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* sh: Fix occasional FPU register corruption under preempt.Paul Mundt2008-03-261-0/+1
| | | | | | | | | | | Presently with preempt enabled there's the possibility to be preempted after the TIF_USEDFPU test and the register save, leading to bogus state post-__switch_to(). Use an explicit preempt_disable()/enable() pair around unlazy_fpu()/clear_fpu() to avoid this. Follows the x86 change. Reported-by: Takuo Koguchi <takuo.koguchi.sw@hitachi.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Share the ELF dump_task interfaces.Paul Mundt2008-01-281-0/+31
Signed-off-by: Paul Mundt <lethal@linux-sh.org>