On Wed, Feb 27, 2019 at 7:32 AM Amir Goldstein <amir73il@xxxxxxxxx> wrote:
>
> Overlay file f_pos is the master copy that is preserved
> through copy up and modified on read/write, but only real
> fs knows how to SEEK_HOLE/SEEK_DATA and real fs may impose
> limitations that are more strict than ->s_maxbytes for specific
> files, so we use the real file to perform seeks.
>
> We do not call real fs for SEEK_CUR:0 query and for SEEK_SET:0
> requests.
>
> Fixes: d1d04ef8572b ("ovl: stack file ops")
> Reported-by: Eddie Horng <eddiehorng.tw@xxxxxxxxx>
> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
Thanks, applied.
Miklos
