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-rw-r--r--fs/inotify_user.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/inotify_user.c b/fs/inotify_user.c
index 5e009331c01f..c509a817068f 100644
--- a/fs/inotify_user.c
+++ b/fs/inotify_user.c
@@ -248,6 +248,19 @@ inotify_dev_get_event(struct inotify_device *dev)
}
/*
+ * inotify_dev_get_last_event - return the last event in the given dev's queue
+ *
+ * Caller must hold dev->ev_mutex.
+ */
+static inline struct inotify_kernel_event *
+inotify_dev_get_last_event(struct inotify_device *dev)
+{
+ if (list_empty(&dev->events))
+ return NULL;
+ return list_entry(dev->events.prev, struct inotify_kernel_event, list);
+}
+
+/*
* inotify_dev_queue_event - event handler registered with core inotify, adds
* a new event to the given device
*
@@ -273,7 +286,7 @@ static void inotify_dev_queue_event(struct inotify_watch *w, u32 wd, u32 mask,
put_inotify_watch(w); /* final put */
/* coalescing: drop this event if it is a dupe of the previous */
- last = inotify_dev_get_event(dev);
+ last = inotify_dev_get_last_event(dev);
if (last && last->event.mask == mask && last->event.wd == wd &&
last->event.cookie == cookie) {
const char *lastname = last->name;