diff options
Diffstat (limited to 'arch/mips/kernel/signal-common.h')
| -rw-r--r-- | arch/mips/kernel/signal-common.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h index 297dfcb9752..c0faabd5201 100644 --- a/arch/mips/kernel/signal-common.h +++ b/arch/mips/kernel/signal-common.h @@ -34,4 +34,13 @@ extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall); /* Check and clear pending FPU exceptions in saved CSR */ extern int fpcsr_pending(unsigned int __user *fpcsr); +/* Make sure we will not lose FPU ownership */ +#ifdef CONFIG_PREEMPT +#define lock_fpu_owner() preempt_disable() +#define unlock_fpu_owner() preempt_enable() +#else +#define lock_fpu_owner() pagefault_disable() +#define unlock_fpu_owner() pagefault_enable() +#endif + #endif /* __SIGNAL_COMMON_H */ |