linux/fs/ocfs2/super.h
Mark Fasheh b25801038d ocfs2: Support xfs style space reservation ioctls
We re-use the RESVSP/UNRESVSP ioctls from xfs which allow the user to
allocate and deallocate regions to a file without zeroing data or changing
i_size.

Though renamed, the structure passed in from user is identical to struct
xfs_flock64. The three fields that are actually used right now are l_whence,
l_start and l_len.

This should get ocfs2 immediate compatibility with userspace software using
the pre-existing xfs ioctls.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-07-10 17:32:09 -07:00

51 lines
1.6 KiB
C

/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
* super.h
*
* Function prototypes
*
* 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 OCFS2_SUPER_H
#define OCFS2_SUPER_H
extern struct workqueue_struct *ocfs2_wq;
int ocfs2_publish_get_mount_state(struct ocfs2_super *osb,
int node_num);
void __ocfs2_error(struct super_block *sb,
const char *function,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
#define ocfs2_error(sb, fmt, args...) __ocfs2_error(sb, __PRETTY_FUNCTION__, fmt, ##args)
void __ocfs2_abort(struct super_block *sb,
const char *function,
const char *fmt, ...)
__attribute__ ((format (printf, 3, 4)));
#define ocfs2_abort(sb, fmt, args...) __ocfs2_abort(sb, __PRETTY_FUNCTION__, fmt, ##args)
unsigned long long ocfs2_max_file_offset(unsigned int blockshift);
#endif /* OCFS2_SUPER_H */