Re: [PATCH resend] bsg: Add support for submitting requests at tail of queue

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On Tue, 24 Mar 2009 10:41:32 +0200
Boaz Harrosh <bharrosh@xxxxxxxxxxx> wrote:

> Boaz Harrosh wrote:
> > Hi Tomo Jens
> > 
> > Tomo you never ack-by on this patch. I absolutely needs this for the
> > user-mode API of osd-initiator. Which is needed with up-coming exofs
> > utilities.
> > 
> > What do you want to do?
> > 
> > Thanks 
> > 
> 
> Hi Jens.
> 
> I absolutely need this patch for 2.6.30 merge window. It is totally
> un-dangerous since defaults are left unchanged.

The question is we really need this feature or not. Though I guess
that we need to address this starvation issue.


> I need it because the user-mode utilities for osd and exofs that
> correspond to code in 2.6.30 will need this patch to compile,
> because they use a flag constant defined in this patch.

What do the user-mode utilities does for what?

You always say something like, "we need this for OSD, pNFS or
something". But I'm not sure you explain the detailed background.

A typical example is, why does the osd library export lots of
functions that exofs doesn't use with EXPORT_SYMBOL instead of
EXPORT_SYMBOL_GPL?
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