int apaJournalWrite(apa_cache_t *clink)
{
clink->header->checksum=journalCheckSum(clink->header);
if(ata_device_sector_io(clink->device, clink->header,
(journalBuf.num << 1)+APA_SECTOR_APAL_HEADERS, 2, ATA_DIR_WRITE))
return -EIO;
journalBuf.sectors[journalBuf.num]=clink->sector;
journalBuf.num++;
return 0;
}
int journalWrite(apa_cache *clink)
{
clink->header->checksum=journalCheckSum(clink->header);
if(atadDmaTransfer(clink->device, clink->header,
(journalBuf.num << 1)+APA_SECTOR_APAL_HEADERS, 2, ATAD_MODE_WRITE))
return -EIO;
journalBuf.sectors[journalBuf.num]=clink->sector;
journalBuf.num++;
return 0;
}
int journalFlush(pfs_mount_t *pfsMount)
{// this write any thing that in are journal buffer :)
int rv;
pfsMount->blockDev->flushCache(pfsMount->fd);
journalBuf.checksum=journalCheckSum(&journalBuf);
rv=pfsMount->blockDev->transfer(pfsMount->fd, &journalBuf, 0,
(pfsMount->log.number << pfsMount->sector_scale), 2, IOCTL2_TMODE_WRITE);
pfsMount->blockDev->flushCache(pfsMount->fd);
return rv;
}
int journalResetore(pfs_mount_t *pfsMount)
{
int rv;
int result;
pfs_cache_t *clink;
u32 i;
// Read journal buffer from disk
rv = pfsMount->blockDev->transfer(pfsMount->fd, &journalBuf, 0,
(pfsMount->log.number << pfsMount->sector_scale), 2, IOCTL2_TMODE_READ);
if(rv || (journalBuf.magic != PFS_JOUNRNAL_MAGIC) ||
(journalBuf.checksum != (u16)journalCheckSum(&journalBuf)))
{
printf("ps2fs: Error: cannot read log/invalid log\n");
return journalReset(pfsMount);
}
if(journalBuf.num == 0)
{
dprintf("ps2fs: System cleanly un-mounted, no journal restore needed\n");
return journalReset(pfsMount);
}
clink = cacheAllocClean(&result);
if(!clink)
return result;
for(i = 0; i < journalBuf.num; i++)
{
printf("ps2fs: Log overwrite %d:%08lx\n", journalBuf.log[i].sub, journalBuf.log[i].sector);
// Read data in from log section on disk into cache buffer
rv = pfsMount->blockDev->transfer(pfsMount->fd, clink->u.data, 0,
(pfsMount->log.number << pfsMount->sector_scale) + journalBuf.log[i].logSector, 2,
IOCTL2_TMODE_READ);
// Write from cache buffer into destination location on disk
if(!rv)
pfsMount->blockDev->transfer(pfsMount->fd, clink->u.data, journalBuf.log[i].sub,
journalBuf.log[i].sector, 2, IOCTL2_TMODE_WRITE);
}
cacheAdd(clink);
return journalReset(pfsMount);
}
