linux-kernel - Re: [PATCH v2 0/9] ioctl()-based API to query VMAs from /proc/<pid>/maps

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Message-Id: <20240524103212.382d10aed85f2e843e86febb@linux-foundation.org>
Date: Fri, 24 May 2024 10:32:12 -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
Subject: Re: [PATCH v2 0/9] ioctl()-based API to query VMAs from
 /proc/<pid>/maps

On Thu, 23 May 2024 21:10:22 -0700 Andrii Nakryiko <andrii@...nel.org> wrote:

> Implement binary ioctl()-based interface to /proc/<pid>/maps file

Why an ioctl rather than a read() of (say) a sysfs file?