[Xen-devel] [PATCH 2/3] arm/xen: add stub is_preemptible_hypercall()

[David Vrabel <david.vrabel@xxxxxxxxxx>]

From: David Vrabel <david.vrabel@xxxxxxxxxx>

is_preemptible_hypercall() may be called from an upcall to determine
if the interrupted task was in a preemptible hypercall.

Provide a stub implementation that always returns false.

Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
---
 arch/arm/include/asm/xen/hypercall.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/xen/hypercall.h 
b/arch/arm/include/asm/xen/hypercall.h
index 7704e28..4b988fe 100644
--- a/arch/arm/include/asm/xen/hypercall.h
+++ b/arch/arm/include/asm/xen/hypercall.h
@@ -68,4 +68,12 @@ HYPERVISOR_multicall(void *call_list, int nr_calls)
 {
        BUG();
 }
+
+#ifndef CONFIG_PREEMPT
+static inline bool is_preemptible_hypercall(struct pt_regs *regs)
+{
+       return false;
+}
+#endif
+
 #endif /* _ASM_ARM_XEN_HYPERCALL_H */
-- 
1.7.2.5


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