Re: alpha: potential race around hae_cache in RESTORE_ALL

[Al Viro]

On Sat, Sep 25, 2010 at 08:18:36PM +0100, Al Viro wrote:
> Agreed.  There are only two places that need change (return to kernel path
> in ret_from_syscall and kernel_thread essentially jumping to the same path),
> so I'll just add
> ret_to_kernel:
>         lda     $16, 7
>         call_pal PAL_swpipl
> 	br	restore_all
> and make these two places go to ret_to_kernel instead of restore_all.

BTW, am I right assuming that HAE modifications is UP-only thing?  It would
be obviously b0rken on any SMP box, since alpha_mv is not per-CPU thing...
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