root/fs/ocfs2/filecheck.h

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