2:31 a.m.
On 6/10/20 7:17 PM, Al Viro wrote:
On Wed, Jun 10, 2020 at 06:36:16PM -0700, Matthew Wilcox wrote:
> while (file->f_mode & FMODE_OVL_UPPER)
> file = file->private_data;
> return file;
>
> Or are you proposing that overlayfs copy FMODE_HUGEPAGES from the
> underlying fs to the overlaying fs?
The latter - that way nobody outside of overlayfs needs to know what
its ->private_data points to, for one thing. And it's cheaper that
way, obviously.
Thanks Al and Matthew!
I knew adding a file op for this was overkill and was looking for other
suggestions.
--
Mike Kravetz