From nobody Sun Feb 8 15:29:02 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 C00FD15EFB3 for ; Mon, 25 Mar 2024 12:46:07 +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=1711370767; cv=none; b=KnN9ClpG3suHQela3qbH3vZZ6o55uYJIIvHGa577axp310k8ubgRnKD/PlNGotFXbeZOdK7d4/yhRrtDBA5y8whH+57A6LE8cgkD3UKX8kFZXxFSWubTtzs47JaB4qA0dEJjoIJEBtlEjgAbu05Aqwzw6g5MCpPoDf6bkzFi/PY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711370767; c=relaxed/simple; bh=1FMqhrTGzv5mI88ql04GgunChyuiZ5EvE2fgo8IbQMc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KVQej9VM4x1cD/m8Hjr1FnDIAztOpwXvScaZd7qGbcx1BF0hUeIwTpyNjHq6vKMXaedkwr9+iT5VehGzldvJv2o1UzS5AQTRYgp0KUIGIdjbAQgTytjFBF98MpH/Fmg28xJ8LHi+8mxNLLEn46aOh+pE8rkagtZ5MAA+zCjzcKQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Q6AU0w0G; 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="Q6AU0w0G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 71F09C433C7; Mon, 25 Mar 2024 12:46:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711370767; bh=1FMqhrTGzv5mI88ql04GgunChyuiZ5EvE2fgo8IbQMc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q6AU0w0G/erVGHeJFCX8w/EJeqQFE15Jq05PpOfDQBhQz0mLQRG3ULcPNL3SLertO hm4n2HJMGH+yHfEe8vGRHIR/elq9l+W/2TbpJZ2GhGaruVJ01wKwR0R7Cmca21hYkV xFOaBsAKY2ZQPFpe4yhgc4Rzny2PfvvMx/gv6TAdu0j3fMV7kgXUoDoZaBVb4GU+2y /aPGy4PlY/7p0uinoDfWfyGGQWsWOd+zgrV+h+f2TvnIx5fTUhmTu7a4xO7oracQtb ZQnNvcIT7N/spzY9RL0DCzzdiFMFj8Q99B+mVOCimWgsSOHsYZEdx6ErXYixa63Cz6 YAE22wFF72Aog== 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, ryncsn@gmail.com Cc: "Alex Shi (tencent)" , Hugh Dickins , Chris Wright Subject: [PATCH v3 08/14] mm/ksm: Convert chain series funcs to use folio Date: Mon, 25 Mar 2024 20:48:55 +0800 Message-ID: <20240325124904.398913-9-alexs@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240325124904.398913-1-alexs@kernel.org> References: <20240325124904.398913-1-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 5d1f62e7462a..7188997437d3 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