From nobody Sun Feb 8 15:29:11 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 EFB2D823A2 for ; Tue, 9 Apr 2024 09:25:22 +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=1712654723; cv=none; b=YUzzZIwqpnOdqjjeaADePbVarVtcm0U6//wu0p3uAgqO7FOXqqkkryFOzQFo0HAeljjBkPnlK0AuHhhPsaRBxoKqQPayb0/nWtO3zta04f5jicxgaLhxKZoZGEaa80+oYLCd2A/EKPNjEk7GRhA0kABYShtCQrHCcmSFeEtswEE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712654723; c=relaxed/simple; bh=h5mTUeVzSSO40P/dqunWDfKwvbrZ6ROf/OJsSV/+/Tc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AufyjW2xudqykNrEPzre+ISQvOq5CBDRpMzNo2zQRtzVMYL1eVGAKwnUCh+5Y/HLUpqQYZ0+KyHtgkkFKvhUdUPcyoYwO0VhmZArH7a9kUGRwPngA9EeOMEloQKvK3qWfqjAkwdFwUrQ1SXkj8ZbqPNjD5grf/3AfsBJSBGBJY4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cHW5B7MG; 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="cHW5B7MG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66ADAC433B2; Tue, 9 Apr 2024 09:25:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712654722; bh=h5mTUeVzSSO40P/dqunWDfKwvbrZ6ROf/OJsSV/+/Tc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cHW5B7MG3rTIH2E0eZCzzevv5RY2jP8XktDsl8WLKbwItLlisGdKj492muL5NV4mm av+RdTMeEMaMoDsAGubCuRkp+hARu4OGfmFTc85AP7jc7sAxULjkUcM7mdviojnabW 1H9tHT4Y8NVSSOFaPSkMeCychOjudYI9JrQaQ3D6p9Q5kdA3d7F2Jw0WxPEVL771VY CIJC3gE5IJ3yIRUl1QFORzLz2EPuU1CDn00wT4HkyOjJ3kdBDjeOyZ8OPD/tcw9G9I JZWAIQHvQRvw/67Tmt0tYZYZtispL4c2DpDAYtoivh92pGDWgK0hFcj8zklPe3q91p IPnjllxt9U90w== From: alexs@kernel.org To: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: "Alex Shi (tencent)" , Izik Eidus , Matthew Wilcox , Andrea Arcangeli , Hugh Dickins , Chris Wright , David Hildenbrand Subject: [PATCH v4 3/9] mm/ksm: add folio_set_stable_node Date: Tue, 9 Apr 2024 17:28:18 +0800 Message-ID: <20240409092826.1733637-4-alexs@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240409092826.1733637-1-alexs@kernel.org> References: <20240409092826.1733637-1-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)" Turn set_page_stable_node() into a wrapper folio_set_stable_node, and then use it to replace the former. we will merge them together after all place converted to folio. Signed-off-by: Alex Shi (tencent) Cc: Izik Eidus Cc: Matthew Wilcox Cc: Andrea Arcangeli Cc: Hugh Dickins Cc: Chris Wright Reviewed-by: David Hildenbrand --- mm/ksm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/mm/ksm.c b/mm/ksm.c index ea3dabf71e47..c9b7c5701f22 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1109,6 +1109,12 @@ static inline void set_page_stable_node(struct page = *page, page->mapping =3D (void *)((unsigned long)stable_node | PAGE_MAPPING_KSM); } =20 +static inline void folio_set_stable_node(struct folio *folio, + struct ksm_stable_node *stable_node) +{ + set_page_stable_node(&folio->page, stable_node); +} + #ifdef CONFIG_SYSFS /* * Only called through the sysfs control interface: @@ -3241,7 +3247,7 @@ void folio_migrate_ksm(struct folio *newfolio, struct= folio *folio) * has gone stale (or that folio_test_swapcache has been cleared). */ smp_wmb(); - set_page_stable_node(&folio->page, NULL); + folio_set_stable_node(folio, NULL); } } #endif /* CONFIG_MIGRATION */ --=20 2.43.0