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 C02175C96; Wed, 22 Oct 2025 01:03:49 +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=1761095029; cv=none; b=seyxEIs8jxwBxOkSGI1EtrlkDFEwPUbJdAIRszE3821YD8W5PMLAVE9DAw+94fyxhpj3Il15GwE2KLnfmXj5QVZvl1av6HjcVhCNJtmcekRpkoUgSvpWI7WeR/y94yWuV0ONdQeODBXni/X2rJeE3KlaiH/zNojvOcSglrMly1I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761095029; c=relaxed/simple; bh=OpMA0/9oAABJIYywTiyokiqjgPxdO7YtYPB8cGTro78=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tSC6joENYmzIUpDE47rTUvBw1AfGBbkMU193DwQNl9Kds0EJSum2EkFOURVsQzeSFWUfXZ/3UepJ2zQGHf69Y0H7P9/aCVbRbxGrFJvSiYqJAo/T0km3yQPFlHQuCogb4YRRgqUwZaCf5eevlPknAvm4gkSmM/8x9meXSYoZaLU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gSFpifbE; 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="gSFpifbE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7D4EAC4CEF1; Wed, 22 Oct 2025 01:03:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761095029; bh=OpMA0/9oAABJIYywTiyokiqjgPxdO7YtYPB8cGTro78=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gSFpifbEasbVizf5V3L+2KexanyFQzbtMZbuq1jID6FIIOpVK3LUZLcwNkdppbUfX KyLZt5A1mWA8+tMC4qhQG3ccj+DqFq5FDiWKnCfw/BqSffd6Q3GcCpQPrWyppEVZgt fEiVydz2yGP/8nXF0gpqrdCtOVVkhFrickGHoNnFGLswugZP26omm9ZPTIGEqSCKnU ySvF5uR+tyclSU2n9Ndn3J8WAcC5FZDL9cXvuGOydUp5f0CyzNs+gy4hcaiFKHL82/ j/rZ5EpSy1mOkV5UCVIfXHEUdkQuZBtwfFtQmD7o+ctsQWGS327B4vqY7Kd4p3kWba IeN2GAkgTIwdg== From: SeongJae Park To: David Hildenbrand Cc: SeongJae Park , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Broadcom internal kernel review list , linux-doc@vger.kernel.org, virtualization@lists.linux.dev, Andrew Morton , Oscar Salvador , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonathan Corbet , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Arnd Bergmann , Greg Kroah-Hartman , Jerrin Shaji George , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , Zi Yan Subject: Re: [PATCH v1 01/23] vmw_balloon: adjust BALLOON_DEFLATE when deflating while migrating Date: Tue, 21 Oct 2025 18:03:44 -0700 Message-ID: <20251022010345.120425-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251021125929.377194-2-david@redhat.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Tue, 21 Oct 2025 14:59:06 +0200 David Hildenbrand wrote: > When we're effectively deflating the balloon while migrating a page > because inflating the new page failed, we're not adjusting > BALLOON_DEFLATE. > > Let's do that. This is a preparation for factoring out this handling to > the core code, making it work in a similar way first. > > As this (deflating while migrating because of inflation error) is a > corner case that I don't really expect to happen in practice > and the stats are not that crucial, this likely doesn't classify as a fix. > > Signed-off-by: David Hildenbrand Reviewed-by: SeongJae Park Thanks, SJ [...]