s3 OneFS: Add file_id_create implementation to take advantage of snapshots

[ira/wip.git] / source3 / modules / vfs_onefs.c

diff --git a/source3/modules/vfs_onefs.c b/source3/modules/vfs_onefs.c
index 9667d86dbad6d7cbb485896736064518a5547b60..522b94399df4219bcd683bd8ffd8a1a6684616f3 100644 (file)
--- a/source3/modules/vfs_onefs.c
+++ b/source3/modules/vfs_onefs.c
@@ -194,6 +194,22 @@ static uint64_t onefs_get_alloc_size(struct vfs_handle_struct *handle,
        return result;
 }
 
+static struct file_id onefs_file_id_create(struct vfs_handle_struct *handle,
+                                            SMB_STRUCT_STAT *sbuf)
+{
+       struct file_id key;
+
+       /* the ZERO_STRUCT ensures padding doesn't break using the key as a
+        * blob */
+       ZERO_STRUCT(key);
+
+       key.devid = sbuf->st_dev;
+       key.inode = sbuf->st_ino;
+       key.extid = sbuf->st_snapid;
+
+       return key;
+}
+
 static int onefs_statvfs(vfs_handle_struct *handle, const char *path,
                         vfs_statvfs_struct *statbuf)
 {
@@ -342,6 +358,8 @@ static vfs_op_tuple onefs_ops[] = {
         SMB_VFS_LAYER_OPAQUE},
        {SMB_VFS_OP(onefs_chflags), SMB_VFS_OP_CHFLAGS,
         SMB_VFS_LAYER_TRANSPARENT},
+       {SMB_VFS_OP(onefs_file_id_create), SMB_VFS_OP_FILE_ID_CREATE,
+        SMB_VFS_LAYER_OPAQUE},
        {SMB_VFS_OP(onefs_streaminfo), SMB_VFS_OP_STREAMINFO,
         SMB_VFS_LAYER_OPAQUE},
        {SMB_VFS_OP(onefs_brl_lock_windows), SMB_VFS_OP_BRL_LOCK_WINDOWS,