diff options
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/xenbus.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h index 5a8315e6d8a6..baa88bf0b9bc 100644 --- a/include/xen/xenbus.h +++ b/include/xen/xenbus.h @@ -61,6 +61,13 @@ struct xenbus_watch /* Path being watched. */ const char *node; + /* + * Called just before enqueing new event while a spinlock is held. + * The event will be discarded if this callback returns false. + */ + bool (*will_handle)(struct xenbus_watch *, + const char *path, const char *token); + /* Callback (executed in a process context with no locks held). */ void (*callback)(struct xenbus_watch *, const char *path, const char *token); |