btrfs-progs: move ulist.[ch] to kernel-shared

The implementation of ulist_* is same for kernel and userspace, without
dependencies, so we can keep it separately for code sync.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/backref.h b/backref.h
index 3d2ed458..b68c5047 100644
--- a/backref.h
+++ b/backref.h
@@ -19,7 +19,7 @@
 #ifndef __BTRFS_BACKREF_H__
 #define __BTRFS_BACKREF_H__
 
-#include "ulist.h"
+#include "kernel-shared/ulist.h"
 #include "extent_io.h"
 
 struct inode_fs_paths {