linux-kernel - Re: [PATCH 3/5] FS: Export poll_select_copy_remaining and rename poll_select_copy_remaining in compat.c so it does not pick the wrong copy.

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Message-ID: <20130911110901.GD26777@darko.cambridge.arm.com>
Date:	Wed, 11 Sep 2013 12:09:01 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Andrew Pinski <pinskia@...il.com>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	Andrew Pinski <apinski@...ium.com>
Subject: Re: [PATCH 3/5] FS: Export poll_select_copy_remaining and rename
 poll_select_copy_remaining in compat.c so it does not pick the wrong copy.

On Mon, Sep 09, 2013 at 10:32:57PM +0100, Andrew Pinski wrote:
>   The ILP32 ABI in ARM64 uses a slightly different pselect from either
>   the compat or even the native LP64 ABI.  We would want to reuse some
>   of the code path that are used as the size of the timespec is the
>   same, so this patch exports poll_select_copy_remaining from
>   fs/select.c and renames the copy in fs/compat.c to make sure that it
>   is not being used.
> 
> Signed-off-by: Andrew Pinski <apinski@...ium.com>

I think this patch has to wait until we review the ILP32 ABI for arm64.
When I looked at this some time ago I thought we can just use the native
arm64 pselect6 and ppoll. Once we agree that's not possible we can push
this patch. On its own it doesn't have much value.

-- 
Catalin
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