Re: [Ext2-devel] Re: [PATCH] 2.6.11-mm3 patch for ext3 writeback"nobh" option
From: Arjan van de Ven
Date: Tue Mar 15 2005 - 11:34:22 EST
On Tue, 2005-03-15 at 08:09 -0800, Badari Pulavarty wrote:
> On Mon, 2005-03-14 at 18:09, Andrew Morton wrote:
> > Badari Pulavarty <pbadari@xxxxxxxxxx> wrote:
> > >
> > > Here is the 2.6.11-mm3 version of patch for adding "nobh"
> > > support for ext3 writeback mode.
> > Care to update Documentation/filesystems/ext3.txt?
> Yes. I will do that. I am planning to add "nobh" support to
> ext3 ordered mode also, since its the default one. We need
> to modify generic interfaces like mpage_writepage(s) to
> keep track of bio count and make journal code wait for them etc. -
> at that point the "generic" code will no longer be generic.
> I am thinking of a way to do it *less* intrusively.
> At that point, we can make "nobh" default option. (which
> needs less documentation).
I still don't get why you want a mount option. Sure during development
it can be nice.. but do you still want it in the production trees??
(I understand that for small blocksizes you need to fallback code, fine,
no problem, but why do you want to make it an *option* instead of
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