Re: Compiling for FreeBSD, Bluestore requires AIO

[Willem Jan Withagen <wjw@digiware.nl>]

On 15-1-2016 18:30, Sage Weil wrote:
> On Fri, 15 Jan 2016, Willem Jan Withagen wrote:
>> On 30-11-2015 14:21, Sage Weil wrote:
>>> The problem with all of the porting code in general is that it is doomed
>>> to break later on if we don't have (at least) ongoing build tests.  In
>>> order for a FreeBSD or OSX port to continue working we need VMs that run
>>> either gitbuilder or a jenkins job or similar so that we can tell when it
>>> breaks.
>>>
>>> If someone is willing to run a VM somewhere to do this we can pretty
>>> easily stick it on the gitbuilder page at
>>>
>>> 	http://ceph.com/gitbuilder.cgi
>>
>> Well this is real nice case of such an incident.
>>
>> I'm verifying my changes to the C/C++ code, after having forwarded to HEAD.
>> And now I get bluestore complaining that it requires AIO.
>> Something I've thusfar excluded in the build.
>>
>> Does Bluestore really require AIO??
>> FreeBSD does have AIO, but to take simple steps one at the time, I excluded it
>> with configure. Mainly because it bombs at compile time. Probably due to
>> different include files, or function nameing.....
>>
>> So, in order of preference:
>> - Can I disable AIO for Bluestore
>> - Can I disable bluestore being build?
> 
> AIO is currently required.  The good news is it is confined (mostly) to 
> os/bluestore/BlockDevice.h, so providing an alternative (or non-aio) 
> implementaiton shouldnt' be difficult.. in fact it is mostly there.

Hi Sage,

ATM I've excluded the building of Bluestore, not really knowing how hard
that is going to bite me in run the tests.
But I guess we're going to find out the hard way. 8D

--WjW