/* SPDX-License-Identifier: GPL-2.0-only */

  /* -*- mode: c; c-basic-offset: 8; -*-
   * vim: noexpandtab sw=8 ts=8 sts=0:
   *
   * filecheck.h
   *
   * Online file check.
   *
   * Copyright (C) 2016 SuSE.  All rights reserved.

   */
  
  
  #ifndef FILECHECK_H
  #define FILECHECK_H
  
  #include <linux/types.h>
  #include <linux/list.h>
  
  
  /* File check errno */
  enum {
  	OCFS2_FILECHECK_ERR_SUCCESS = 0,	/* Success */
  	OCFS2_FILECHECK_ERR_FAILED = 1000,	/* Other failure */
  	OCFS2_FILECHECK_ERR_INPROGRESS,		/* In progress */
  	OCFS2_FILECHECK_ERR_READONLY,		/* Read only */
  	OCFS2_FILECHECK_ERR_INJBD,		/* Buffer in jbd */
  	OCFS2_FILECHECK_ERR_INVALIDINO,		/* Invalid ino */
  	OCFS2_FILECHECK_ERR_BLOCKECC,		/* Block ecc */
  	OCFS2_FILECHECK_ERR_BLOCKNO,		/* Block number */
  	OCFS2_FILECHECK_ERR_VALIDFLAG,		/* Inode valid flag */
  	OCFS2_FILECHECK_ERR_GENERATION,		/* Inode generation */
  	OCFS2_FILECHECK_ERR_UNSUPPORTED		/* Unsupported */
  };
  
  #define OCFS2_FILECHECK_ERR_START	OCFS2_FILECHECK_ERR_FAILED
  #define OCFS2_FILECHECK_ERR_END		OCFS2_FILECHECK_ERR_UNSUPPORTED

  struct ocfs2_filecheck {
  	struct list_head fc_head;	/* File check entry list head */
  	spinlock_t fc_lock;
  	unsigned int fc_max;	/* Maximum number of entry in list */
  	unsigned int fc_size;	/* Current entry count in list */
  	unsigned int fc_done;	/* Finished entry count in list */
  };

  #define OCFS2_FILECHECK_MAXSIZE		100
  #define OCFS2_FILECHECK_MINSIZE		10
  
  /* File check operation type */
  enum {
  	OCFS2_FILECHECK_TYPE_CHK = 0,	/* Check a file(inode) */
  	OCFS2_FILECHECK_TYPE_FIX,	/* Fix a file(inode) */
  	OCFS2_FILECHECK_TYPE_SET = 100	/* Set entry list maximum size */
  };

  struct ocfs2_filecheck_sysfs_entry {	/* sysfs entry per partition */
  	struct kobject fs_kobj;
  	struct completion fs_kobj_unregister;
  	struct ocfs2_filecheck *fs_fcheck;
  };
  
  
  int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb);
  void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb);

  
  #endif  /* FILECHECK_H */