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 C69B9303CB0 for ; Mon, 5 Jan 2026 18:19:03 +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=1767637143; cv=none; b=i30EAsRPxoH4hqYtlGRM95/BHoiwwI7qs/XShbb8SDcBMY2ntuYB0H8QkMGoi8gQS2YWhagx/1i6t9zzRAa8O07KRO1o8h9abK+jnM1md93w7+nD8r4EBo0eW0ypmKYn7K/TfJ+/HSlum+oWEn8q1xMpudMxMPrUG/LtFNHVTB8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767637143; c=relaxed/simple; bh=MSuIA19HOzhzqaqXHUG3XbdQVfIKvnX8zde7DxytebY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z7db8D28I51IWAozfAH4oRQtynzfXdtaGWPqqX2EpaRoyu2YElgUuttQQPK9+U9sCxwHoOScm92p74bjjodPXb5trJutyL/2KK4yic1nx9uFsVb+00tNQfumNVJdXMfqF/B9ojFVOA/J7Iqo2GsW/HCWK/No8+ZOFx9uDYUM6BA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mvaA+LOB; 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="mvaA+LOB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83FF9C116D0; Mon, 5 Jan 2026 18:19:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767637143; bh=MSuIA19HOzhzqaqXHUG3XbdQVfIKvnX8zde7DxytebY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mvaA+LOBHbt9kYcPfvLzIAUQhYEbeJJhK/tE6syYeJyxytfNpi/3EgJ4DIQw9HMI3 u3Ezp442ixNafrlpX/OuHM5lPhVVqJhThKvVXUj2UGnVzhcPZf5aulu8echeNJFqn1 fXx9zsRnX6dj2nRqLLbZLTCEES0dUlwdLmZwZFJsKOHi9J9D+lgiPVlyrF4RLEzv4q Bs3d5iFimUZr+at+VtWMAlPb33lfkEue4XFkIjkYg0tYw5f+tEfVW6IkigrtEbTaYo HVxjRAus0UQNBWGPlq30YBqw37xKOmsRlFp3txSkhGcwYHgixA9qbo30GA9Xw7YmiS glxFpExu1NsUQ== 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 6.1.y 3/3] powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages Date: Mon, 5 Jan 2026 13:18:49 -0500 Message-ID: <20260105181849.2717306-3-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260105181849.2717306-1-sashal@kernel.org> References: <2026010547-partly-speller-54fa@gregkh> <20260105181849.2717306-1-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