[linux-2.6-block.git] / fs / ocfs2 / filecheck.h

/* -*- 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.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, version 2.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */


#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 */
Commit	Line	Data
a860f6eb GH	1	/* -- mode: c; c-basic-offset: 8; --
	2	* vim: noexpandtab sw=8 ts=8 sts=0:
	3	*
	4	* filecheck.h
	5	*
	6	* Online file check.
	7	*
	8	* Copyright (C) 2016 SuSE. All rights reserved.
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public
	12	* License as published by the Free Software Foundation, version 2.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*/
	19
	20
	21	#ifndef FILECHECK_H
	22	#define FILECHECK_H
	23
	24	#include <linux/types.h>
	25	#include <linux/list.h>
	26
	27
	28	/* File check errno */
	29	enum {
	30	OCFS2_FILECHECK_ERR_SUCCESS = 0, /* Success */
	31	OCFS2_FILECHECK_ERR_FAILED = 1000, /* Other failure */
	32	OCFS2_FILECHECK_ERR_INPROGRESS, /* In progress */
	33	OCFS2_FILECHECK_ERR_READONLY, /* Read only */
	34	OCFS2_FILECHECK_ERR_INJBD, /* Buffer in jbd */
	35	OCFS2_FILECHECK_ERR_INVALIDINO, /* Invalid ino */
	36	OCFS2_FILECHECK_ERR_BLOCKECC, /* Block ecc */
	37	OCFS2_FILECHECK_ERR_BLOCKNO, /* Block number */
	38	OCFS2_FILECHECK_ERR_VALIDFLAG, /* Inode valid flag */
	39	OCFS2_FILECHECK_ERR_GENERATION, /* Inode generation */
	40	OCFS2_FILECHECK_ERR_UNSUPPORTED /* Unsupported */
	41	};
	42
	43	#define OCFS2_FILECHECK_ERR_START OCFS2_FILECHECK_ERR_FAILED
	44	#define OCFS2_FILECHECK_ERR_END OCFS2_FILECHECK_ERR_UNSUPPORTED
	45
5ac94386 GH	46	struct ocfs2_filecheck {
	47	struct list_head fc_head; /* File check entry list head */
	48	spinlock_t fc_lock;
	49	unsigned int fc_max; /* Maximum number of entry in list */
	50	unsigned int fc_size; /* Current entry count in list */
	51	unsigned int fc_done; /* Finished entry count in list */
	52	};
	53
5ac94386 GH	54	#define OCFS2_FILECHECK_MAXSIZE 100
	55	#define OCFS2_FILECHECK_MINSIZE 10
	56
	57	/* File check operation type */
	58	enum {
	59	OCFS2_FILECHECK_TYPE_CHK = 0, /* Check a file(inode) */
	60	OCFS2_FILECHECK_TYPE_FIX, /* Fix a file(inode) */
	61	OCFS2_FILECHECK_TYPE_SET = 100 /* Set entry list maximum size */
	62	};
	63
5f483c4a GH	64	struct ocfs2_filecheck_sysfs_entry { /* sysfs entry per partition */
	65	struct kobject fs_kobj;
	66	struct completion fs_kobj_unregister;
	67	struct ocfs2_filecheck *fs_fcheck;
	68	};
	69
	70
	71	int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb);
	72	void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb);
a860f6eb GH	73
a860f6eb GH	74	#endif /* FILECHECK_H */