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qemu
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balloon: Disassociate handlers from balloon device on unplug 

When a balloon device gets unplugged, allow the balloon handlers to be
freed.

Reported-by: Shaolong Hu <shu@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Amit Shah 2011-09-09 14:30:39 +05:30 committed by Anthony Liguori
parent e89720b116
commit 8a7d552cb3
2 changed files with 11 additions and 0 deletions
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10
balloon.c
View File

@ -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) {

1
balloon.h
View File

@ -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);