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Mon, 20 Sep 2021 13:07:06 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp3.osuosl.org (amavisd-new); dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=linuxfoundation.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gug1p0ntBRNu for ; Mon, 20 Sep 2021 13:07:05 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp3.osuosl.org (Postfix) with ESMTPS id C6B79605AD for ; Mon, 20 Sep 2021 13:07:05 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id A8E546109E; Mon, 20 Sep 2021 13:07:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632143225; bh=IgTB39+ODK/T3fPhHRFyjuuOtu3NZBKgfcM0qEnSdno=; h=Subject:To:Cc:From:Date:From; b=q9Fs/YvC5GhKJXQplnE0BkfsZoT5Z6zAVr7QzRrhEdBl6VyZKPwvfVMPTQZzuU+XK KKGReu4d2h0O7+4hEGU2e2+NAnFybDWIx/IpvAQKg0Fw25QA6FyPzT2zSd2hHrvlxi DeL042C3aPzyIHE9G0x5vfqVReXgFarvK0+Bl2tk= Subject: Patch "mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()" has been added to the 4.14-stable tree To: 20210607195430.48228-1-david@redhat.com, akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, anton@ozlabs.org, ardb@kernel.org, bauerman@linux.ibm.com, benh@kernel.crashing.org, bhe@redhat.com, borntraeger@de.ibm.com, bp@alien8.de, catalin.marinas@arm.com, cheloha@linux.ibm.com, christophe.leroy@c-s.fr, dalias@libc.org, dan.j.williams@intel.com, dave.hansen@linux.intel.com, dave.jiang@intel.com, david@redhat.com, gor@linux.ibm.com, gregkh@linuxfoundation.org, hca@linux.ibm.com, hpa@zytor.com, jasowang@redhat.com, joe@perches.com, justin.he@arm.com, ldufour@linux.ibm.com, lenb@kernel.org, luto@kernel.org, mhocko@kernel.org, michel@lespinasse.org, mingo@redhat.com, mpe@ellerman.id.au, mst@redhat.com, nathanl@linux.ibm.com, npiggin@gmail.com, osalvador@suse.de, pankaj.gupta.linux@gmail.com, pankaj.gupta@ionos.com, pasha.tatashin@soleen.com, paulus@samba.org, peterz@infradead.org, pmorel@linux.ibm.com, rafael.j.wysocki@intel.com, richard.weiyang@linux.alibaba.com, rjw@rjwysocki.net, rppt@kernel.org, slyfox@gentoo.org, songmuchun@bytedance.com, tglx@linutronix.de, torvalds@linux-foundation.org, vbabka@suse.cz, virtualization@lists.linux-foundation.org, vishal.l.verma@intel.com, vkuznets@redhat.com, wangkefeng.wang@huawei.com, will@kernel.org, ysato@users.sourceforge.jp From: Date: Mon, 20 Sep 2021 15:07:03 +0200 Message-ID: <163214322377202@kroah.com> MIME-Version: 1.0 X-stable: commit X-Patchwork-Hint: ignore Cc: stable-commits@vger.kernel.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" This is a note to let you know that I've just added the patch titled mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range() to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mm-memory_hotplug-use-unsigned-long-for-pfn-in-zone_for_pfn_range.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >From 7cf209ba8a86410939a24cb1aeb279479a7e0ca6 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Tue, 7 Sep 2021 19:54:59 -0700 Subject: mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range() From: David Hildenbrand commit 7cf209ba8a86410939a24cb1aeb279479a7e0ca6 upstream. Patch series "mm/memory_hotplug: preparatory patches for new online policy and memory" These are all cleanups and one fix previously sent as part of [1]: [PATCH v1 00/12] mm/memory_hotplug: "auto-movable" online policy and memory groups. These patches make sense even without the other series, therefore I pulled them out to make the other series easier to digest. [1] https://lkml.kernel.org/r/20210607195430.48228-1-david@redhat.com This patch (of 4): Checkpatch complained on a follow-up patch that we are using "unsigned" here, which defaults to "unsigned int" and checkpatch is correct. As we will search for a fitting zone using the wrong pfn, we might end up onlining memory to one of the special kernel zones, such as ZONE_DMA, which can end badly as the onlined memory does not satisfy properties of these zones. Use "unsigned long" instead, just as we do in other places when handling PFNs. This can bite us once we have physical addresses in the range of multiple TB. Link: https://lkml.kernel.org/r/20210712124052.26491-2-david@redhat.com Fixes: e5e689302633 ("mm, memory_hotplug: display allowed zones in the preferred ordering") Signed-off-by: David Hildenbrand Reviewed-by: Pankaj Gupta Reviewed-by: Muchun Song Reviewed-by: Oscar Salvador Cc: David Hildenbrand Cc: Vitaly Kuznetsov Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: Pankaj Gupta Cc: Wei Yang Cc: Michal Hocko Cc: Dan Williams Cc: Anshuman Khandual Cc: Dave Hansen Cc: Vlastimil Babka Cc: Mike Rapoport Cc: "Rafael J. Wysocki" Cc: Len Brown Cc: Pavel Tatashin Cc: Heiko Carstens Cc: Michael Ellerman Cc: Catalin Marinas Cc: virtualization@lists.linux-foundation.org Cc: Andy Lutomirski Cc: "Aneesh Kumar K.V" Cc: Anton Blanchard Cc: Ard Biesheuvel Cc: Baoquan He Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Christian Borntraeger Cc: Christophe Leroy Cc: Dave Jiang Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Jia He Cc: Joe Perches Cc: Kefeng Wang Cc: Laurent Dufour Cc: Michel Lespinasse Cc: Nathan Lynch Cc: Nicholas Piggin Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Pierre Morel Cc: "Rafael J. Wysocki" Cc: Rich Felker Cc: Scott Cheloha Cc: Sergei Trofimovich Cc: Thiago Jung Bauermann Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Vishal Verma Cc: Will Deacon Cc: Yoshinori Sato Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: David Hildenbrand Signed-off-by: Greg Kroah-Hartman --- include/linux/memory_hotplug.h | 4 ++-- mm/memory_hotplug.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -332,6 +332,6 @@ extern struct page *sparse_decode_mem_ma unsigned long pnum); extern bool allow_online_pfn_range(int nid, unsigned long pfn, unsigned long nr_pages, int online_type); -extern struct zone *zone_for_pfn_range(int online_type, int nid, unsigned start_pfn, - unsigned long nr_pages); +extern struct zone *zone_for_pfn_range(int online_type, int nid, + unsigned long start_pfn, unsigned long nr_pages); #endif /* __LINUX_MEMORY_HOTPLUG_H */ --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -842,8 +842,8 @@ static inline struct zone *default_zone_ return movable_node_enabled ? movable_zone : kernel_zone; } -struct zone * zone_for_pfn_range(int online_type, int nid, unsigned start_pfn, - unsigned long nr_pages) +struct zone *zone_for_pfn_range(int online_type, int nid, + unsigned long start_pfn, unsigned long nr_pages) { if (online_type == MMOP_ONLINE_KERNEL) return default_kernel_zone_for_pfn(nid, start_pfn, nr_pages); Patches currently in stable-queue which might be from david@redhat.com are queue-4.14/x86-mm-fix-kern_addr_valid-to-cope-with-existing-but-not-present-entries.patch queue-4.14/mm-memory_hotplug-use-unsigned-long-for-pfn-in-zone_for_pfn_range.patch queue-4.14/mm-page_alloc-speed-up-the-iteration-of-max_order.patch _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization