From: Tejun Heo <tj@kernel.org>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Tang Chen <tangchen@cn.fujitsu.com>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Renninger <trenn@suse.de>,
Jiang Liu <jiang.liu@huawei.com>,
Wen Congyang <wency@cn.fujitsu.com>,
Lai Jiangshan <laijs@cn.fujitsu.com>,
Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
mina86@mina86.com, Chen Gong <gong.chen@linux.intel.com>,
vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com,
Rik van Riel <riel@redhat.com>,
jweiner@redhat.com, Prarit Bhargava <prarit@redhat.com>,
the arch/x86 maintainers <x86@kernel.org>,
linux-doc@vger.kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Linux MM <linux-mm@kvack.org>, "Rafael J. Wysocki" <rjw@sisk.pl>,
Jacob Shin <jacob.shin@amd.com>,
Pekka Enberg <penberg@kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>
Subject: Re: [Part1 PATCH v5 03/22] x86, ACPI, mm: Kill max_low_pfn_mapped
Date: Mon, 17 Jun 2013 16:08:13 -0700 [thread overview]
Message-ID: <CAOS58YMuJQ823rrZFHXRdM3bakbzXKq5DWTSkYfYtdV5AZcONQ@mail.gmail.com> (raw)
In-Reply-To: <CAE9FiQXTAT69WKvzXe7FuuSqiA9epuSGPFP2ihhpDZkqYtn9_g@mail.gmail.com>
On Mon, Jun 17, 2013 at 2:13 PM, Yinghai Lu <yinghai@kernel.org> wrote:
>> No bigge, but why (1ULL << 32) - 1? Shouldn't it be just 1ULL << 32?
>> memblock deals with [@start, @end) areas, right?
>
> that is for 32bit, when phys_addr_t is 32bit, in that case
> (1ULL<<32) cast to 32bit would be 0.
Right, it'd work the same even after overflowing but yeah, it can be confusing.
Thanks.
--
tejun
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next prev parent reply other threads:[~2013-06-17 23:08 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-13 13:02 [Part1 PATCH v5 00/22] x86, ACPI, numa: Parse numa info earlier Tang Chen
2013-06-13 13:02 ` [Part1 PATCH v5 01/22] x86: Change get_ramdisk_{image|size}() to global Tang Chen
2013-06-13 13:02 ` [Part1 PATCH v5 02/22] x86, microcode: Use common get_ramdisk_{image|size}() Tang Chen
2013-06-13 13:02 ` [Part1 PATCH v5 03/22] x86, ACPI, mm: Kill max_low_pfn_mapped Tang Chen
2013-06-17 21:04 ` Tejun Heo
2013-06-17 21:13 ` Yinghai Lu
2013-06-17 23:08 ` Tejun Heo [this message]
2013-06-13 13:02 ` [Part1 PATCH v5 04/22] x86, ACPI: Search buffer above 4GB in a second try for acpi initrd table override Tang Chen
2013-06-17 21:06 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 05/22] x86, ACPI: Increase acpi initrd override tables number limit Tang Chen
2013-06-13 13:02 ` [Part1 PATCH v5 06/22] x86, ACPI: Split acpi_initrd_override() into find/copy two steps Tang Chen
2013-06-13 13:02 ` [Part1 PATCH v5 07/22] x86, ACPI: Store override acpi tables phys addr in cpio files info array Tang Chen
2013-06-17 23:38 ` Tejun Heo
2013-06-17 23:40 ` Yinghai Lu
2013-06-17 23:52 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 08/22] x86, ACPI: Make acpi_initrd_override_find work with 32bit flat mode Tang Chen
2013-06-18 0:07 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 09/22] x86, ACPI: Find acpi tables in initrd early from head_32.S/head64.c Tang Chen
2013-06-18 0:33 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 10/22] x86, mm, numa: Move two functions calling on successful path later Tang Chen
2013-06-18 0:53 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 11/22] x86, mm, numa: Call numa_meminfo_cover_memory() checking early Tang Chen
2013-06-18 1:05 ` Tejun Heo
2013-06-13 13:02 ` [Part1 PATCH v5 12/22] x86, mm, numa: Move node_map_pfn_alignment() to x86 Tang Chen
2013-06-18 1:08 ` Tejun Heo
2013-06-13 13:03 ` [Part1 PATCH v5 13/22] x86, mm, numa: Use numa_meminfo to check node_map_pfn alignment Tang Chen
2013-06-18 1:40 ` Tejun Heo
2013-06-13 13:03 ` [Part1 PATCH v5 14/22] x86, mm, numa: Set memblock nid later Tang Chen
2013-06-18 1:45 ` Tejun Heo
2013-06-13 13:03 ` [Part1 PATCH v5 15/22] x86, mm, numa: Move node_possible_map setting later Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 16/22] x86, mm, numa: Move numa emulation handling down Tang Chen
2013-06-18 1:58 ` Tejun Heo
2013-06-18 6:22 ` Yinghai Lu
2013-06-18 7:13 ` Yinghai Lu
2013-06-19 21:25 ` Yinghai Lu
2013-06-13 13:03 ` [Part1 PATCH v5 17/22] x86, ACPI, numa, ia64: split SLIT handling out Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 18/22] x86, mm, numa: Add early_initmem_init() stub Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 19/22] x86, mm: Parse numa info earlier Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 20/22] x86, mm: Add comments for step_size shift Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 21/22] x86, mm: Make init_mem_mapping be able to be called several times Tang Chen
2013-06-13 18:35 ` Konrad Rzeszutek Wilk
2013-06-13 22:47 ` Yinghai Lu
2013-06-14 5:08 ` Tang Chen
2013-06-13 13:03 ` [Part1 PATCH v5 22/22] x86, mm, numa: Put pagetable on local node ram for 64bit Tang Chen
2013-06-18 2:03 ` [Part1 PATCH v5 00/22] x86, ACPI, numa: Parse numa info earlier Tejun Heo
2013-06-18 5:47 ` Tang Chen
2013-06-18 17:21 ` Tejun Heo
2013-06-20 5:52 ` Tang Chen
2013-06-20 6:17 ` Tejun Heo
2013-06-21 9:19 ` Tang Chen
2013-06-21 18:25 ` Tejun Heo
2013-06-24 3:51 ` Tang Chen
2013-06-24 7:26 ` Tang Chen
2013-06-24 19:59 ` Tejun Heo
2013-06-18 17:10 ` Vasilis Liaskovitis
2013-06-18 20:19 ` Yinghai Lu
2013-06-19 10:05 ` Vasilis Liaskovitis
2013-06-20 18:42 ` Yinghai Lu
2013-06-24 9:40 ` Gu Zheng
2013-06-21 5:19 ` H. Peter Anvin
2013-06-21 6:06 ` Tang Chen
2013-06-21 6:10 ` H. Peter Anvin
2013-06-21 6:20 ` Tang Chen
2013-06-21 6:26 ` Tejun Heo
2013-06-21 20:18 ` Yinghai Lu
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