linux-kernel - Re: [PATCH v6 0/6] ioctl()-based API to query VMAs from /proc/<pid>/maps

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Date: Thu, 27 Jun 2024 12:59:38 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Andrii Nakryiko <andrii@...nel.org>
Cc: linux-fsdevel@...r.kernel.org, brauner@...nel.org,
 viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
 gregkh@...uxfoundation.org, linux-mm@...ck.org, liam.howlett@...cle.com,
 surenb@...gle.com, rppt@...nel.org, adobriyan@...il.com
Subject: Re: [PATCH v6 0/6] ioctl()-based API to query VMAs from
 /proc/<pid>/maps

On Thu, 27 Jun 2024 10:08:52 -0700 Andrii Nakryiko <andrii@...nel.org> wrote:

> Implement binary ioctl()-based interface to /proc/<pid>/maps file to allow
> applications to query VMA information more efficiently than reading *all* VMAs
> nonselectively through text-based interface of /proc/<pid>/maps file.

I appreciate the usefulness for monitoring large fleets, so I'll add
this version to mm-unstable.  As we're almost at -rc6 I'll await
further review before deciding on the next steps.

Is it possible/sensible to make this feature Kconfigurable so that people who
don't need it can omit it?