Re: [PATCH] PPC64: lockfix for rtas error log

[Paul Mackerras]

Linas,

> This patch moves the location of a lock in order to protect
> the contents of a buffer until it has been copied to its final
> destination. Prior to this, a race existed whereby the buffer
> could be filled even while it was being emptied.

Given that log_error() seems to be a no-op at the moment AFAICT, and
that Ben H was concerned about possible deadlocks if log_error
actually did do something, I'd like to see a resolution of (a) what
log_error should be doing and (b) whether there is in fact any
possibility of deadlock with this patch once (a) is resolved.

Thanks,
Paul.
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