When a balloon device gets unplugged, allow the balloon handlers to be
freed.
Signed-off-by: Amit Shah <amit.s...@redhat.com>
---
balloon.c | 10 ++++++++++
balloon.h | 1 +
2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/balloon.c b/balloon.c
index f56fdc1..a2133db 100644
--- a/balloon.c
+++ b/balloon.c
@@ -52,6 +52,16 @@ int qemu_add_balloon_handler(QEMUBalloonEvent *event_func,
return 0;
}
+void qemu_remove_balloon_handler(void *opaque)
+{
+ if (balloon_opaque != opaque) {
+ return;
+ }
+ balloon_event_fn = NULL;
+ balloon_stat_fn = NULL;
+ balloon_opaque = NULL;
+}
+
static int qemu_balloon(ram_addr_t target)
{
if (!balloon_event_fn) {
diff --git a/balloon.h b/balloon.h
index 3df14e6..f59e288 100644
--- a/balloon.h
+++ b/balloon.h
@@ -22,6 +22,7 @@ typedef void (QEMUBalloonStatus)(void *opaque,
MonitorCompletion cb,
int qemu_add_balloon_handler(QEMUBalloonEvent *event_func,
QEMUBalloonStatus *stat_func, void *opaque);
+void qemu_remove_balloon_handler(void *opaque);
void monitor_print_balloon(Monitor *mon, const QObject *data);
int do_info_balloon(Monitor *mon, MonitorCompletion cb, void *opaque);
--
1.7.6
