mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-22 17:33:01 +00:00
ccd979bdbc
The OCFS2 file system module. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
|
|
* vim: noexpandtab sw=8 ts=8 sts=0:
|
|
*
|
|
* extent_map.h
|
|
*
|
|
* In-memory file extent mappings for OCFS2.
|
|
*
|
|
* Copyright (C) 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, version 2, as published by the Free Software Foundation.
|
|
*
|
|
* 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 _EXTENT_MAP_H
|
|
#define _EXTENT_MAP_H
|
|
|
|
int init_ocfs2_extent_maps(void);
|
|
void exit_ocfs2_extent_maps(void);
|
|
|
|
/*
|
|
* EVERY CALL here except _init, _trunc, and _drop expects alloc_sem
|
|
* to be held. The allocation cannot change at all while the map is
|
|
* in the process of being updated.
|
|
*/
|
|
int ocfs2_extent_map_init(struct inode *inode);
|
|
int ocfs2_extent_map_append(struct inode *inode,
|
|
struct ocfs2_extent_rec *rec,
|
|
u32 new_clusters);
|
|
int ocfs2_extent_map_get_blocks(struct inode *inode,
|
|
u64 v_blkno, int count,
|
|
u64 *p_blkno, int *ret_count);
|
|
int ocfs2_extent_map_drop(struct inode *inode, u32 new_clusters);
|
|
int ocfs2_extent_map_trunc(struct inode *inode, u32 new_clusters);
|
|
|
|
#endif /* _EXTENT_MAP_H */
|