Release 4.18 fs/befs/inode.c

// SPDX-License-Identifier: GPL-2.0
/*
 * inode.c
 *
 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
 */

#include <linux/fs.h>

#include "befs.h"
#include "inode.h"

/*
 * Validates the correctness of the befs inode
 * Returns BEFS_OK if the inode should be used, otherwise
 * returns BEFS_BAD_INODE
 */

int

befs_check_inode(struct super_block *sb, befs_inode *raw_inode,
		 befs_blocknr_t inode)
{
	u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1);
	befs_inode_addr ino_num = fsrun_to_cpu(sb, raw_inode->inode_num);
	u32 flags = fs32_to_cpu(sb, raw_inode->flags);

	/* check magic header. */
	if (magic1 != BEFS_INODE_MAGIC1) {
		befs_error(sb,
			   "Inode has a bad magic header - inode = %lu",
			   (unsigned long)inode);
		return BEFS_BAD_INODE;
	}

	/*
         * Sanity check2: inodes store their own block address. Check it.
         */
	if (inode != iaddr2blockno(sb, &ino_num)) {
		befs_error(sb, "inode blocknr field disagrees with vfs "
			   "VFS: %lu, Inode %lu", (unsigned long)
			   inode, (unsigned long)iaddr2blockno(sb, &ino_num));
		return BEFS_BAD_INODE;
	}

	/*
         * check flag
         */

	if (!(flags & BEFS_INODE_IN_USE)) {
		befs_error(sb, "inode is not used - inode = %lu",
			   (unsigned long)inode);
		return BEFS_BAD_INODE;
	}

	return BEFS_OK;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Alan Cox
137
89.54%
1
50.00%
Fabian Frederick
16
10.46%
1
50.00%
Total
153
100.00%
2
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Alan Cox
146
88.48%
1
25.00%
Fabian Frederick
16
9.70%
1
25.00%
Luis de Bethencourt
2
1.21%
1
25.00%
Greg Kroah-Hartman
1
0.61%
1
25.00%
Total
165
100.00%
4
100.00%
Directory: fs/befs

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