> On Jun 16, 2016, at 10:52, Weston Andros Adamson <dros@xxxxxxxxxx> wrote:
>
> Hey Trond, Anna,
>
> The following patches should be CC’d to stable for all stable branches
> with flexfiles.
>
> They fix an issue where the client can use the wrong credential if the
> server returns a read-only and readwrite layout with different creds.
> The client then goes into a LAYOUTRETURN/LAYOUTGET loop that
> it never recovers from.
>
> This has been seen in recent fedora releases.
>
> Here are the relevant patches:
>
> commit 3064b6861d00b7124558cdf79f9387f948361be3
> Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
> Date: Thu Apr 21 20:52:00 2016 -0400
>
> nfs: have flexfiles mirror keep creds for both ro and rw layouts
>
> commit 90a0be00e9d29d9baac27c0c63a5e71ca1334001
> Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
> Date: Thu Apr 21 20:51:59 2016 -0400
>
> nfs: get a reference to the credential in ff_layout_alloc_lseg
>
> commit 57f3f4c0cd50e90aa92eec20d9c309dd67c594a5
> Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
> Date: Thu Apr 21 20:51:58 2016 -0400
>
> nfs: have ff_layout_get_ds_cred take a reference to the cred
>
> commit 547a637630c61b9e1dae9abce2b44ce7076244af
> Author: Jeff Layton <jlayton@xxxxxxxxxxxxxxx>
> Date: Thu Apr 21 20:51:57 2016 -0400
>
> nfs: don't call nfs4_ff_layout_prepare_ds from ff_layout_get_ds_cred
>
>
> -dros
>
Those are already applied upstream afaics, so we can’t add any Ccs. If they need to go to stable, then someone has to submit them directly.
Cheers
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