5f483c4abb
Use embedded kobject mechanism for online file check feature, this will avoid to use a global list to save/search per-device online file check related data, meanwhile, reduce the code lines and make the code logic clear. The changed code is based on Goldwyn Rodrigues's patches and ext4 fs code. Link: http://lkml.kernel.org/r/1495611866-27360-4-git-send-email-ghe@suse.com Signed-off-by: Gang He <ghe@suse.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* filecheck.h
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*
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* Online file check.
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*
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* Copyright (C) 2016 SuSE. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#ifndef FILECHECK_H
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#define FILECHECK_H
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#include <linux/types.h>
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#include <linux/list.h>
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/* File check errno */
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enum {
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OCFS2_FILECHECK_ERR_SUCCESS = 0, /* Success */
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OCFS2_FILECHECK_ERR_FAILED = 1000, /* Other failure */
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OCFS2_FILECHECK_ERR_INPROGRESS, /* In progress */
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OCFS2_FILECHECK_ERR_READONLY, /* Read only */
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OCFS2_FILECHECK_ERR_INJBD, /* Buffer in jbd */
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OCFS2_FILECHECK_ERR_INVALIDINO, /* Invalid ino */
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OCFS2_FILECHECK_ERR_BLOCKECC, /* Block ecc */
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OCFS2_FILECHECK_ERR_BLOCKNO, /* Block number */
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OCFS2_FILECHECK_ERR_VALIDFLAG, /* Inode valid flag */
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OCFS2_FILECHECK_ERR_GENERATION, /* Inode generation */
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OCFS2_FILECHECK_ERR_UNSUPPORTED /* Unsupported */
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};
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#define OCFS2_FILECHECK_ERR_START OCFS2_FILECHECK_ERR_FAILED
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#define OCFS2_FILECHECK_ERR_END OCFS2_FILECHECK_ERR_UNSUPPORTED
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struct ocfs2_filecheck {
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struct list_head fc_head; /* File check entry list head */
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spinlock_t fc_lock;
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unsigned int fc_max; /* Maximum number of entry in list */
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unsigned int fc_size; /* Current entry count in list */
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unsigned int fc_done; /* Finished entry count in list */
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};
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#define OCFS2_FILECHECK_MAXSIZE 100
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#define OCFS2_FILECHECK_MINSIZE 10
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/* File check operation type */
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enum {
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OCFS2_FILECHECK_TYPE_CHK = 0, /* Check a file(inode) */
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OCFS2_FILECHECK_TYPE_FIX, /* Fix a file(inode) */
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OCFS2_FILECHECK_TYPE_SET = 100 /* Set entry list maximum size */
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};
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struct ocfs2_filecheck_sysfs_entry { /* sysfs entry per partition */
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struct kobject fs_kobj;
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struct completion fs_kobj_unregister;
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struct ocfs2_filecheck *fs_fcheck;
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};
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int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb);
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void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb);
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#endif /* FILECHECK_H */
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