Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / notify / fsnotify.h

diff --git a/kernel/fs/notify/fsnotify.h b/kernel/fs/notify/fsnotify.h
new file mode 100644 (file)
index 0000000..13a00be
--- /dev/null
+++ b/kernel/fs/notify/fsnotify.h
@@ -0,0 +1,60 @@
+#ifndef __FS_NOTIFY_FSNOTIFY_H_
+#define __FS_NOTIFY_FSNOTIFY_H_
+
+#include <linux/list.h>
+#include <linux/fsnotify.h>
+#include <linux/srcu.h>
+#include <linux/types.h>
+
+/* destroy all events sitting in this groups notification queue */
+extern void fsnotify_flush_notify(struct fsnotify_group *group);
+
+/* protects reads of inode and vfsmount marks list */
+extern struct srcu_struct fsnotify_mark_srcu;
+
+/* Calculate mask of events for a list of marks */
+extern u32 fsnotify_recalc_mask(struct hlist_head *head);
+
+/* compare two groups for sorting of marks lists */
+extern int fsnotify_compare_groups(struct fsnotify_group *a,
+                                  struct fsnotify_group *b);
+
+extern void fsnotify_set_inode_mark_mask_locked(struct fsnotify_mark *fsn_mark,
+                                               __u32 mask);
+/* Add mark to a proper place in mark list */
+extern int fsnotify_add_mark_list(struct hlist_head *head,
+                                 struct fsnotify_mark *mark,
+                                 int allow_dups);
+/* add a mark to an inode */
+extern int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
+                                  struct fsnotify_group *group, struct inode *inode,
+                                  int allow_dups);
+/* add a mark to a vfsmount */
+extern int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
+                                     struct fsnotify_group *group, struct vfsmount *mnt,
+                                     int allow_dups);
+
+/* vfsmount specific destruction of a mark */
+extern void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark);
+/* inode specific destruction of a mark */
+extern void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark);
+/* Destroy all marks in the given list */
+extern void fsnotify_destroy_marks(struct list_head *to_free);
+/* Find mark belonging to given group in the list of marks */
+extern struct fsnotify_mark *fsnotify_find_mark(struct hlist_head *head,
+                                               struct fsnotify_group *group);
+/* run the list of all marks associated with inode and flag them to be freed */
+extern void fsnotify_clear_marks_by_inode(struct inode *inode);
+/* run the list of all marks associated with vfsmount and flag them to be freed */
+extern void fsnotify_clear_marks_by_mount(struct vfsmount *mnt);
+/*
+ * update the dentry->d_flags of all of inode's children to indicate if inode cares
+ * about events that happen to its children.
+ */
+extern void __fsnotify_update_child_dentry_flags(struct inode *inode);
+
+/* allocate and destroy and event holder to attach events to notification/access queues */
+extern struct fsnotify_event_holder *fsnotify_alloc_event_holder(void);
+extern void fsnotify_destroy_event_holder(struct fsnotify_event_holder *holder);
+
+#endif /* __FS_NOTIFY_FSNOTIFY_H_ */