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
