assert(atomic_read(&mp->nohomeok));
assert(mp->nohomeok);
static void LogSyncRelease(struct metapage * mp){	struct jfs_log *log = mp->log;	assert(atomic_read(&mp->nohomeok));	assert(log);	atomic_dec(&mp->nohomeok);	if (atomic_read(&mp->nohomeok))		return;	hold_metapage(mp, 0);	LOGSYNC_LOCK(log);	mp->log = NULL;	mp->lsn = 0;	mp->clsn = 0;	log->count--;	list_del_init(&mp->synclist);	LOGSYNC_UNLOCK(log);	release_metapage(mp);}