From patchwork Thu Aug 1 06:08:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13749682 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 52A4F1581EA; Thu, 1 Aug 2024 06:10:09 +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=1722492609; cv=none; b=sOtBRr3XbaejscP2m5DcgyFxI5E63vr+jflGH02Eri8WQBaaXteViuZHXIkiICzDtM59sXRW+u3BdzMFtcF3CbrJlYRrl+LhZ6RatP5Mp7MypIaUpMI9qcR4C+6mPV34SwyzK+LFUJfv5BHoSxizaLXoJVjIK1QwivoLc4gEmHk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722492609; c=relaxed/simple; bh=+b1cOkZzBkabktp5Vtr0BxOA2OwItOU3swcoPl+STrQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Vl2xy4PJAYLsVd57wUJA12z9AGGwshaTWOvDB63uo26wfeyZ1nzC1WQ+xEMZG+WJ0/d0vynNCHwTfCHTh94eRKCgJ/RC0tM8QNbe3nAOcmXi34+2MDVvZ4V2D/wXEb6Zf9zXohzTJssvQbeEykzD4cltq5LGzfO1gYjM2lJGdsA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MFAG9F3f; 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="MFAG9F3f" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DAB07C4AF11; Thu, 1 Aug 2024 06:09:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722492608; bh=+b1cOkZzBkabktp5Vtr0BxOA2OwItOU3swcoPl+STrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MFAG9F3fUnIEGckALXUsgPgJNDOGxKIktrZWhCPRrwe1l/PA4t95t0glD4Bw67Wwj 56IqcN7KC3zzeCXB3c8CrI5bl5iDUVSKZrsLqr43Ecm7gRjqRFCAR9bIDA59V6hoqm Xly5FwnM79IMgwgHQI+TPINCsSXXhleTBgnO0f80JBYd2cMfyLGz32VP93mcQrjqJA Ne73hzkU/Y8f6hDf1oBGnhpCmZoHktUlCUaZ+WLWYPT98uUNEZFkSQTU50QEbSbj1J 0OJkDgvPRbuCaVMusjazFYkXiGRxn2uK7gxV2/FyMUUmWwS+NFGAia450ymPPe8PXm gEBtBz7iXoOvw== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Andreas Larsson , Andrew Morton , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dan Williams , Dave Hansen , David Hildenbrand , "David S. Miller" , Davidlohr Bueso , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Jonathan Corbet , Michael Ellerman , Mike Rapoport , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Samuel Holland , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , Zi Yan , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, nvdimm@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH v3 07/26] mm: drop CONFIG_HAVE_ARCH_NODEDATA_EXTENSION Date: Thu, 1 Aug 2024 09:08:07 +0300 Message-ID: <20240801060826.559858-8-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240801060826.559858-1-rppt@kernel.org> References: <20240801060826.559858-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: "Mike Rapoport (Microsoft)" There are no users of HAVE_ARCH_NODEDATA_EXTENSION left, so arch_alloc_nodedata() and arch_refresh_nodedata() are not needed anymore. Replace the call to arch_alloc_nodedata() in free_area_init() with memblock_alloc(), remove arch_refresh_nodedata() and cleanup include/linux/memory_hotplug.h from the associated ifdefery. Signed-off-by: Mike Rapoport (Microsoft) Tested-by: Zi Yan # for x86_64 and arm64 --- include/linux/memory_hotplug.h | 48 ---------------------------------- mm/mm_init.c | 3 +-- 2 files changed, 1 insertion(+), 50 deletions(-) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index ebe876930e78..b27ddce5d324 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -16,54 +16,6 @@ struct resource; struct vmem_altmap; struct dev_pagemap; -#ifdef CONFIG_HAVE_ARCH_NODEDATA_EXTENSION -/* - * For supporting node-hotadd, we have to allocate a new pgdat. - * - * If an arch has generic style NODE_DATA(), - * node_data[nid] = kzalloc() works well. But it depends on the architecture. - * - * In general, generic_alloc_nodedata() is used. - * - */ -extern pg_data_t *arch_alloc_nodedata(int nid); -extern void arch_refresh_nodedata(int nid, pg_data_t *pgdat); - -#else /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */ - -#define arch_alloc_nodedata(nid) generic_alloc_nodedata(nid) - -#ifdef CONFIG_NUMA -/* - * XXX: node aware allocation can't work well to get new node's memory at this time. - * Because, pgdat for the new node is not allocated/initialized yet itself. - * To use new node's memory, more consideration will be necessary. - */ -#define generic_alloc_nodedata(nid) \ -({ \ - memblock_alloc(sizeof(*pgdat), SMP_CACHE_BYTES); \ -}) - -extern pg_data_t *node_data[]; -static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat) -{ - node_data[nid] = pgdat; -} - -#else /* !CONFIG_NUMA */ - -/* never called */ -static inline pg_data_t *generic_alloc_nodedata(int nid) -{ - BUG(); - return NULL; -} -static inline void arch_refresh_nodedata(int nid, pg_data_t *pgdat) -{ -} -#endif /* CONFIG_NUMA */ -#endif /* CONFIG_HAVE_ARCH_NODEDATA_EXTENSION */ - #ifdef CONFIG_MEMORY_HOTPLUG struct page *pfn_to_online_page(unsigned long pfn); diff --git a/mm/mm_init.c b/mm/mm_init.c index 75c3bd42799b..bcc2f2dd8021 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -1838,11 +1838,10 @@ void __init free_area_init(unsigned long *max_zone_pfn) if (!node_online(nid)) { /* Allocator not initialized yet */ - pgdat = arch_alloc_nodedata(nid); + pgdat = memblock_alloc(sizeof(*pgdat), SMP_CACHE_BYTES); if (!pgdat) panic("Cannot allocate %zuB for node %d.\n", sizeof(*pgdat), nid); - arch_refresh_nodedata(nid, pgdat); } pgdat = NODE_DATA(nid);