ceph/src/tools/cephfs/PgFiles.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2016 Red Hat
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation.  See file COPYING.
  12  *
  13  */
  14
  15 #ifndef PG_EFFECTS_H_
  16 #define PG_EFFECTS_H_
  17
  18 #include "include/cephfs/libcephfs.h"
  19 #include "osd/osd_types.h"
  20 #include <set>
  21 #include "osdc/Objecter.h"
  22
  23 /**
  24  * This utility scans the files (via an online MDS) and works out
  25  * which ones rely on named PGs.  For use when someone has
  26  * some bad/damaged PGs and wants to see which files might be
  27  * affected.
  28  */
  29 class PgFiles
  30 {
  31 private:
  32   Objecter *objecter;
  33   struct ceph_mount_info *cmount;
  34
  35   std::set<pg_t> pgs;
  36   std::set<uint64_t> pools;
  37
  38   void hit_file(std::string const &path, const struct ceph_statx &stx);
  39   void hit_dir(std::string const &path);
  40
  41
  42 public:
  43   PgFiles(Objecter *o, std::set<pg_t> pgs_);
  44   ~PgFiles();
  45
  46   int init();
  47   int scan_path(std::string const &path);
  48 };
  49
  50 #endif
  51