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authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-02-18 11:18:57 -0800
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2009-03-29 23:36:01 -0700
commit224101ed69d3fbb486868e0f6e0f9fa37302efb4 (patch)
tree46830842a99659421eeabee65d299ab4c3b59f28 /arch/x86/kernel/vmi_32.c
parentb407fc57b815b2016186220baabc76cc8264206e (diff)
downloadlinux-linaro-android-224101ed69d3fbb486868e0f6e0f9fa37302efb4.tar.gz
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>
Diffstat (limited to 'arch/x86/kernel/vmi_32.c')
-rw-r--r--arch/x86/kernel/vmi_32.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 950929c607d..55a5d6938e5 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,