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 BF9ED346AF5 for ; Mon, 5 Jan 2026 19:28:39 +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=1767641319; cv=none; b=eWknxVLKMB46gHXkgMWAdCJBDbXgaSxSz28sB8pg9sBZml6FtnaO7vbjXzRukFhO1qf2BhrZ8Uj8qAzGU3FEIu5JDbK3gGY4hLsYjPfSSHokM4Qks10vVXK7qDBKn6Qahx/77FH/2pngSfYpoNXNaEEXTq89UyNWNsRYkTypYGo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767641319; c=relaxed/simple; bh=ie+dGc43XsYVBI4wrf9ySpnP7Q+07+MvKEmg1B7prqk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BuhnwK5HKbZAtwcBsez5yydMEbME29j0LF8N7oXqpOMSlU+xYZSEZcaQqNyHKskNV18DdllJwt9NsytDogxIkG6xrKfTc+CDy6VM/af3OLnQs23x2AbXefIvxIoFWoKfYh2GbaecjZCLGlK0pRPC+I63yDOY2czE8v6NOl+M66Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=avr7l/zR; 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="avr7l/zR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 43B53C19423; Mon, 5 Jan 2026 19:28:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767641319; bh=ie+dGc43XsYVBI4wrf9ySpnP7Q+07+MvKEmg1B7prqk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=avr7l/zRx785UYtW3vLebPS1ym4HGyEEWUg9Muxfo7WT2rSOCxPcEIELcHgxWiYoG /pSbFdx7MAUvwImbRSbMjf2CCnkMNxjcCdErPBVlUjZwCdDJz7vn3MsneDjoO4wpno /4eVqlp8aU2TD3kYq84E0Lz8wq0RjYyoITjBwX0oxPDbuf7SxcxauSaOqcnwCMzhZn 06T2nr5A87fs9bcl/+kxN/lJqLVq0yCm2D6uvMWTyEeLpk3+Oz3sLDu1Cx5FnRebfi 3HSU7nozCwBy04J5lTS13R5zolRkMujHXBWGdrVkRG2Hza7Iy1HYBBiaa3+/4YjIxT vqoyilf/CL+bw== 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 5.15.y 4/4] powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages Date: Mon, 5 Jan 2026 14:28:26 -0500 Message-ID: <20260105192826.2740369-4-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260105192826.2740369-1-sashal@kernel.org> References: <2026010548-impulse-unspoken-ac63@gregkh> <20260105192826.2740369-1-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 0507d3874c45..de93f31768d3 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -550,6 +550,7 @@ 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