4_backup_open(reiser4_fs_t *fs); extern void reiser4_backup_close(reiser4_backup_t *backup); extern errno_t reiser4_backup_sync(reiser4_backup_t *backup); extern errno_t reiser4_backup_valid(reiser4_backup_t *backup); extern errno_t reiser4_backup_layout(reiser4_fs_t *fs, region_func_t region_func, void *data); extern errno_t reiser4_old_backup_layout(reiser4_fs_t *fs, region_func_t region_func, void *data); #define reiser4_backup_isdirty(backup) ((backup)->dirty) #define reiser4_backup_mkdirty(backup) ((backup)->dirty = 1) #define reiser4_backup_mkclean(backup) ((backup)->dirty = 0) #endif #endif