From: Will Deacon <will.deacon@arm.com>
To: Andy Lutomirski <luto@amacapital.net>
Cc: "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
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Subject: Re: [PATCH v2 09/10] arm64,ia64,ppc,s390,sh,tile,um,x86,mm: Remove default gate area
Date: Tue, 1 Jul 2014 10:23:46 +0100 [thread overview]
Message-ID: <20140701092345.GH28164@arm.com> (raw)
In-Reply-To: <e1656ab2adfd1891f62610abe3e85ad992ee0cbf.1404164803.git.luto@amacapital.net>
On Mon, Jun 30, 2014 at 10:53:20PM +0100, Andy Lutomirski wrote:
> The core mm code will provide a default gate area based on
> FIXADDR_USER_START and FIXADDR_USER_END if
> !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
>
> This default is only useful for ia64. arm64, ppc, s390, sh, tile,
> 64-bit UML, and x86_32 have their own code just to disable it. arm,
> 32-bit UML, and x86_64 have gate areas, but they have their own
> implementations.
>
> This gets rid of the default and moves the code into ia64.
>
> This should save some code on architectures without a gate area: it's
> now possible to inline the gate_area functions in the default case.
For the arm64 bit:
Acked-by: Will Deacon <will.deacon@arm.com>
Will
prev parent reply other threads:[~2014-07-01 9:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1404164803.git.luto@amacapital.net>
2014-06-30 21:53 ` [PATCH v2 09/10] arm64, ia64, ppc, s390, sh, tile, um, x86, mm: Remove default gate area Andy Lutomirski
2014-07-01 9:23 ` Will Deacon [this message]
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