LXR linux/fs/ocfs2/filecheck.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * filecheck.h
   4 *
   5 * Online file check.
   6 *
   7 * Copyright (C) 2016 SuSE.  All rights reserved.
   8 */
   9
  10
  11#ifndef FILECHECK_H
  12#define FILECHECK_H
  13
  14#include <linux/types.h>
  15#include <linux/list.h>
  16
  17
  18/* File check errno */
  19enum {
  20        OCFS2_FILECHECK_ERR_SUCCESS = 0,        /* Success */
  21        OCFS2_FILECHECK_ERR_FAILED = 1000,      /* Other failure */
  22        OCFS2_FILECHECK_ERR_INPROGRESS,         /* In progress */
  23        OCFS2_FILECHECK_ERR_READONLY,           /* Read only */
  24        OCFS2_FILECHECK_ERR_INJBD,              /* Buffer in jbd */
  25        OCFS2_FILECHECK_ERR_INVALIDINO,         /* Invalid ino */
  26        OCFS2_FILECHECK_ERR_BLOCKECC,           /* Block ecc */
  27        OCFS2_FILECHECK_ERR_BLOCKNO,            /* Block number */
  28        OCFS2_FILECHECK_ERR_VALIDFLAG,          /* Inode valid flag */
  29        OCFS2_FILECHECK_ERR_GENERATION,         /* Inode generation */
  30        OCFS2_FILECHECK_ERR_UNSUPPORTED         /* Unsupported */
  31};
  32
  33#define OCFS2_FILECHECK_ERR_START       OCFS2_FILECHECK_ERR_FAILED
  34#define OCFS2_FILECHECK_ERR_END         OCFS2_FILECHECK_ERR_UNSUPPORTED
  35
  36struct ocfs2_filecheck {
  37        struct list_head fc_head;       /* File check entry list head */
  38        spinlock_t fc_lock;
  39        unsigned int fc_max;    /* Maximum number of entry in list */
  40        unsigned int fc_size;   /* Current entry count in list */
  41        unsigned int fc_done;   /* Finished entry count in list */
  42};
  43
  44#define OCFS2_FILECHECK_MAXSIZE         100
  45#define OCFS2_FILECHECK_MINSIZE         10
  46
  47/* File check operation type */
  48enum {
  49        OCFS2_FILECHECK_TYPE_CHK = 0,   /* Check a file(inode) */
  50        OCFS2_FILECHECK_TYPE_FIX,       /* Fix a file(inode) */
  51        OCFS2_FILECHECK_TYPE_SET = 100  /* Set entry list maximum size */
  52};
  53
  54struct ocfs2_filecheck_sysfs_entry {    /* sysfs entry per partition */
  55        struct kobject fs_kobj;
  56        struct completion fs_kobj_unregister;
  57        struct ocfs2_filecheck *fs_fcheck;
  58};
  59
  60
  61int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb);
  62void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb);
  63
  64#endif  /* FILECHECK_H */
  65