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[Qemu-devel] [PATCH v5 04/13] cpus: Wrap mutex used to protect CPU work
From: |
Alex Bennée |
Subject: |
[Qemu-devel] [PATCH v5 04/13] cpus: Wrap mutex used to protect CPU work |
Date: |
Tue, 2 Aug 2016 18:27:35 +0100 |
From: Sergey Fedorov <address@hidden>
This will be useful to enable CPU work on user mode emulation.
Signed-off-by: Sergey Fedorov <address@hidden>
Signed-off-by: Sergey Fedorov <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Alex Bennée <address@hidden>
---
cpus.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/cpus.c b/cpus.c
index 04687c8..f80ed2a 100644
--- a/cpus.c
+++ b/cpus.c
@@ -910,6 +910,11 @@ void qemu_init_cpu_loop(void)
qemu_thread_get_self(&io_thread);
}
+static QemuMutex *qemu_get_cpu_work_mutex(void)
+{
+ return &qemu_global_mutex;
+}
+
static void queue_work_on_cpu(CPUState *cpu, struct qemu_work_item *wi)
{
qemu_mutex_lock(&cpu->work_mutex);
@@ -943,7 +948,7 @@ void run_on_cpu(CPUState *cpu, run_on_cpu_func func, void
*data)
while (!atomic_mb_read(&wi.done)) {
CPUState *self_cpu = current_cpu;
- qemu_cond_wait(&qemu_work_cond, &qemu_global_mutex);
+ qemu_cond_wait(&qemu_work_cond, qemu_get_cpu_work_mutex());
current_cpu = self_cpu;
}
}
--
2.7.4
- [Qemu-devel] [PATCH v5 00/13] cpu-exec: Safe work in quiescent state, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 01/13] atomic: introduce atomic_dec_fetch., Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 05/13] cpus: Rename flush_queued_work(), Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 08/13] linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick(), Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 02/13] cpus: pass CPUState to run_on_cpu helpers, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 04/13] cpus: Wrap mutex used to protect CPU work,
Alex Bennée <=
- [Qemu-devel] [PATCH v5 03/13] cpus: Move common code out of {async_, }run_on_cpu(), Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 07/13] linux-user: Rework exclusive operation mechanism, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 06/13] linux-user: Use QemuMutex and QemuCond, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 12/13] tcg: Make tb_flush() thread safe, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 10/13] bsd-user: Support CPU work queue, Alex Bennée, 2016/08/02
- [Qemu-devel] [PATCH v5 13/13] cpu-exec: replace cpu->queued_work with GArray, Alex Bennée, 2016/08/02