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[Qemu-devel] [PATCH v2 15/20] kvm: Reorder error handling of KVM_RUN


From: Jan Kiszka
Subject: [Qemu-devel] [PATCH v2 15/20] kvm: Reorder error handling of KVM_RUN
Date: Tue, 15 Mar 2011 12:26:26 +0100

Test for general errors first as this is the slower path.

Signed-off-by: Jan Kiszka <address@hidden>
---
 kvm-all.c |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/kvm-all.c b/kvm-all.c
index 99abe82..59276cd 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -939,13 +939,12 @@ int kvm_cpu_exec(CPUState *env)
 
         kvm_flush_coalesced_mmio_buffer();
 
-        if (run_ret == -EINTR || run_ret == -EAGAIN) {
-            DPRINTF("io window exit\n");
-            ret = 0;
-            break;
-        }
-
         if (run_ret < 0) {
+            if (run_ret == -EINTR || run_ret == -EAGAIN) {
+                DPRINTF("io window exit\n");
+                ret = 0;
+                break;
+            }
             DPRINTF("kvm run failed %s\n", strerror(-run_ret));
             abort();
         }
-- 
1.7.1




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