Re: [RFC][PATCH 02/13] ovl: redirect dir by file handle on copy up

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On Wed, Apr 19, 2017 at 6:16 PM, Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> On Mon, Apr 17, 2017 at 1:59 AM, Amir Goldstein <amir73il@xxxxxxxxx> wrote:
>> When mounted with mount option redirect_dir=fh,
>> every copy up of lower directory stores the lower
>> dir file handle in overlay.fh xattr of upper dir.
>
> Is there a disadvantage to doing this unconditionally? (Same goes for patch 4)
>
> Is there a disadvantage to doing this even for the non-samefs case?
>

Not that I can think of. It's just that all the features that stable
inode brings
to the table only work for same_fs right now, but we can store overlay.fh
anyway.

When you get a chance please let me know your preference wrt
configuration options.
I don't see a reason to let the user turn off storing overlay.fh?
Is there a reason to let user turn off lookup by fh? for files?
(i.e. to preserve old weird behavior?)

Amir.
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