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[Qemu-devel] [PULL 15/18] main-loop: remove now unnecessary optimization
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 15/18] main-loop: remove now unnecessary optimization |
Date: |
Tue, 14 Mar 2017 17:18:17 +0100 |
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 <address@hidden>
Reviewed-by: Edgar E. Iglesias <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
vl.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/vl.c b/vl.c
index 1a95500..0b4ed52 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
--
1.8.3.1
- [Qemu-devel] [PULL 09/18] util: Removed unneeded header from path.c, (continued)
- [Qemu-devel] [PULL 09/18] util: Removed unneeded header from path.c, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 12/18] qemu-timer: fix off-by-one, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 13/18] qemu-timer: do not include sysemu/cpus.h from util/qemu-timer.h, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 14/18] cpus: define QEMUTimerListNotifyCB for QEMU system emulation, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 16/18] icount: process QEMU_CLOCK_VIRTUAL timers in vCPU thread, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 18/18] nbd/client: fix drop_sync [CVE-2017-2630], Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 11/18] target/nios2: take BQL around interrupt check, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 10/18] scsi: mptsas: fix the wrong reading size in fetch request, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 17/18] memory: info mtree check mr range overflow, Paolo Bonzini, 2017/03/14
- [Qemu-devel] [PULL 15/18] main-loop: remove now unnecessary optimization,
Paolo Bonzini <=
- Re: [Qemu-devel] [PULL 00/18] Misc patches for QEMU 2.9 hard freeze, Peter Maydell, 2017/03/14