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[PATCH v2 6/9] cpus: Remove the mutex parameter from do_run_on_cpu()
From: |
Peter Xu |
Subject: |
[PATCH v2 6/9] cpus: Remove the mutex parameter from do_run_on_cpu() |
Date: |
Fri, 23 Jul 2021 15:34:41 -0400 |
We must use the BQL for do_run_on_cpu() without much choice, it means the
parameter is helpless. Remove it. Meanwhile use the newly introduced
qemu_cond_wait_iothread() in do_run_on_cpu().
Signed-off-by: Peter Xu <peterx@redhat.com>
---
softmmu/cpus.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index 94c2804192..9131f77f87 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -383,8 +383,7 @@ void qemu_init_cpu_loop(void)
}
static void
-do_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data,
- QemuMutex *mutex)
+do_run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data)
{
struct qemu_work_item wi;
@@ -403,14 +402,14 @@ do_run_on_cpu(CPUState *cpu, run_on_cpu_func func,
run_on_cpu_data data,
while (!qatomic_mb_read(&wi.done)) {
CPUState *self_cpu = current_cpu;
- qemu_cond_wait(&qemu_work_cond, mutex);
+ qemu_cond_wait_iothread(&qemu_work_cond);
current_cpu = self_cpu;
}
}
void run_on_cpu(CPUState *cpu, run_on_cpu_func func, run_on_cpu_data data)
{
- do_run_on_cpu(cpu, func, data, &qemu_global_mutex);
+ do_run_on_cpu(cpu, func, data);
}
static void qemu_cpu_stop(CPUState *cpu, bool exit)
--
2.31.1
- [PATCH v2 4/9] memory: Don't do topology update in memory finalize(), (continued)
- [PATCH v2 5/9] cpus: Use qemu_cond_wait_iothread() where proper, Peter Xu, 2021/07/23
- [PATCH v2 8/9] memory: Assert on no ongoing memory transaction before release BQL, Peter Xu, 2021/07/23
- [PATCH v2 9/9] memory: Delay the transaction pop() until commit completed, Peter Xu, 2021/07/23
- [PATCH v2 6/9] cpus: Remove the mutex parameter from do_run_on_cpu(),
Peter Xu <=
- [PATCH v2 7/9] cpus: Introduce qemu_mutex_unlock_iothread_prepare(), Peter Xu, 2021/07/23
Re: [PATCH v2 0/9] memory: Sanity checks memory transaction when releasing BQL, Peter Xu, 2021/07/23
Re: [PATCH v2 0/9] memory: Sanity checks memory transaction when releasing BQL, David Hildenbrand, 2021/07/27