[PATCH v2 1/4] mm/page_table_check: Pass mm_struct to pxx_user_accessible_page()

Andrew Morton akpm at linux-foundation.org
Fri Mar 13 07:57:57 AEDT 2026


On Thu, 12 Mar 2026 16:02:40 +0100 Vasily Gorbik <gor at linux.ibm.com> wrote:

> On Fri, Mar 06, 2026 at 05:16:30PM +0100, Alexander Gordeev wrote:
> > From: Tobias Huschle <huschle at linux.ibm.com>
> > 
> > Unlike other architectures, s390 does not have means to
> > distinguish kernel vs user page table entries - neither
> > an entry itself, nor the address could be used for that.
> > It is only the mm_struct that indicates whether an entry
> > in question is mapped to a user space. So pass mm_struct
> > to pxx_user_accessible_page() callbacks.
> > 
> > [agordeev at linux.ibm.com: rephrased commit message, removed braces]
> > 
> > Reviewed-by: Gerald Schaefer <gerald.schaefer at linux.ibm.com>
> > Reviewed-by: Andrew Morton <akpm at linux-foundation.org>
> > Signed-off-by: Tobias Huschle <huschle at linux.ibm.com>
> > Signed-off-by: Alexander Gordeev <agordeev at linux.ibm.com>
> > ---
> >  arch/arm64/include/asm/pgtable.h             |  6 +++---
> >  arch/powerpc/include/asm/book3s/32/pgtable.h |  2 +-
> >  arch/powerpc/include/asm/book3s/64/pgtable.h | 10 +++++-----
> >  arch/powerpc/include/asm/nohash/pgtable.h    |  2 +-
> >  arch/powerpc/include/asm/pgtable.h           |  4 ++--
> >  arch/riscv/include/asm/pgtable.h             |  6 +++---
> >  arch/x86/include/asm/pgtable.h               |  6 +++---
> >  mm/page_table_check.c                        | 15 ++++++---------
> >  8 files changed, 24 insertions(+), 27 deletions(-)
> 
> Andrew, may I get your Reviewed-by or Ack-by for v2 so I can take it
> via the s390 tree as well?

	Reviewed-by: Andrew Morton <akpm at linux-foundation.org>

It doesn't look like [1/4] changed significanty since v1?



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