CIFS: Add SMB2 support for set_file_size

[deliverable/linux.git] / fs / cifs / smb2inode.c

diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 1921c9c87ccdd9438d910906043397b59b1261bd..2905830922936c41ab86b16c0f3827b2bfcd9402 100644 (file)
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -82,6 +82,10 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
                tmprc = SMB2_set_hardlink(xid, tcon, persistent_fid,
                                          volatile_fid, (__le16 *)data);
                break;
+       case SMB2_OP_SET_EOF:
+               tmprc = SMB2_set_eof(xid, tcon, persistent_fid, volatile_fid,
+                                    current->tgid, (__le64 *)data);
+               break;
        default:
                cERROR(1, "Invalid command");
                break;
@@ -217,3 +221,14 @@ smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
        return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
                                  FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK);
 }
+
+int
+smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
+                  const char *full_path, __u64 size,
+                  struct cifs_sb_info *cifs_sb, bool set_alloc)
+{
+       __le64 eof = cpu_to_le64(size);
+       return smb2_open_op_close(xid, tcon, cifs_sb, full_path,
+                                 FILE_WRITE_DATA, FILE_OPEN, 0, 0, &eof,
+                                 SMB2_OP_SET_EOF);
+}