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cpus: use coroutine TLS macros for iothread_locked 

qemu_mutex_iothread_locked() may be used from coroutines. Standard
__thread variables cannot be used by coroutines. Use the coroutine TLS
macros instead.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220222140150.27240-5-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2022-02-22 14:01:50 +00:00 committed by Kevin Wolf
parent 17c78154b0
commit d5d2b15ecf
1 changed files with 5 additions and 4 deletions
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9
softmmu/cpus.c
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@ -25,6 +25,7 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "monitor/monitor.h"
#include "qemu/coroutine-tls.h"
#include "qapi/error.h"
#include "qapi/qapi-commands-machine.h"
#include "qapi/qapi-commands-misc.h"
@ -473,11 +474,11 @@ bool qemu_in_vcpu_thread(void)
return current_cpu && qemu_cpu_is_self(current_cpu);
}
static __thread bool iothread_locked = false;
QEMU_DEFINE_STATIC_CO_TLS(bool, iothread_locked)
bool qemu_mutex_iothread_locked(void)
{
return iothread_locked;
return get_iothread_locked();
}
/*
@ -490,13 +491,13 @@ void qemu_mutex_lock_iothread_impl(const char *file, int line)
g_assert(!qemu_mutex_iothread_locked());
bql_lock(&qemu_global_mutex, file, line);
iothread_locked = true;
set_iothread_locked(true);
}
void qemu_mutex_unlock_iothread(void)
{
g_assert(qemu_mutex_iothread_locked());
iothread_locked = false;
set_iothread_locked(false);
qemu_mutex_unlock(&qemu_global_mutex);
}