Messages in this thread | | | Subject | Re: [PATCH v2] ovl: provide real_file() and overlayfs get_unmapped_area() | From | Mike Kravetz <> | Date | Wed, 10 Jun 2020 19:31:57 -0700 |
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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
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