Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull more vfs updates from Al Viro:
 "In this pile:

   - autofs-namespace series
   - dedupe stuff
   - more struct path constification"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
  ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features
  ocfs2: charge quota for reflinked blocks
  ocfs2: fix bad pointer cast
  ocfs2: always unlock when completing dio writes
  ocfs2: don't eat io errors during _dio_end_io_write
  ocfs2: budget for extent tree splits when adding refcount flag
  ocfs2: prohibit refcounted swapfiles
  ocfs2: add newlines to some error messages
  ocfs2: convert inode refcount test to a helper
  simple_write_end(): don't zero in short copy into uptodate
  exofs: don't mess with simple_write_{begin,end}
  9p: saner ->write_end() on failing copy into non-uptodate page
  fix gfs2_stuffed_write_end() on short copies
  fix ceph_write_end()
  nfs_write_end(): fix handling of short copies
  vfs: refactor clone/dedupe_file_range common functions
  fs: try to clone files first in vfs_copy_file_range
  vfs: misc struct path constification
  namespace.c: constify struct path passed to a bunch of primitives
  quota: constify struct path in quota_on
  ...

kernel/audit.c

@@ -1893,7 +1893,7 @@ void audit_copy_inode(struct audit_names *name, const struct dentry *dentry,
  * @call_panic: optional pointer to int that will be updated if secid fails
  */
 void audit_log_name(struct audit_context *context, struct audit_names *n,
-		    struct path *path, int record_num, int *call_panic)
+		    const struct path *path, int record_num, int *call_panic)
 {
 	struct audit_buffer *ab;
 	ab = audit_log_start(context, GFP_KERNEL, AUDIT_PATH);
@@ -2081,7 +2081,7 @@ EXPORT_SYMBOL(audit_log_task_info);
  * @operation: specific link operation
  * @link: the path that triggered the restriction
  */
-void audit_log_link_denied(const char *operation, struct path *link)
+void audit_log_link_denied(const char *operation, const struct path *link)
 {
 	struct audit_buffer *ab;
 	struct audit_names *name;

kernel/audit.h

@@ -212,7 +212,7 @@ extern void audit_copy_inode(struct audit_names *name,
 extern void audit_log_cap(struct audit_buffer *ab, char *prefix,
 			  kernel_cap_t *cap);
 extern void audit_log_name(struct audit_context *context,
-			   struct audit_names *n, struct path *path,
+			   struct audit_names *n, const struct path *path,
 			   int record_num, int *call_panic);
 
 extern int audit_pid;

kernel/audit_fsnotify.c

@@ -74,7 +74,7 @@ int audit_mark_compare(struct audit_fsnotify_mark *mark, unsigned long ino, dev_
 }
 
 static void audit_update_mark(struct audit_fsnotify_mark *audit_mark,
-			     struct inode *inode)
+			     const struct inode *inode)
 {
 	audit_mark->dev = inode ? inode->i_sb->s_dev : AUDIT_DEV_UNSET;
 	audit_mark->ino = inode ? inode->i_ino : AUDIT_INO_UNSET;
@@ -167,11 +167,11 @@ static int audit_mark_handle_event(struct fsnotify_group *group,
 				    struct inode *to_tell,
 				    struct fsnotify_mark *inode_mark,
 				    struct fsnotify_mark *vfsmount_mark,
-				    u32 mask, void *data, int data_type,
+				    u32 mask, const void *data, int data_type,
 				    const unsigned char *dname, u32 cookie)
 {
 	struct audit_fsnotify_mark *audit_mark;
-	struct inode *inode = NULL;
+	const struct inode *inode = NULL;
 
 	audit_mark = container_of(inode_mark, struct audit_fsnotify_mark, mark);
 
@@ -179,10 +179,10 @@ static int audit_mark_handle_event(struct fsnotify_group *group,
 
 	switch (data_type) {
 	case (FSNOTIFY_EVENT_PATH):
-		inode = ((struct path *)data)->dentry->d_inode;
+		inode = ((const struct path *)data)->dentry->d_inode;
 		break;
 	case (FSNOTIFY_EVENT_INODE):
-		inode = (struct inode *)data;
+		inode = (const struct inode *)data;
 		break;
 	default:
 		BUG();

kernel/audit_tree.c

@@ -947,7 +947,7 @@ static int audit_tree_handle_event(struct fsnotify_group *group,
 				   struct inode *to_tell,
 				   struct fsnotify_mark *inode_mark,
 				   struct fsnotify_mark *vfsmount_mark,
-				   u32 mask, void *data, int data_type,
+				   u32 mask, const void *data, int data_type,
 				   const unsigned char *file_name, u32 cookie)
 {
 	return 0;

kernel/audit_watch.c

@@ -471,10 +471,10 @@ static int audit_watch_handle_event(struct fsnotify_group *group,
 				    struct inode *to_tell,
 				    struct fsnotify_mark *inode_mark,
 				    struct fsnotify_mark *vfsmount_mark,
-				    u32 mask, void *data, int data_type,
+				    u32 mask, const void *data, int data_type,
 				    const unsigned char *dname, u32 cookie)
 {
-	struct inode *inode;
+	const struct inode *inode;
 	struct audit_parent *parent;
 
 	parent = container_of(inode_mark, struct audit_parent, mark);
@@ -483,10 +483,10 @@ static int audit_watch_handle_event(struct fsnotify_group *group,
 
 	switch (data_type) {
 	case (FSNOTIFY_EVENT_PATH):
-		inode = d_backing_inode(((struct path *)data)->dentry);
+		inode = d_backing_inode(((const struct path *)data)->dentry);
 		break;
 	case (FSNOTIFY_EVENT_INODE):
-		inode = (struct inode *)data;
+		inode = (const struct inode *)data;
 		break;
 	default:
 		BUG();