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 4F27A2FC00C for ; Mon, 5 Jan 2026 17:42:18 +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=1767634938; cv=none; b=HLtzBop3x3/eRlWSWfUZ21XDzFgQPqxl4ElwQKA9Jz0tg0g4MRLxpCEAFInt2dWIEFECeWJ67UmVLFnz16VuY3LgzW9eLa6+gWKy+w5hjeL7gJXPO/UM/Uyjow0LuIAbqJ5PvafqYVqEVbwPVQoTVE0eNyhPAuLUBHGKQ1CqQNk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767634938; c=relaxed/simple; bh=MSuIA19HOzhzqaqXHUG3XbdQVfIKvnX8zde7DxytebY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cDiMDp4IIqMj01gjj4F8DQc0RQ18xAr3CoEUR9irWZVsZ93HAH0K8QHeec9JCQYJEo1KCNaUKKQIZqPiYQr8NIXKSCyiaRCZm4fI3hNwWvRp3M3QkHoZf07+1VtFbX1/HwxZKk+H2HDYYrAXTNgIplPSfzBuaP0Pzsq1DXLNZzg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TgMvN5tK; 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="TgMvN5tK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 40C66C116D0; Mon, 5 Jan 2026 17:42:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767634938; bh=MSuIA19HOzhzqaqXHUG3XbdQVfIKvnX8zde7DxytebY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TgMvN5tKnRR6LvPRRB00EFyWLGLkEZnnJbfT5Xz8g/4qJCZSgFOOuzsM4a6SlSZ6d A7YBbNW8Um5Zo3jj/f7IbyUWuFz3ke5y7iysn2GF2OM6KzpL+HqRWbVhUfISt5upB8 CTcQdKa5lfTBhgsaP70lqzLhFuKcAXVVnQgbdeCEiRJ+wsru4cvJr1HK8aAt+xdB6F lUv9uO5jT1ES4vzzQb0WGPFJMWVL5W3iMYk5/emKmWWc1KJrPjLPCyERTyGaeeWQCI YEAn5hMMY1M7rUsthf2sSKn5dHU47Tf8s/TAhCI+ZJq4VAkRsjXGYlpa/77WZxDc3P TdLBe0q84ViDg== From: Sasha Levin To: stable@vger.kernel.org Cc: David Hildenbrand , "Ritesh Harjani (IBM)" , Christophe Leroy , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Andrew Morton , Sasha Levin Subject: [PATCH 6.12.y 3/3] powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages Date: Mon, 5 Jan 2026 12:42:05 -0500 Message-ID: <20260105174205.2697666-3-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260105174205.2697666-1-sashal@kernel.org> References: <2026010546-overcrowd-jarring-93b0@gregkh> <20260105174205.2697666-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: David Hildenbrand [ Upstream commit 0da2ba35c0d532ca0fe7af698b17d74c4d084b9a ] Let's properly adjust BALLOON_MIGRATE like the other drivers. Note that the INFLATE/DEFLATE events are triggered from the core when enqueueing/dequeueing pages. This was found by code inspection. Link: https://lkml.kernel.org/r/20251021100606.148294-3-david@redhat.com Fixes: fe030c9b85e6 ("powerpc/pseries/cmm: Implement balloon compaction") Signed-off-by: David Hildenbrand Reviewed-by: Ritesh Harjani (IBM) Cc: Christophe Leroy Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Signed-off-by: Andrew Morton Signed-off-by: Sasha Levin --- arch/powerpc/platforms/pseries/cmm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index 5e0a718d1be7..8c1f9721756e 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -532,6 +532,7 @@ static int cmm_migratepage(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); balloon_page_insert(b_dev_info, newpage); + __count_vm_event(BALLOON_MIGRATE); b_dev_info->isolated_pages--; spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); -- 2.51.0