mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-16 17:23:55 +08:00
fc881fa0d5
The in-memory slot map uses the same magic as the on-disk one. There is a special value to mark a slot as invalid. It relies on the size of certain types and so on. Write a new in-memory map that keeps validity as a separate field. Outside of the I/O functions, OCFS2_INVALID_SLOT now means what it is supposed to. It also is no longer tied to the type size. This also means that only the I/O functions refer to 16bit quantities. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
|
|
* vim: noexpandtab sw=8 ts=8 sts=0:
|
|
*
|
|
* slotmap.h
|
|
*
|
|
* description here
|
|
*
|
|
* Copyright (C) 2002, 2004 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 SLOTMAP_H
|
|
#define SLOTMAP_H
|
|
|
|
int ocfs2_init_slot_info(struct ocfs2_super *osb);
|
|
void ocfs2_free_slot_info(struct ocfs2_super *osb);
|
|
|
|
int ocfs2_find_slot(struct ocfs2_super *osb);
|
|
void ocfs2_put_slot(struct ocfs2_super *osb);
|
|
|
|
int ocfs2_refresh_slot_info(struct ocfs2_super *osb);
|
|
|
|
int ocfs2_node_num_to_slot(struct ocfs2_super *osb, unsigned int node_num);
|
|
int ocfs2_slot_to_node_num_locked(struct ocfs2_super *osb, int slot_num,
|
|
unsigned int *node_num);
|
|
|
|
int ocfs2_clear_slot(struct ocfs2_super *osb, int slot_num);
|
|
|
|
#endif
|