From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f199.google.com (mail-pl1-f199.google.com [209.85.214.199]) (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 4ABDF49F12A for ; Wed, 2 Sep 2026 13:29:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788355751; cv=none; b=XF2UnawC1qShPWGmOMiDvAaU/ZWIsaP2rsv848yBL2QJYT66usi4sEkPQwi58v6HdSjrBwtiTWylJLN7Rebq+D7c4UV7mPum1309zJOTWcAMwRqGPAiFqUWRuall+7vbzKg1rYjrwWbCIIRaRPfH73OJGU/J8PyxNWa0O4n6GX4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788355751; c=relaxed/simple; bh=c8WBW1pnn0loekPRPl0wrUlaDmIkbo4zuoz4LRRoASQ=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=Im5mq+65qMW0csZibbZZeouHvkrq5YmkUCGhfP3KrkK3miwIDttCqRtpO+kskvS5ko8XQ1KoXN5XRU9vttG0ZCEWkxEQOmunZTcMluIXDKO5riS4rY2A7vT69RMyu7vdHIQ56Nj0cMTEX6yddPIg7fa9pd/0+OS3BFp/L7K8laQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=jdqtzIZk; arc=none smtp.client-ip=209.85.214.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="jdqtzIZk" Received: by mail-pl1-f199.google.com with SMTP id d9443c01a7336-2d02df2bf09so10840905ad.0 for ; Wed, 02 Sep 2026 06:29:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1788355748; x=1788960548; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=ipWz6RsGTzunItby4GsbJNxElWjk3oalhREfbMO20mA=; b=jdqtzIZkBNk533vpAdjQk+E7GTe2ZAnfceHzGTGsRuZHen5Gk/CV/khaLPLgMrB/sR IpnIf5YspRHDM+9E26dlvc85WElZ8NKDLU9OddQxH8QAOQDsp70PsqBVmP5oalCfmwlk F9cgwHtHsZjsErID7JdfuuMysX6t8DXDbA/r9Vr2lYJlPnYuk8NpOrjxLQbQyXXaAzNr YsqqF2LmvBTthelxl5jECmNMAcBCPf4yvZRRl9yXDfUlVMmvTQrVp7LNsQGuWYzgx8y8 2HG9udPlepCP0wfqZQH6OQ/asF7ykaGroUgEzLcgL+zkm4KcguKd3E88ypOJPFv5uO+/ 0sbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788355748; x=1788960548; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=ipWz6RsGTzunItby4GsbJNxElWjk3oalhREfbMO20mA=; b=Ma3K46XuNxw7Jbr7gSRdbv176zwIX9Sn+JcXIrys4eTD3uYQt74Y0VlmD7Pd4MKE0B TP2bBludWf24AkKcTYtv1Ojp9tb6lxPDH+h8JvpgpbAjOr59C1jJIMxwBvKYuI0m5c09 9A8cSy+rstl+Sj/PdqhVh/arSAkg9pv2gbBfaSzzmK/JMQPgy/PHg8jo3TzPOdyPjVSN 6NRPPOVqxXRqEAhNmxsdxvCVSRUltmdFOJ2QJ12M10yP830O84bu+F/YS7BXJKal3bgN MaSjbsYofegJQWtyXkdL5so+BTIIHKk+pVFOZOUNIArZZUQe1D/bK45kGibC6oIOiL8A nGhg== X-Forwarded-Encrypted: i=1; AKwUvBz5pxHjjr0cVernpfaUUo2X2K8BCYV1yNAx1c1AMUZ8y9Gto2L/S/F2x8dsmM2nIOxJR0Y=@vger.kernel.org X-Gm-Message-State: AFuF++mWQ2/O9ROkmrWoF0epsocfVdzHYkOVmB5X4o+Srd+pJwtKsZ3/ AIPgrTszJFafjwdMq7gTncKvH453IjOxc4Sc62qYCzUI1a06mcTVlWkDkSq+meVkBOl9BuGrdHl 8fKPVCg== X-Received: from plxe5.prod.google.com ([2002:a17:902:ef45:b0:2c9:b703:3bfb]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:3887:b0:2cc:864b:539 with SMTP id d9443c01a7336-2daec625d64mr73388455ad.6.1788355748310; Wed, 02 Sep 2026 06:29:08 -0700 (PDT) Date: Wed, 2 Sep 2026 06:29:07 -0700 In-Reply-To: <02876cea-5727-2ca4-bead-73659ea6fec4@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <02876cea-5727-2ca4-bead-73659ea6fec4@google.com> Message-ID: Subject: Re: [PATCH] mm/folio: EXPORT_SYMBOL_FOR_KVM(lru_cache_drain_for_folio) From: Sean Christopherson To: Hugh Dickins Cc: Andrew Morton , Ackerley Tng , Binbin Wu , David Hildenbrand , Fuad Tabba , Matthew Wilcox , Vlastimil Babka , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset="us-ascii" On Tue, Sep 01, 2026, Hugh Dickins wrote: > From: Ackerley Tng > > To simplify independent development in the KVM and MM subsystems, now > export to KVM the lru_cache_drain_for_folio() which MM added in 7.3-rc1. > > Link: https://lore.kernel.org/lkml/bd6c9c74-e374-a9d3-ba1f-8b6f430894fc@google.com/T/#u > Acked-by: Vlastimil Babka (SUSE) > Suggested-by: David Hildenbrand > Reviewed-by: Fuad Tabba > Reviewed-by: Binbin Wu > Signed-off-by: Ackerley Tng > Signed-off-by: Hugh Dickins > --- > Hoping for 7.3-rc2, which would make my life easier: thanks! FWIW, squeezing this into rc2 would make my life (marginally) easier as well, as this is the only non-KVM change in Ackerley's guest_memfd series. > mm/folio.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/mm/folio.c b/mm/folio.c > index c02dcea9c03c..50a6dbe55998 100644 > --- a/mm/folio.c > +++ b/mm/folio.c > @@ -33,6 +33,7 @@ > #include > #include > #include > +#include > > #include "internal.h" > #include "page_alloc.h" > @@ -926,6 +927,7 @@ void lru_cache_drain_for_folio(const struct folio *folio, > *drained = LRU_CACHE_DRAINED_ALL; > } > } > +EXPORT_SYMBOL_FOR_KVM(lru_cache_drain_for_folio); > > atomic_t lru_disable_count = ATOMIC_INIT(0); > > -- > base-commiti: cee9395acd8043be0644b25c34bfa86623f2b935