[PATCH RESEND 08/12] mm: update all remaining mmap_prepare users to use vma_flags_t

[Lorenzo Stoakes]

On Tue, Jan 20, 2026 at 09:01:04AM +0000, Lorenzo Stoakes wrote:
> On Mon, Jan 19, 2026 at 09:59:51PM -0500, Zi Yan wrote:
> > On 19 Jan 2026, at 16:19, Lorenzo Stoakes wrote:
> >
> > > We will be shortly removing the vm_flags_t field from vm_area_desc so we
> > > need to update all mmap_prepare users to only use the dessc->vma_flags
> > > field.
> > >
> > > This patch achieves that and makes all ancillary changes required to make
> > > this possible.
> > >
> > > This lays the groundwork for future work to eliminate the use of vm_flags_t
> > > in vm_area_desc altogether and more broadly throughout the kernel.
> > >
> > > While we're here, we take the opportunity to replace VM_REMAP_FLAGS with
> > > VMA_REMAP_FLAGS, the vma_flags_t equivalent.
> > >
> > > No functional changes intended.
> > >
> > > Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes at oracle.com>
> > > ---
> > >  drivers/char/mem.c       |  6 +++---
> > >  drivers/dax/device.c     | 10 +++++-----
> > >  fs/aio.c                 |  2 +-
> > >  fs/erofs/data.c          |  5 +++--
> > >  fs/ext4/file.c           |  4 ++--
> > >  fs/ntfs3/file.c          |  2 +-
> > >  fs/orangefs/file.c       |  4 ++--
> > >  fs/ramfs/file-nommu.c    |  2 +-
> > >  fs/resctrl/pseudo_lock.c |  2 +-
> > >  fs/romfs/mmap-nommu.c    |  2 +-
> > >  fs/xfs/xfs_file.c        |  4 ++--
> > >  fs/zonefs/file.c         |  3 ++-
> > >  include/linux/dax.h      |  4 ++--
> > >  include/linux/mm.h       | 24 +++++++++++++++++++-----
> > >  kernel/relay.c           |  2 +-
> > >  mm/memory.c              | 17 ++++++++---------
> > >  16 files changed, 54 insertions(+), 39 deletions(-)
> > >
> >
> > You missed one instance in !CONFIG_DAX:
>
> Yup of course I did... :/ the amount of testing I did here and yet there's
> always some straggler that even allmodconfig somehow doesn't expose.
>
> Let me gather up the cases first and I'll fix-patch.

BTW this is turning into a respin I'll send shortly :) as addressing other
feeedback and removing sparse makes fix-patches not viable unfortunately!

Cheers, Lorenzo