Paul Mundt 9bbafce2ee sh: Fix occasional FPU register corruption under preempt. ...

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>

2008-03-26 19:02:47 +09:00

..

entry.S

sh: comment tidying for sh64->sh migration.

2008-01-28 13:18:58 +09:00

fpu.c

sh: Fix occasional FPU register corruption under preempt.

2008-03-26 19:02:47 +09:00

Makefile

sh: Get the mach-cayman IRQ support building.

2008-01-28 13:18:54 +09:00

probe.c

sh: Get SH-5 caches working again post-unification.

2008-02-14 14:22:12 +09:00

switchto.S

sh: comment tidying for sh64->sh migration.

2008-01-28 13:18:58 +09:00

unwind.c

sh: replace remaining __FUNCTION__ occurrences

2008-03-06 11:18:22 +09:00