[CRIU] OverlayFS Patch

[Gabriel Guimaraes]

Hi Pavel,

Filipe said I should create an open pull request, which is simpler:

https://github.com/xemul/criu/pull/15

If you still want me to break down the patch and send you via email I can
also do that.

Best,
Gabriel

On Tue, Aug 4, 2015 at 10:17 AM, Pavel Emelyanov <xemul at parallels.com>
wrote:

> On 08/03/2015 11:27 PM, Gabriel Guimaraes wrote:
> > Hi Pavel,
> >
> > I believe Saied has already talked to you about this patch. It enables
> the --overlayfs flag in CRIU which
> > compensates for the OverlayFS bug in the Linux Kernel before version 4.2
> (more about the bug at
> > http://criu.org/Docker). More detailed information can be found in the
> patch itself.
>
> Great :) But I see 3 patches inside. Would you split the e-mails too?
>
> > We did not implement a very sophisticated error checking mechanism, so
> an error such as "buffer too small"
> > within __lookup_overlayfs will be printed but won't necessarily make
> CRIU abort. If you'd like, we can
> > change that, but in my opinion this would make the code a lot more
> complicated with few gains, since it's
> > already easy to debug what error happened as is.
>
> Sure, let's keep this simple all the more so this is a workaround that
> will go away soon.
>
> -- Pavel
>
>
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