[PATCH][MIPS] Do not save variables in "hi" or "lo" across system calls

[Mike Frysinger]

On Friday 25 September 2009 18:48:39 Daniel Jacobowitz wrote:
> The kernel does not save these registers across system calls.  GCC 4.4
> has gotten more agressive about using them for temporary variables, so
> this shows up as intermittent crashes if you use a recent compiler.

merge, thanks

btw, git-am will automatically trim anything in leading brackets, so you 
shouldnt put stuff you want saved into them.  i.e. the subject/commit line 
should be:
mips: ........
and not:
[MIPS] .......
-mike
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