From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 777E12AE8D; Fri, 16 May 2025 08:28:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747384127; cv=none; b=F0Af+3okrey2OnKcI2joGyFDSEmKBf6bf/OuYVxbEuJnd1g+j/thyRlsuglyJ3kDxKeWvbCqNr4PUL874s7LSjoG8zbrOFHboBqMTtRHU3LWZSjbntb4cwB7gMzfCU7NSqOwmikGX44yXhBnjp12L6sD2C6C47TKpXfogXxEei8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747384127; c=relaxed/simple; bh=YScwtIGquvvK5uBmUhitVD00LyH92SDWUWsk5swDC4w=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tRnE+yVU2+wqKD9Msvle7zX1JymnvZ1C7nG6PnXZ5HKjAi+cNlV0Hvb8u9gZFpvg1Lmnou3mXnWGTh6d/jcltMuNSv+53FHHwpSc7XDJ7UdZnpEAGkAs4VODFtwE7VE99Fbu6T6zdKYqy2DJQfS5mBXRTgsyXNFjy8Ky1ck9QwY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=av0rKnCA; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="av0rKnCA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94D61C4CEE4; Fri, 16 May 2025 08:28:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747384126; bh=YScwtIGquvvK5uBmUhitVD00LyH92SDWUWsk5swDC4w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=av0rKnCAfoh9IWDyyUGpquUt99bYJqIsvKp3IcSy5SSgc9BmTXqumw9zj9wOajt3J 9DddRwouC7FG4GXXvohR0zc69Yt6zT+hegtgTrwiOCfz9TNcONwTFF3ur9AD0phAti 1A1ELq+Es+ypNdrpGi4JvMBja8Ms3VAFb2Ub2GitWhfL0wa0KluO3zmrW3Z9wHO2Vo C86yy7AwlJfThTdsHFhahtZ1CvimiQWL6ATdIiK62VT0htJ8iutVYtGENhk1l0dzWv BamaW8Z4uyQ1pBGFuLuDkJ3Yjrsqn+ZZ/Aaez16A8xzfxNudrRydcaDbbMWB8RZj+r 6gOgRyxBpM2FA== Date: Fri, 16 May 2025 10:28:41 +0200 From: Danilo Krummrich To: Kees Cook Cc: Andrew Morton , Shung-Hsi Yu , Eduard Zingerman , Pawan Gupta , Uladzislau Rezki , Erhard Furtner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, bpf@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH 0/2] mm: vmalloc: Actually use the in-place vrealloc region Message-ID: References: <20250515214020.work.519-kees@kernel.org> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250515214020.work.519-kees@kernel.org> On Thu, May 15, 2025 at 02:42:14PM -0700, Kees Cook wrote: > 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. Reviewed-by: Danilo Krummrich