qsp: track BQL callers explicitly
The BQL is acquired via qemu_mutex_lock_iothread(), which makes
the profiler assign the associated wait time (i.e. most of
BQL wait time) entirely to that function. This loses the original
call site information, which does not help diagnose BQL contention.
Fix it by tracking the callers explicitly.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/stubs/iothread-lock.c b/stubs/iothread-lock.c
index 9b6db2e..eb745d7 100644
--- a/stubs/iothread-lock.c
+++ b/stubs/iothread-lock.c
@@ -7,7 +7,7 @@
return true;
}
-void qemu_mutex_lock_iothread(void)
+void qemu_mutex_lock_iothread_impl(const char *file, int line)
{
}
