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rcu: actually register threads that have RCU read-side critical sections

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Otherwise, grace periods are detected too early!

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-07-09 08:55:38 +02:00
parent c170aad8b0
commit ab28bd2312
5 changed files with 21 additions and 0 deletions
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5
iothread.c
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@ -18,6 +18,7 @@
#include "sysemu/iothread.h"
#include "qmp-commands.h"
#include "qemu/error-report.h"
#include "qemu/rcu.h"
typedef ObjectClass IOThreadClass;
@ -31,6 +32,8 @@ static void *iothread_run(void *opaque)
IOThread *iothread = opaque;
bool blocking;
rcu_register_thread();
qemu_mutex_lock(&iothread->init_done_lock);
iothread->thread_id = qemu_get_thread_id();
qemu_cond_signal(&iothread->init_done_cond);
@ -45,6 +48,8 @@ static void *iothread_run(void *opaque)
}
aio_context_release(iothread->ctx);
}
rcu_unregister_thread();
return NULL;
}