Pull error-inject into release branch

[sfrench/cifs-2.6.git] / arch / mips / kernel / signal-common.h

diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index fdbdbdc65b543b6333610afcdf0f68d318b1151e..c0faabd520103dec45ddce73aefaf8e27f775d35 100644 (file)
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,4 +31,16 @@ extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
  */
 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 */