![]() | |||||||||||||
Messages in this thread |
Tejun Heo wrote:
> @@ -176,6 +176,18 @@ static ide_startstop_t __ide_do_rw_disk(
> lba48 = 0;
> }
>
> + if (blk_fua_rq(rq) &&
> + (!rq_data_dir(rq) || !drive->select.b.lba || !lba48)) {
> + if (!rq_data_dir(rq))
> + printk(KERN_WARNING "%s: FUA READ unsupported\n",
> + drive->name);
> + else
> + printk(KERN_WARNING "%s: FUA request received but "
> + "cannot use LBA48\n", drive->name);
> + ide_end_request(drive, 0, 0);
> + return ide_stopped;
> + }
> +
Does this string of tests really need to be added to the main fast path?
It would be better to simply guarantee that this check need never exist
in the IDE driver, by guaranteeing that the block layer will never send
a FUA-READ command to a driver that does not wish it.
Jeff
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
| ||||||||||||
| Last update: 2005-06-05 06:51 [from the cache] ©2003-2008 | |||||||||||||