From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: Robert Richter <robert.richter-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
Cc: Robert Richter <rric-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
David Daney <david.daney-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>,
Hanjun Guo <hanjun.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] arm64: mm: Fix memmap to be initialized for the entire section
Date: Thu, 17 Nov 2016 14:25:29 +0000 [thread overview]
Message-ID: <20161117142528.GJ22855@arm.com> (raw)
In-Reply-To: <20161109195132.GZ22012-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
On Wed, Nov 09, 2016 at 08:51:32PM +0100, Robert Richter wrote:
> Thus, I don't see where my patch breaks code. Even acpi_os_ioremap()
> keeps the same behaviour as before since it still uses memblock_is_
> memory(). Could you more describe your concerns why do you think this
> patch breaks the kernel and moves the problem somewhere else? I
> believe it fixes the problem at all.
acpi_os_ioremap always ends up in __ioremap_caller, regardless of
memblock_is_memory(). __ioremap_caller then fails if pfn_valid is true.
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: mm: Fix memmap to be initialized for the entire section
Date: Thu, 17 Nov 2016 14:25:29 +0000 [thread overview]
Message-ID: <20161117142528.GJ22855@arm.com> (raw)
In-Reply-To: <20161109195132.GZ22012@rric.localdomain>
On Wed, Nov 09, 2016 at 08:51:32PM +0100, Robert Richter wrote:
> Thus, I don't see where my patch breaks code. Even acpi_os_ioremap()
> keeps the same behaviour as before since it still uses memblock_is_
> memory(). Could you more describe your concerns why do you think this
> patch breaks the kernel and moves the problem somewhere else? I
> believe it fixes the problem at all.
acpi_os_ioremap always ends up in __ioremap_caller, regardless of
memblock_is_memory(). __ioremap_caller then fails if pfn_valid is true.
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Robert Richter <robert.richter@cavium.com>
Cc: Robert Richter <rric@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
David Daney <david.daney@cavium.com>,
Hanjun Guo <hanjun.guo@linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] arm64: mm: Fix memmap to be initialized for the entire section
Date: Thu, 17 Nov 2016 14:25:29 +0000 [thread overview]
Message-ID: <20161117142528.GJ22855@arm.com> (raw)
In-Reply-To: <20161109195132.GZ22012@rric.localdomain>
On Wed, Nov 09, 2016 at 08:51:32PM +0100, Robert Richter wrote:
> Thus, I don't see where my patch breaks code. Even acpi_os_ioremap()
> keeps the same behaviour as before since it still uses memblock_is_
> memory(). Could you more describe your concerns why do you think this
> patch breaks the kernel and moves the problem somewhere else? I
> believe it fixes the problem at all.
acpi_os_ioremap always ends up in __ioremap_caller, regardless of
memblock_is_memory(). __ioremap_caller then fails if pfn_valid is true.
Will
next prev parent reply other threads:[~2016-11-17 14:25 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-06 9:52 [PATCH] arm64: mm: Fix memmap to be initialized for the entire section Robert Richter
2016-10-06 9:52 ` Robert Richter
2016-10-06 9:52 ` Robert Richter
[not found] ` <1475747527-32387-1-git-send-email-rrichter-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
2016-10-06 10:00 ` Ard Biesheuvel
2016-10-06 10:00 ` Ard Biesheuvel
2016-10-06 10:00 ` Ard Biesheuvel
[not found] ` <CAKv+Gu-oYzSn_eeqaX3QVFeQjBGkaX-Wh7+oPcQFcXv7J6GOFQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-06 16:11 ` Robert Richter
2016-10-06 16:11 ` Robert Richter
2016-10-06 16:11 ` Robert Richter
[not found] ` <20161006161114.GH22012-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-10-17 18:58 ` Robert Richter
2016-10-17 18:58 ` Robert Richter
2016-10-17 18:58 ` Robert Richter
[not found] ` <20161017185801.GT25086-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-10-27 16:01 ` Will Deacon
2016-10-27 16:01 ` Will Deacon
2016-10-27 16:01 ` Will Deacon
[not found] ` <20161027160136.GD24290-5wv7dgnIgG8@public.gmane.org>
2016-10-28 9:19 ` Robert Richter
2016-10-28 9:19 ` Robert Richter
2016-10-28 9:19 ` Robert Richter
2016-11-07 21:05 ` Will Deacon
2016-11-07 21:05 ` Will Deacon
2016-11-09 19:51 ` Robert Richter
2016-11-09 19:51 ` Robert Richter
[not found] ` <20161109195132.GZ22012-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-17 14:25 ` Will Deacon [this message]
2016-11-17 14:25 ` Will Deacon
2016-11-17 14:25 ` Will Deacon
2016-11-17 15:18 ` Robert Richter
2016-11-17 15:18 ` Robert Richter
2016-11-17 15:18 ` Robert Richter
[not found] ` <20161117151805.GJ2151-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-20 17:07 ` Ard Biesheuvel
2016-11-20 17:07 ` Ard Biesheuvel
2016-11-20 17:07 ` Ard Biesheuvel
2016-11-23 21:15 ` Robert Richter
2016-11-23 21:15 ` Robert Richter
2016-11-23 21:15 ` Robert Richter
[not found] ` <20161123211538.GH10776-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-23 21:25 ` Ard Biesheuvel
2016-11-23 21:25 ` Ard Biesheuvel
2016-11-23 21:25 ` Ard Biesheuvel
2016-11-24 13:42 ` Robert Richter
2016-11-24 13:42 ` Robert Richter
2016-11-24 13:42 ` Robert Richter
[not found] ` <20161124134238.GI10776-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-24 13:44 ` Ard Biesheuvel
2016-11-24 13:44 ` Ard Biesheuvel
2016-11-24 13:44 ` Ard Biesheuvel
2016-11-24 13:51 ` Robert Richter
2016-11-24 13:51 ` Robert Richter
[not found] ` <20161124135151.GJ10776-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-24 13:58 ` Ard Biesheuvel
2016-11-24 13:58 ` Ard Biesheuvel
2016-11-24 13:58 ` Ard Biesheuvel
2016-11-24 14:11 ` Robert Richter
2016-11-24 14:11 ` Robert Richter
2016-11-24 14:11 ` Robert Richter
2016-11-24 14:23 ` Ard Biesheuvel
2016-11-24 14:23 ` Ard Biesheuvel
2016-11-24 14:23 ` Ard Biesheuvel
2016-11-24 15:09 ` Robert Richter
2016-11-24 15:09 ` Robert Richter
[not found] ` <20161124150918.GF2213-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-24 19:26 ` Robert Richter
2016-11-24 19:26 ` Robert Richter
2016-11-24 19:26 ` Robert Richter
2016-11-24 19:42 ` Ard Biesheuvel
2016-11-24 19:42 ` Ard Biesheuvel
[not found] ` <CAKv+Gu_C_17RtAiw2U0OOzVik3G7KkwUTo5eiGK-HDo-maQ-bA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-25 11:29 ` Robert Richter
2016-11-25 11:29 ` Robert Richter
2016-11-25 11:29 ` Robert Richter
[not found] ` <20161125112914.GI2213-vWBEXY7mpu582hYKe6nXyg@public.gmane.org>
2016-11-25 12:28 ` Ard Biesheuvel
2016-11-25 12:28 ` Ard Biesheuvel
2016-11-25 12:28 ` Ard Biesheuvel
2016-11-25 17:01 ` Ard Biesheuvel
2016-11-25 17:01 ` Ard Biesheuvel
2016-11-25 17:01 ` Ard Biesheuvel
2016-10-18 10:18 ` Mark Rutland
2016-10-18 10:18 ` Mark Rutland
2016-10-18 10:18 ` Mark Rutland
2016-10-18 15:02 ` Robert Richter
2016-10-18 15:02 ` Robert Richter
2016-10-18 15:02 ` Robert Richter
2016-11-01 16:55 ` Robert Richter
2016-11-01 16:55 ` Robert Richter
2016-11-01 16:55 ` Robert Richter
2016-10-10 15:33 ` David Daney
2016-10-10 15:33 ` David Daney
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