--- drivers/ata/libata-sff.c

+++ drivers/ata/libata-sff.c

@@ -893,7 +893,7 @@ static void ata_pio_sector(struct ata_qu

do_write);

}

- if (!do_write)

+ if (!do_write && !PageSlab(page))

flush_dcache_page(page);

qc->curbytes += qc->sect_size;