Release 4.11 fs/ocfs2/ocfs2_lockid.h

/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * ocfs2_lockid.h
 *
 * Defines OCFS2 lockid bits.
 *
 * Copyright (C) 2002, 2005 Oracle.  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; either
 * version 2 of the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */

#ifndef OCFS2_LOCKID_H

#define OCFS2_LOCKID_H

/* lock ids are made up in the following manner:
 * name[0]     --> type
 * name[1-6]   --> 6 pad characters, reserved for now
 * name[7-22]  --> block number, expressed in hex as 16 chars
 * name[23-30] --> i_generation, expressed in hex 8 chars
 * name[31]    --> '\0' */

#define OCFS2_LOCK_ID_MAX_LEN  32

#define OCFS2_LOCK_ID_PAD "000000"


#define OCFS2_DENTRY_LOCK_INO_START 18


enum ocfs2_lock_type {
	
OCFS2_LOCK_TYPE_META = 0,
	
OCFS2_LOCK_TYPE_DATA,
	
OCFS2_LOCK_TYPE_SUPER,
	
OCFS2_LOCK_TYPE_RENAME,
	
OCFS2_LOCK_TYPE_RW,
	
OCFS2_LOCK_TYPE_DENTRY,
	
OCFS2_LOCK_TYPE_OPEN,
	
OCFS2_LOCK_TYPE_FLOCK,
	
OCFS2_LOCK_TYPE_QINFO,
	
OCFS2_LOCK_TYPE_NFS_SYNC,
	
OCFS2_LOCK_TYPE_ORPHAN_SCAN,
	
OCFS2_LOCK_TYPE_REFCOUNT,
	
OCFS2_NUM_LOCK_TYPES
};



static inline char ocfs2_lock_type_char(enum ocfs2_lock_type type)
{
	char c;
	switch (type) {
		case OCFS2_LOCK_TYPE_META:
			c = 'M';
			break;
		case OCFS2_LOCK_TYPE_DATA:
			c = 'D';
			break;
		case OCFS2_LOCK_TYPE_SUPER:
			c = 'S';
			break;
		case OCFS2_LOCK_TYPE_RENAME:
			c = 'R';
			break;
		case OCFS2_LOCK_TYPE_RW:
			c = 'W';
			break;
		case OCFS2_LOCK_TYPE_DENTRY:
			c = 'N';
			break;
		case OCFS2_LOCK_TYPE_OPEN:
			c = 'O';
			break;
		case OCFS2_LOCK_TYPE_FLOCK:
			c = 'F';
			break;
		case OCFS2_LOCK_TYPE_QINFO:
			c = 'Q';
			break;
		case OCFS2_LOCK_TYPE_NFS_SYNC:
			c = 'Y';
			break;
		case OCFS2_LOCK_TYPE_ORPHAN_SCAN:
			c = 'P';
			break;
		case OCFS2_LOCK_TYPE_REFCOUNT:
			c = 'T';
			break;
		default:
			c = '\0';
	}

	return c;
}

Contributors
Person
Tokens
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Commits
CommitProp
Mark Fasheh
84
67.74%
3
37.50%
Jan Kara
8
6.45%
1
12.50%
Tiger Yang
8
6.45%
1
12.50%
Tao Ma
8
6.45%
1
12.50%
Wengang Wang
8
6.45%
1
12.50%
Srinivas Eeda
8
6.45%
1
12.50%
Total
124
100.00%
8
100.00%


static char *ocfs2_lock_type_strings[] = {
	[OCFS2_LOCK_TYPE_META] = "Meta",
	[OCFS2_LOCK_TYPE_DATA] = "Data",
	[OCFS2_LOCK_TYPE_SUPER] = "Super",
	[OCFS2_LOCK_TYPE_RENAME] = "Rename",
	/* Need to differntiate from [R]ename.. serializing writes is the
         * important job it does, anyway. */
	[OCFS2_LOCK_TYPE_RW] = "Write/Read",
	[OCFS2_LOCK_TYPE_DENTRY] = "Dentry",
	[OCFS2_LOCK_TYPE_OPEN] = "Open",
	[OCFS2_LOCK_TYPE_FLOCK] = "Flock",
	[OCFS2_LOCK_TYPE_QINFO] = "Quota",
	[OCFS2_LOCK_TYPE_NFS_SYNC] = "NFSSync",
	[OCFS2_LOCK_TYPE_ORPHAN_SCAN] = "OrphanScan",
	[OCFS2_LOCK_TYPE_REFCOUNT] = "Refcount",
};



static inline const char *ocfs2_lock_type_string(enum ocfs2_lock_type type)
{
#ifdef __KERNEL__
	BUG_ON(type >= OCFS2_NUM_LOCK_TYPES);
#endif
	return ocfs2_lock_type_strings[type];
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mark Fasheh
30
96.77%
1
50.00%
Joel Becker
1
3.23%
1
50.00%
Total
31
100.00%
2
100.00%

#endif  /* OCFS2_LOCKID_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Mark Fasheh
210
72.16%
3
30.00%
Jan Kara
22
7.56%
2
20.00%
Tiger Yang
16
5.50%
1
10.00%
Tao Ma
16
5.50%
1
10.00%
Srinivas Eeda
16
5.50%
1
10.00%
Wengang Wang
10
3.44%
1
10.00%
Joel Becker
1
0.34%
1
10.00%
Total
291
100.00%
10
100.00%
Directory: fs/ocfs2

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