Re: [dm-devel] [PATCH 1/3] block: Add blk_queue_copy_limits()

From: Martin K. Petersen
Date: Sun Sep 20 2009 - 17:03:49 EST


>>>>> "Jun'ichi" == Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx> writes:

Jun'ichi> Umm, with this, BLK_DEF_MAX_SECTORS becomes upper bound of
Jun'ichi> max_hw_sectors and the values of underlying devices are not
Jun'ichi> propagated to the stacking devices.

Well, max_sectors is already bounded by this. max_hw_sectors only
really matters for PC commands, so I'm not sure it's a big deal for
DM. But I guess we could set the default max_hw_sectors to -1.

I'm just trying to avoid these scattered if-0-set-it-to-something-else
cases. I'd much rather have the defaults do the right thing.

--
Martin K. Petersen Oracle Linux Engineering
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/