From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] Prohibit ioremap() on kernel managed RAM
Date: Wed, 5 May 2010 17:30:12 +0100 [thread overview]
Message-ID: <20100505163012.GA17678@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20100505162345.GB3169@mvista.com>
On Wed, May 05, 2010 at 12:23:45PM -0400, George G. Davis wrote:
> So could we similarly we relax this "Prohibit ioremap() on kernel managed
> RAM" change for reserved pages? Like so:
>
> /*
> * Don't allow RAM to be mapped - this causes problems with ARMv6+
> */
> if (WARN_ON(pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn)))
> return NULL;
>
Only once the rest of the solution gets implemented; making this change
on its own doesn't mean very much or have very much effect.
next prev parent reply other threads:[~2010-05-05 16:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-23 14:40 [RFC] Prohibit ioremap() on kernel managed RAM Russell King
2010-04-30 16:33 ` George G. Davis
2010-04-30 16:38 ` Catalin Marinas
2010-05-01 6:24 ` Shilimkar, Santosh
2010-05-01 9:19 ` Russell King - ARM Linux
2010-05-03 15:59 ` George G. Davis
2010-05-04 15:29 ` Catalin Marinas
2010-05-05 16:23 ` George G. Davis
2010-05-05 16:30 ` Russell King - ARM Linux [this message]
2010-05-05 16:33 ` George G. Davis
2010-04-30 18:19 ` Russell King - ARM Linux
2010-04-30 22:30 ` George G. Davis
-- strict thread matches above, loose matches on Subject: below --
2010-04-08 9:48 Russell King - ARM Linux
2010-04-23 14:15 ` Catalin Marinas
2010-04-23 14:27 ` Shilimkar, Santosh
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