2.4.3 inotify机制的事件处理

void inotify_inode_queue_event(struct inode *inode, u32 mask, u32 cookie,
            const char *name, struct inode *n_inode)
{
struct inotify_watch *watch, *next;

if (!inotify_inode_watched(inode))
return;

mutex_lock(&inode->inotify_mutex);
list_for_each_entry_safe(watch, next, &inode->inotify_watches, i_list)
 {　//遍历节点的watch链表
u32 watch_mask = watch->mask;
if (watch_mask & mask) {　//如果watch含有事件
struct inotify_handle *ih= watch->ih;　
//得到watch的监视处理实例
mutex_lock(&ih->mutex);
if (watch_mask & IN_ONESHOT)　//表示只处理一次
remove_watch_no_event(watch, ih);//删除watch
              /*调用inotify操作函数集中的函数handle_event处理事件
ih->in_ops->handle_event(watch, watch->wd, mask, cookie,
 name, n_inode);
mutex_unlock(&ih->mutex);
}
}
mutex_unlock(&inode->inotify_mutex);
}
EXPORT_SYMBOL_GPL(inotify_inode_queue_event);