Re: overlayfs patches for ovl_copy_up & ovl_rename

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A Dijous 19 Maig 2011 11:52:46, vàreu escriure:
> Thanks for the info.
welcome,

> So what you see as the end result is the same as the original lower
> file?  Or there's a file on the upper filesystem which contains old data?

it does consecutive changes in upperdir, one of the intermediate changes is 
not done,
like if a process is using a file while a previous process has not yet finished 
to replace it.

> 
> >   in the package upgrade, the file
> > 
> > does not exists, it is created on tmpfs and moved to the final
> > overlayfs directory; after we can check that it does not exist there.
> 
> Does it exist on the upper filesystem?
no, neither.

> "mv" between two filesystems is actually impelemented as copy+remove.

therefore is that my patch is not modifying the right procedure,

Thanks,

Jordi Pujol

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