From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Vineet Agarwal <agarwal.vineet2006@gmail.com>,
akpm@linux-foundation.org, ljs@kernel.org, shuah@kernel.org
Cc: ziy@nvidia.com, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5] selftests/mm: khugepaged: initialize file contents via mmap
Date: Wed, 29 Apr 2026 15:14:00 +0200 [thread overview]
Message-ID: <69bb12b1-386b-41e4-ac98-9d545818d67d@kernel.org> (raw)
In-Reply-To: <20260429115816.98824-1-agarwal.vineet2006@gmail.com>
On 4/29/26 13:58, Vineet Agarwal wrote:
> file_setup_area() currently allocates anonymous memory, fills it,
> and writes it into the backing file used for collapse testing.
>
> Instead of copying data through write(), resize the file with
> ftruncate(), map it directly with MAP_SHARED, and initialize the
> mapped area in place.
>
> This simplifies the setup path and avoids the need for explicit
> partial write handling.
>
> Signed-off-by: Vineet Agarwal <agarwal.vineet2006@gmail.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Thanks! :)
--
Cheers,
David
prev parent reply other threads:[~2026-04-29 13:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-29 11:58 [PATCH v5] selftests/mm: khugepaged: initialize file contents via mmap Vineet Agarwal
2026-04-29 12:59 ` Zi Yan
2026-04-29 13:14 ` David Hildenbrand (Arm) [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=69bb12b1-386b-41e4-ac98-9d545818d67d@kernel.org \
--to=david@kernel.org \
--cc=agarwal.vineet2006@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ljs@kernel.org \
--cc=shuah@kernel.org \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox