All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kees Cook <kees@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Kees Cook <kees@kernel.org>, Shung-Hsi Yu <shung-hsi.yu@suse.com>,
	Eduard Zingerman <eddyz87@gmail.com>,
	Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
	Uladzislau Rezki <urezki@gmail.com>,
	Erhard Furtner <erhard_f@mailbox.org>,
	Danilo Krummrich <dakr@kernel.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	bpf@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: [PATCH 0/2] mm: vmalloc: Actually use the in-place vrealloc region
Date: Thu, 15 May 2025 14:42:14 -0700	[thread overview]
Message-ID: <20250515214020.work.519-kees@kernel.org> (raw)

Hi,

This fixes a performance regression[1] with vrealloc(). This needs to
get into v6.15, which is where the regression originates, and then it'll
get backport to the -stable releases as well.

Thanks!

-Kees

[1] https://lore.kernel.org/lkml/20250515-bpf-verifier-slowdown-vwo2meju4cgp2su5ckj@6gi6ssxbnfqg/

Kees Cook (2):
  mm: vmalloc: Actually use the in-place vrealloc region
  mm: vmalloc: Only zero-init on vrealloc shrink

 mm/vmalloc.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

-- 
2.34.1


             reply	other threads:[~2025-05-15 21:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-15 21:42 Kees Cook [this message]
2025-05-15 21:42 ` [PATCH 1/2] mm: vmalloc: Actually use the in-place vrealloc region Kees Cook
2025-05-15 21:42 ` [PATCH 2/2] mm: vmalloc: Only zero-init on vrealloc shrink Kees Cook
2025-05-16  6:02 ` [PATCH 0/2] mm: vmalloc: Actually use the in-place vrealloc region Shung-Hsi Yu
2025-05-16  6:32 ` Uladzislau Rezki
2025-05-16  8:28 ` Danilo Krummrich
2025-05-19 19:18 ` Kees Cook
2025-05-20  0:06   ` Andrew Morton
2025-05-20 16:06     ` Kees Cook

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=20250515214020.work.519-kees@kernel.org \
    --to=kees@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=bpf@vger.kernel.org \
    --cc=dakr@kernel.org \
    --cc=eddyz87@gmail.com \
    --cc=erhard_f@mailbox.org \
    --cc=linux-hardening@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=pawan.kumar.gupta@linux.intel.com \
    --cc=shung-hsi.yu@suse.com \
    --cc=urezki@gmail.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.