diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2008-03-26 06:02:47 -0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-03-26 06:02:47 -0400 |
| commit | 9bbafce2eec190ef7e44b0eb1095ba17ce6ad3af (patch) | |
| tree | 8deae79efc43d39763bdba8ca9b670e6a1782859 /include/asm-sh/processor.h | |
| parent | 05dda977f2574c3341abef9b74c27d2b362e1e3a (diff) | |
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>
Diffstat (limited to 'include/asm-sh/processor.h')
| -rw-r--r-- | include/asm-sh/processor.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 19fe47c1ca17..ec707b98e5b9 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h | |||
| @@ -2,7 +2,6 @@ | |||
| 2 | #define __ASM_SH_PROCESSOR_H | 2 | #define __ASM_SH_PROCESSOR_H |
| 3 | 3 | ||
| 4 | #include <asm/cpu-features.h> | 4 | #include <asm/cpu-features.h> |
| 5 | #include <asm/fpu.h> | ||
| 6 | 5 | ||
| 7 | #ifndef __ASSEMBLY__ | 6 | #ifndef __ASSEMBLY__ |
| 8 | /* | 7 | /* |