[CRIU] OverlayFS Patch

[Pavel Emelyanov]

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