diff options
Diffstat (limited to 'fs/notify/notification.c')
| -rw-r--r-- | fs/notify/notification.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/fs/notify/notification.c b/fs/notify/notification.c index 001cfe7d2e4e..32f45543b9c6 100644 --- a/fs/notify/notification.c +++ b/fs/notify/notification.c @@ -68,16 +68,22 @@ void fsnotify_destroy_event(struct fsnotify_group *group, } /* - * Add an event to the group notification queue. The group can later pull this - * event off the queue to deal with. The function returns 0 if the event was - * added to the queue, 1 if the event was merged with some other queued event, + * Try to add an event to the notification queue. + * The group can later pull this event off the queue to deal with. + * The group can use the @merge hook to merge the event with a queued event. + * The group can use the @insert hook to insert the event into hash table. + * The function returns: + * 0 if the event was added to a queue + * 1 if the event was merged with some other queued event * 2 if the event was not queued - either the queue of events has overflown - * or the group is shutting down. + * or the group is shutting down. */ int fsnotify_add_event(struct fsnotify_group *group, struct fsnotify_event *event, - int (*merge)(struct list_head *, - struct fsnotify_event *)) + int (*merge)(struct fsnotify_group *, + struct fsnotify_event *), + void (*insert)(struct fsnotify_group *, + struct fsnotify_event *)) { int ret = 0; struct list_head *list = &group->notification_list; @@ -104,7 +110,7 @@ int fsnotify_add_event(struct fsnotify_group *group, } if (!list_empty(list) && merge) { - ret = merge(list, event); + ret = merge(group, event); if (ret) { spin_unlock(&group->notification_lock); return ret; @@ -114,6 +120,8 @@ int fsnotify_add_event(struct fsnotify_group *group, queue: group->q_len++; list_add_tail(&event->list, list); + if (insert) + insert(group, event); spin_unlock(&group->notification_lock); wake_up(&group->notification_waitq); |