Re: [PATCH v2 05/13] mm: prefer mm->def_vma_flags in mm logic

From: Vlastimil Babka (SUSE)

Date: Wed Jul 22 2026 - 10:38:55 EST


On 7/11/26 20:45, Lorenzo Stoakes wrote:
> Currently mm->def_flags (of type vm_flags_t) is union'd with
> mm->def_vma_flags (of type vma_flags_t).
>
> As part of the effort to convert vm_flags_t usage to vma_flags_t (in order
> to no longer be arbitrarily limited to a system word size for VMA flags),
> prefer mm->def_vma_flags to mm->def_flags throughout the mm logic.
>
> We update dump_mm() to use the %*pb format which means we make no
> assumption about the number of VMA flag bits on output when outputting
> default VMA flags.
>
> No functional change intended.
>
> Reviewed-by: Lance Yang <lance.yang@xxxxxxxxx>
> Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
> Signed-off-by: Lorenzo Stoakes <ljs@xxxxxxxxxx>
> ---
> mm/debug.c | 5 +++--
> mm/mlock.c | 13 +++++++------
> mm/mmap.c | 11 ++++++-----
> mm/vma.c | 2 +-
> 4 files changed, 17 insertions(+), 14 deletions(-)

Reviewed-by: Vlastimil Babka (SUSE) <vbabka@xxxxxxxxxx>