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Re: [dm-devel] convert dm-thin to use dm-bufio



On Fri, Aug 19 2011 at  9:31am -0400,
Mikulas Patocka <mpatocka redhat com> wrote:

> On Fri, 19 Aug 2011, Mike Snitzer wrote:
> 
> > On Thu, Aug 18 2011 at  6:31pm -0400,
> > Mikulas Patocka <mpatocka redhat com> wrote:
> > 
> > > > This all sounds good; get the locking interface in and I'll switch to
> > > > bufio straight away.
> > > > 
> > > > - Joe
> > > 
> > > I uploaded bufio-based block manager at 
> > > http://people.redhat.com/mpatocka/patches/kernel/dm-thinp-bufio/. It 
> > > supports locks, but it defines new functions down_write_non_owner and 
> > > up_write_non_owner.
> > 
> > dm-bufio.patch:
> > drivers/md/Kconfig needs a more comprehensive description for DM_BUFIO's
> > help.
> 
> There is intentionally no description. If there is no description, this 
> option won't appear in "make menuconfig" menu.
> 
> dm-bufio is selected automatically when some module that needs it is 
> configured. There is no need to select dm-bufio manually.

Hmm, I wonder if it makes sense to remove DM_PERSISTENT_DATA's help
description?

(we already select DM_PERSISTENT_DATA when DM_THIN_PROVISIONING is
selected -- but it is visible in menuconfig because it has a
description).


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