From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 3 Mar 2017 10:51:07 +0000 (+0100)
Subject: main-loop: remove now unnecessary optimization
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=e330c118f2a5;p=qmiga%2Fqemu.git

main-loop: remove now unnecessary optimization

This optimization is not necessary anymore, because the vCPU now drops
the I/O thread lock even with TCG.  Drop it to simplify the code and
avoid the "I/O thread spun for 1000 iterations" warning.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/vl.c b/vl.c
index 1a95500ac7..0b4ed5241c 100644
--- a/vl.c
+++ b/vl.c
@@ -1888,17 +1888,14 @@ static bool main_loop_should_exit(void)
 
 static void main_loop(void)
 {
-    bool nonblocking;
-    int last_io = 0;
 #ifdef CONFIG_PROFILER
     int64_t ti;
 #endif
     do {
-        nonblocking = tcg_enabled() && last_io > 0;
 #ifdef CONFIG_PROFILER
         ti = profile_getclock();
 #endif
-        last_io = main_loop_wait(nonblocking);
+        main_loop_wait(false);
 #ifdef CONFIG_PROFILER
         dev_time += profile_getclock() - ti;
 #endif