[Date Prev][Date Next] [Thread Prev][Thread Next]
[Thread Index]
[Date Index]
[Author Index]
Re: [dm-devel] dm: pass up rotational flag
- From: "Martin K. Petersen" <martin petersen oracle com>
- To: Mike Snitzer <snitzer redhat com>
- Cc: jrbarnette chromium org, "Martin K. Petersen" <martin petersen oracle com>, Jens Axboe <jaxboe fusionio com>, Mandeep Singh Baines <msb chromium org>, linux-kernel vger kernel org, dm-devel redhat com, Alasdair G Kergon <agk redhat com>
- Subject: Re: [dm-devel] dm: pass up rotational flag
- Date: Thu, 26 May 2011 14:29:41 -0400
>>>>> "Mike" == Mike Snitzer <snitzer redhat com> writes:
>> Allow the NONROT flag to be passed through to linear mappings if all
>> underlying device are non-rotational. Tools like ureadahead will
>> schedule IOs differently based on the rotational flag.
Mike> Thanks for doing this, looks good in general.
I'd rather we made the rotational property part of the topology instead
of having to special-case it in DM. I seem to recall posting a patch
that did that at some point but I can't seem to find it...
--
Martin K. Petersen Oracle Linux Engineering
[Date Prev][Date Next] [Thread Prev][Thread Next]
[Thread Index]
[Date Index]
[Author Index]