Re: [PATCH 3.0-stable] sparc32: support atomic64_t

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On Wed, Apr 24, 2013 at 05:53:08PM +0200, Andreas Larsson wrote:
> Commit aea1181b0bd0a09c54546399768f359d1e198e45 upstream
> 
> [Backport to 3.0.y. Needed to compile ext4 for sparc32 since commit
> 503f4bdcc078e7abee273a85ce322de81b18a224]
> 
> There is no-one that really require atomic64_t support on sparc32.
> But several drivers fails to build without proper atomic64 support.
> And for an allyesconfig build for sparc32 this is annoying.
> 
> Include the generic atomic64_t support for sparc32.
> This has a text footprint cost:
> 
> $size vmlinux (before atomic64_t support)
>    text    data     bss     dec     hex filename
> 3578860  134260  108781 3821901  3a514d vmlinux
> 
> $size vmlinux (after atomic64_t support)
>    text    data     bss     dec     hex filename
> 3579892  130684  108781 3819357  3a475d vmlinux
> 
> text increase (3579892 - 3578860) = 1032 bytes
> 
> data decreases - but I fail to explain why!
> I have rebuild twice to check my numbers.
> 
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> Signed-off-by: Andreas Larsson <andreas@xxxxxxxxxxx>
> ---
> 
> If this is an incorrect way to submit a backport of someone elses patch
> to stable, please let me know. The Signed-off-by from Sam and David are
> for the upstream patch.

I need an ack from David before I can take this, as he normally sends
the sparc stable patches to me.

thanks,

greg k-h
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