From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f45.google.com (mail-pj1-f45.google.com [209.85.216.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E278930B529 for ; Fri, 28 Nov 2025 10:18:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764325125; cv=none; b=YmDxSgiW5Emf37aphhKVq84XJcI91Ji/5MD0neSfj5HNd1EAQZO/4stalwbYQ2bNtCAkBJeoXmKT8D4sVVZVgiw/FvoTQET8QUWJawrnezq6qDSt6BOo473g3TgiqPAwVKX51x3IWAU+VNrmcMjdtLcRshwYLq3A6vR49Dx37vE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764325125; c=relaxed/simple; bh=I+gwoRSmagBgStXSAMUxGw3r28zlsiNpuvXg9C52lGQ=; h=From:To:Cc:Subject:In-Reply-To:Date:Message-ID:References; b=M6pgk1vbE67igr2KptP3DedJxGmWwuEScwxImDFTL/nG0AYjZ+eClRBe/gYPGzuG2k6j3R3jZL2U6NO41XBlaPFZKsoO3LpTiZDav0arFtZWXVyRlcB/kQhJPqm600ut3IqfDcsNXq1vc9ydE1F0d0dG2IN+dEqoH/bDgcYn82g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=GFGeA+A6; arc=none smtp.client-ip=209.85.216.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GFGeA+A6" Received: by mail-pj1-f45.google.com with SMTP id 98e67ed59e1d1-343ff854297so2220173a91.1 for ; Fri, 28 Nov 2025 02:18:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1764325119; x=1764929919; darn=vger.kernel.org; h=references:message-id:date:in-reply-to:subject:cc:to:from:from:to :cc:subject:date:message-id:reply-to; bh=xKbiTeUE4R3+lfUE5lplRGltmZWgZb40ftgeIyEu5hY=; b=GFGeA+A6SGxlci2XgI0ZRg/5C2ftJ6qwowNe4p2ocYYgKD3nbtH40k/M8Q9xGB+Ygo bloo5h5s8djELhZ6/sOd9w4Ya/Sd2dCyKutgixf+9PTFtPt9QVuZcCjbjU7xOTM7ovBQ O75CpuffVBZbNIyUL1ygl9L0NCYMP561EbBkCClqvsw3KPtUUa4o9u52F+y/utjTIwgA u/Io8+RPe5HoJ7AIyCsEe7gAtSIFd5rEM2xr5si5q+O0JPYoT5D33ogRPYMlOz748Uri Nfbne2E1oDoxioKPIVIWg8oqMHn80KUZJLrA4ey01eBmq3fB42/EimytnT+mijG2lm7q hs8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764325119; x=1764929919; h=references:message-id:date:in-reply-to:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=xKbiTeUE4R3+lfUE5lplRGltmZWgZb40ftgeIyEu5hY=; b=gJNPtIRmNWWio41DajDvedMwufvNNPEjd6qzJAqPzAw80U46x3gfNKjQMkjXaJXSm8 /yKDTFu0dz40A/B6/iFZuwdAo31RVqkHwCGmHGrrUY5vlbQ4Jr2gsXrRrY5tDtJMmiKt j16iSig/vKZx/87Sw98C+gYxmc0fTnqAFXd2f6gRc9s+G2YV7F4g4Z4cdHcR7vBN4TM8 /MYpVmqiyM2OtiaRIKpZb1x2t/KwF8rOOZQ6PhMQjweBNhRAqe0N+X1D57mBVYebH5Hh TTZ6S6Mgx/IpJlThVHKec6bEWD799+1SubXkOYOTNV6EXfOYToSvjKT0VNNxe212/pwg vOyA== X-Forwarded-Encrypted: i=1; AJvYcCW4ddGqbOwNgGBnpz5k3Sj1kUhyX1nspb/2DG2wVQB0s1VHozGi9tminVYK0OL+exBnFu8LRYrTHr9hKY0=@vger.kernel.org X-Gm-Message-State: AOJu0Yz/8W90BX1+dCKv3djXcTV8OtYyhZfWiHaQp6QHqnkhvhAUdgMn BBSnerDmuc7cznRbtFsvLtK92xdkQ2sTmQir0odCp3y8UdllyGZof5pb X-Gm-Gg: ASbGnctpBA6cOiFaqjP9fXh+nhwj8x7eyeLMX+pL1AuY1KrRhmN6h8l3c3BMAl/4N3P oi3aAcizCfwGKT9diA83dVu1Ukzjaf//kckZfKmfm3gSfEAFSr/OnYKhFuLsE0y671PZY5dgFZR 3Dhw6xYZ0LLmKhDyJI8yZ1Pw/ovFBwof3IKh8TT3FF+xwsK25HnKWEgvtzCQZoiw4ewdlLcVmWu /5x1Pg6ZIdC1sV33SoKfn/yAhqS23GDkBESuzyQMvnt77J/bIIAQ3iQOV4hMCfEcvDZwFqT2xcA /8/RypM4MODwWs4NM6knhLsiEwfct8eRXzwCVkVeM17TCfefiQ3tyyE9gMur0syLiSrEmOSUVAU 1TBfwlpo2QvRFKYiWDs+wC3ZOZPOnTxrdQXZdtXYh5OBtyUeS86UgevwtXcZ0qRmCuD26niUSbz P5WjSGnw== X-Google-Smtp-Source: AGHT+IGge2gq0mku+sItZjWCM+QW1VZVA+myW1HYnwoNnxALy8Q8T5+kveNTTgNppIT8jE40jNKyHg== X-Received: by 2002:a17:90b:3e87:b0:343:f509:aa4a with SMTP id 98e67ed59e1d1-34733f50568mr23997342a91.36.1764325119491; Fri, 28 Nov 2025 02:18:39 -0800 (PST) Received: from dw-tp ([49.207.234.175]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3476a7c2ce5sm7999198a91.14.2025.11.28.02.18.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Nov 2025 02:18:38 -0800 (PST) From: Ritesh Harjani (IBM) To: David Hildenbrand , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, David Hildenbrand , Andrew Morton , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , stable@vger.kernel.org Subject: Re: [PATCH v1 2/2] powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages In-Reply-To: <20251021100606.148294-3-david@redhat.com> Date: Fri, 28 Nov 2025 15:42:00 +0530 Message-ID: <87v7iumpov.ritesh.list@gmail.com> References: <20251021100606.148294-1-david@redhat.com> <20251021100606.148294-3-david@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: David Hildenbrand writes: > 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. > > Not completely sure whether really is stable material, but the fix is > trivial so let's just CC stable. > > This was found by code inspection. > > Fixes: fe030c9b85e6 ("powerpc/pseries/cmm: Implement balloon compaction") > Cc: > Signed-off-by: David Hildenbrand > --- > arch/powerpc/platforms/pseries/cmm.c | 1 + > 1 file changed, 1 insertion(+) Make sense to add vmstat counter for BALLOON_MIGRATE as well. The changes looks good to me. Please feel free to add: Reviewed-by: Ritesh Harjani (IBM)