From nobody Sat Feb 7 08:02:43 2026 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 DF35E1B7EF for ; Fri, 22 Mar 2024 08:34:54 +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=1711096495; cv=none; b=goo4azYaamFpw3io2TdZ08kFKRaNVkZ/EAcxZUrRTJBdH9nmA781K9FsjH8aaJpxqd1Zt9ownRYSaWWYiJ5271eq4edAF772omJLR5rMY1SftrOg6WG1YTnxoMsf3t2pCuMTAbQVaKgA6W3vz/Ek/jCWaZiowStOp48YmSNnNzY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711096495; c=relaxed/simple; bh=Czj2cXDjtWaQ7qWM/ntpEjf7pxB7Zlc771aFb0A0Wn0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=f7anrIuR4+nuwhWwq/bhqDwcBEV72LxdE8jOZKLt7hNL+dA9pE2s/lrpEyeyEAvgwZhJGME6dqVctAadgc5Z/Gfcep+k3mhAsGCYr0z19Q0B3i+W7IdBIJQ332OBz6BNX/IX8+A4zXdJ38jZ4mDA1ZMHzwzqJVwaMvBEU2DPuxE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iSqvlKnQ; 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="iSqvlKnQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 45184C43399; Fri, 22 Mar 2024 08:34:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711096494; bh=Czj2cXDjtWaQ7qWM/ntpEjf7pxB7Zlc771aFb0A0Wn0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iSqvlKnQKbuzNlo/1UqKPoPip2scXPO84E9+9X8dNblrtlYt2FWgou2idLr2Cf624 8JDv38d4rMAdgz4MTUUko9xkN20vVseInMkafo4ridyT8QrSEK6mUIMSW1s2bGoCWb 2oA1/SD9crmzZec6ZPZSk2pUNViw39caL5q+bQOFPvg7lP7aJp0rZC7ZSkDGyd6tr1 fZxBXpnGQ83pK0lK/Su/GbJrSrPEaS2sLnmOcnErBD6joRlbQsbF4sqsMRfph6EfUs EJCIbyKNVbuK1tMDzHm/u1kuRYEqAnEIsJ/orGgHG7dy/Yqe89xaP0SuprV37NcFFC 2Stk7Cot+7HvA== From: alexs@kernel.org To: Matthew Wilcox , Andrea Arcangeli , Izik Eidus , david@redhat.com, Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: "Alex Shi (tencent)" , Hugh Dickins , Chris Wright Subject: [PATCH v2 08/14] mm/ksm: Convert chain series funcs to use folio Date: Fri, 22 Mar 2024 16:36:55 +0800 Message-ID: <20240322083703.232364-9-alexs@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240322083703.232364-1-alexs@kernel.org> References: <20240322083703.232364-1-alexs@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Alex Shi (tencent)" In ksm stable tree all page are single, let's convert them to use folios. Change return type to void is ugly, but for a series funcs, it's still a bit simpler than adding new funcs. And they will be changed to 'struct folio' soon. Signed-off-by: Alex Shi (tencent) Cc: Izik Eidus Cc: Matthew Wilcox Cc: Andrea Arcangeli Cc: Hugh Dickins Cc: Chris Wright --- mm/ksm.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/mm/ksm.c b/mm/ksm.c index f41491cf13c6..30570e1f68ec 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1777,7 +1777,7 @@ static struct ksm_stable_node *stable_node_dup_any(st= ruct ksm_stable_node *stabl * function and will be overwritten in all cases, the caller doesn't * need to initialize it. */ -static struct page *__stable_node_chain(struct ksm_stable_node **_stable_n= ode_dup, +static void *__stable_node_chain(struct ksm_stable_node **_stable_node_dup, struct ksm_stable_node **_stable_node, struct rb_root *root, bool prune_stale_stable_nodes) @@ -1799,24 +1799,24 @@ static struct page *__stable_node_chain(struct ksm_= stable_node **_stable_node_du prune_stale_stable_nodes); } =20 -static __always_inline struct page *chain_prune(struct ksm_stable_node **s= _n_d, +static __always_inline void *chain_prune(struct ksm_stable_node **s_n_d, struct ksm_stable_node **s_n, struct rb_root *root) { return __stable_node_chain(s_n_d, s_n, root, true); } =20 -static __always_inline struct page *chain(struct ksm_stable_node **s_n_d, +static __always_inline void *chain(struct ksm_stable_node **s_n_d, struct ksm_stable_node *s_n, struct rb_root *root) { struct ksm_stable_node *old_stable_node =3D s_n; - struct page *tree_page; + struct folio *tree_folio; =20 - tree_page =3D __stable_node_chain(s_n_d, &s_n, root, false); + tree_folio =3D __stable_node_chain(s_n_d, &s_n, root, false); /* not pruning dups so s_n cannot have changed */ VM_BUG_ON(s_n !=3D old_stable_node); - return tree_page; + return tree_folio; } =20 /* --=20 2.43.0