[PATCH 00/12] mm: add bitmap VMA flag helpers and convert all mmap_prepare to use them

[Andrew Morton]

On Mon, 19 Jan 2026 14:48:51 +0000 Lorenzo Stoakes <lorenzo.stoakes at oracle.com> wrote:

> We introduced the bitmap VMA type vma_flags_t in the aptly named commit
> 9ea35a25d51b ("mm: introduce VMA flags bitmap type") in order to permit
> future growth in VMA flags and to prevent the asinine requirement that VMA
> flags be available to 64-bit kernels only if they happened to use a bit
> number about 32-bits.
> 
> This is a long-term project as there are very many users of VMA flags
> within the kernel that need to be updated in order to utilise this new
> type.

Thanks, let's give this a run in mm-new for a few days, see if that
helps shake anything out.  I didn't add [11/12] due to a significant
merge clash, but it compiles!