Messages in this thread | | | Date | Tue, 29 May 2018 12:48:55 +0200 | From | Gerd Hoffmann <> | Subject | Re: [PATCH v3] Add udmabuf misc device |
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Hi,
> > > qemu test branch: > > > https://git.kraxel.org/cgit/qemu/log/?h=sirius/udmabuf ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > > + if (!shmem_mapping(file_inode(ubuf->filp)->i_mapping)) > > > + goto err_free_ubuf; > > Can/should we test here that the memfd has a locked down size here?
Makes sense. Suggested way to check that? unstatic memfd_get_seals() function (mm/shmem.c)? Or is there some better way?
Also which seals should we require? Is F_SEAL_SHRINK enough?
> On that: Link to userspace patches/git tree using this would be nice.
See above.
cheers, Gerd
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