x86/paravirt: finish change from lazy cpu to context switch start/end

Impact: fix lazy context switch API

Pass the previous and next tasks into the context switch start
end calls, so that the called functions can properly access the
task state (esp in end_context_switch, in which the next task
is not yet completely current).

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

1 files changed, 6 insertions, 6 deletions

diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 950929c607d3..55a5d6938e5e 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -467,16 +467,16 @@ vmi_startup_ipi_hook(int phys_apicid, unsigned long start_eip,
 }
 #endif
 
-static void vmi_enter_lazy_cpu(void)
+static void vmi_start_context_switch(struct task_struct *prev)
 {
-        paravirt_enter_lazy_cpu();
+        paravirt_start_context_switch(prev);
         vmi_ops.set_lazy_mode(2);
 }
 
-static void vmi_leave_lazy_cpu(void)
+static void vmi_end_context_switch(struct task_struct *next)
 {
         vmi_ops.set_lazy_mode(0);
-        paravirt_leave_lazy_cpu();
+        paravirt_end_context_switch(next);
 }
 
 static void vmi_enter_lazy_mmu(void)
@@ -722,9 +722,9 @@ static inline int __init activate_vmi(void)
         para_fill(pv_cpu_ops.set_iopl_mask, SetIOPLMask);
         para_fill(pv_cpu_ops.io_delay, IODelay);
 
-        para_wrap(pv_cpu_ops.lazy_mode.enter, vmi_enter_lazy_cpu,
+        para_wrap(pv_cpu_ops.start_context_switch, vmi_start_context_switch,
                   set_lazy_mode, SetLazyMode);
-        para_wrap(pv_cpu_ops.lazy_mode.leave, vmi_leave_lazy_cpu,
+        para_wrap(pv_cpu_ops.end_context_switch, vmi_end_context_switch,
                   set_lazy_mode, SetLazyMode);
 
         para_wrap(pv_mmu_ops.lazy_mode.enter, vmi_enter_lazy_mmu,