Re: [dm-devel] do not disable ext4 discards on first discard failure? [was: Re: dm snapshot: ignore discards issued to the snapshot-origin target]

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On Wed, 4 May 2011, Eric Sandeen wrote:

> On 5/4/11 11:33 AM, Ted Ts'o wrote:
> > On Fri, Apr 29, 2011 at 09:28:51AM -0500, Eric Sandeen wrote:
> >> On 4/29/11 7:29 AM, Christoph Hellwig wrote:
> >>> FYI, that disable discard on failure seems to be an ext4 special and no
> >>> one else picked up that stupid idea.  If ext4 wants to misbehave for
> >>> that just let them..
> >>
> >> It was my "stupid idea," and I'm ok with reverting it ;)
> > 
> > I think I forgot to send the patch out, but it's been reverted in the
> > ext4 master branch, commit id: d9f34504e695.  It's more than a revert,
> > actually, since I also dropped error checking for FITRIM.  Otherwise
> > an attempt to use FITRIM would stop after hitting the first dm region
> > that didn't support discards.
> > 
> > 						- Ted
> 
> The xfs must-be-posted-and-reviewed-before-commit policy would be helpful here, I think.
> 
> If it's understood and agreed upon, people will get more diligent about review, and it'll be easier to remember to send the patch out - because it's policy.

I second that! Also we should do more reviews anyway :)

Thanks!
-Lukas

> 
> Thanks,
> -Eric
> 
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