Re: [PATCH v4 0/2] mm/process_vm_access: pidfd and nowait support for process_vm_readv/writev

[Andrew Morton]

On Fri, 15 May 2026 16:33:33 +0200 Alban Crequy <alban.crequy@xxxxxxxxx> wrote:

> This adds two flags to process_vm_readv/writev:
> 
> - PROCESS_VM_PIDFD: refer to the remote process via PID file descriptor
>   instead of PID.
> - PROCESS_VM_NOWAIT: do not block on IO if the memory access causes a
>   page fault.

Thanks, I'll await further reviewer input before doing anything with
this.

> v3: https://lore.kernel.org/lkml/20260428122826.339550-1-alban.crequy@xxxxxxxxx/
> v2: https://lore.kernel.org/lkml/20260408145436.843538-1-alban.crequy@xxxxxxxxx/
> v1: https://lore.kernel.org/lkml/20251118132348.2415603-1-alban.crequy@xxxxxxxxx/
> Sashiko review of v3: https://sashiko.dev/#/patchset/20260428122826.339550-1-alban.crequy@xxxxxxxxx
> Sashiko review of v2: https://sashiko.dev/#/patchset/20260408145436.843538-1-alban.crequy@xxxxxxxxx

Sashiko found a bunch of new things to say:
	https://sashiko.dev/#/patchset/20260428122826.339550-1-alban.crequy@xxxxxxxxx