1 files changed, 8 insertions, 0 deletions

diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h
index 066280a07fa8..0814271bb9ba 100644
--- a/fs/nfs/objlayout/objlayout.h
+++ b/fs/nfs/objlayout/objlayout.h
@@ -56,6 +56,14 @@ extern int objio_alloc_lseg(struct pnfs_layout_segment **outp,
 extern void objio_free_lseg(struct pnfs_layout_segment *lseg);
 
 /*
+ * callback API
+ */
+extern int objlayout_get_deviceinfo(struct pnfs_layout_hdr *pnfslay,
+        struct nfs4_deviceid *d_id, struct pnfs_osd_deviceaddr **deviceaddr,
+        gfp_t gfp_flags);
+extern void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr);
+
+/*
  * exported generic objects function vectors
  */
 extern struct pnfs_layout_segment *objlayout_alloc_lseg(