[Xen-changelog] [xen master] xen/arm: call vcpu_yield on WFE trap

[patchbot@xxxxxxx]

commit 77038d0f76bccb0c75de92b2f24269300df15a44
Author:     Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
AuthorDate: Wed Jul 23 14:37:23 2014 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Mon Jul 28 13:44:18 2014 +0100

    xen/arm: call vcpu_yield on WFE trap
    
    No need to call vcpu_force_reschedule, is too expensive.
    
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
    Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/traps.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/xen/arch/arm/traps.c b/xen/arch/arm/traps.c
index 3dfabd0..76a9586 100644
--- a/xen/arch/arm/traps.c
+++ b/xen/arch/arm/traps.c
@@ -1805,7 +1805,7 @@ asmlinkage void do_trap_hypervisor(struct cpu_user_regs 
*regs)
         }
         if ( hsr.wfi_wfe.ti ) {
             /* Yield the VCPU for WFE */
-            vcpu_force_reschedule(current);
+            vcpu_yield();
         } else {
             /* Block the VCPU for WFI */
             vcpu_block_unless_event_pending(current);
--
generated by git-patchbot for /home/xen/git/xen.git#master

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