On Wed, Nov 29, 2017 at 07:35:21AM +0200, Amir Goldstein wrote:
> This fixes a regression with readdir of impure dir in overlayfs
> that is shared to VM via 9p fs.
>
> Reported-by: Miguel Bernal Marin <miguel.bernal.marin@xxxxxxxxxxxxxxx>
> Fixes: 4edb83bb1041 ("ovl: constant d_ino for non-merge dirs")
> Cc: <stable@xxxxxxxxxxxxxxx> #4.14
> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
> ---
> fs/overlayfs/readdir.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
> index 502dc0966f91..b98f1efe50c1 100644
> --- a/fs/overlayfs/readdir.c
> +++ b/fs/overlayfs/readdir.c
> @@ -663,7 +663,10 @@ static int ovl_iterate_real(struct file *file, struct dir_context *ctx)
> return PTR_ERR(rdt.cache);
> }
>
> - return iterate_dir(od->realfile, &rdt.ctx);
> + err = iterate_dir(od->realfile, &rdt.ctx);
> + ctx->pos = rdt.ctx.pos;
> +
> + return err;
> }
This fix the issue with 9P and Overlay
Tested-by: Miguel Bernal Marin <miguel.bernal.marin@xxxxxxxxxxxxxxx>
--
Thanks,
Miguel Bernal Marin Open Source Technology Center
https://clearlinux.org Intel Corporation
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