linux/fs/ocfs2/ocfs2_jbd_compat.h
Joel Becker 2b4e30fbde ocfs2: Switch over to JBD2.
ocfs2 wants JBD2 for many reasons, not the least of which is that JBD is
limiting our maximum filesystem size.

It's a pretty trivial change.  Most functions are just renamed.  The
only functional change is moving to Jan's inode-based ordered data mode.
It's better, too.

Because JBD2 reads and writes JBD journals, this is compatible with any
existing filesystem.  It can even interact with JBD-based ocfs2 as long
as the journal is formated for JBD.

We provide a compatibility option so that paranoid people can still use
JBD for the time being.  This will go away shortly.

[ Moved call of ocfs2_begin_ordered_truncate() from ocfs2_delete_inode() to
  ocfs2_truncate_for_delete(). --Mark ]

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2008-10-13 17:02:43 -07:00

83 lines
2.5 KiB
C

/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
* ocfs2_jbd_compat.h
*
* Compatibility defines for JBD.
*
* Copyright (C) 2008 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.
*/
#ifndef OCFS2_JBD_COMPAT_H
#define OCFS2_JBD_COMPAT_H
#ifndef CONFIG_OCFS2_COMPAT_JBD
# error Should not have been included
#endif
struct jbd2_inode {
unsigned int dummy;
};
#define JBD2_BARRIER JFS_BARRIER
#define JBD2_DEFAULT_MAX_COMMIT_AGE JBD_DEFAULT_MAX_COMMIT_AGE
#define jbd2_journal_ack_err journal_ack_err
#define jbd2_journal_clear_err journal_clear_err
#define jbd2_journal_destroy journal_destroy
#define jbd2_journal_dirty_metadata journal_dirty_metadata
#define jbd2_journal_errno journal_errno
#define jbd2_journal_extend journal_extend
#define jbd2_journal_flush journal_flush
#define jbd2_journal_force_commit journal_force_commit
#define jbd2_journal_get_write_access journal_get_write_access
#define jbd2_journal_get_undo_access journal_get_undo_access
#define jbd2_journal_init_inode journal_init_inode
#define jbd2_journal_invalidatepage journal_invalidatepage
#define jbd2_journal_load journal_load
#define jbd2_journal_lock_updates journal_lock_updates
#define jbd2_journal_restart journal_restart
#define jbd2_journal_start journal_start
#define jbd2_journal_start_commit journal_start_commit
#define jbd2_journal_stop journal_stop
#define jbd2_journal_try_to_free_buffers journal_try_to_free_buffers
#define jbd2_journal_unlock_updates journal_unlock_updates
#define jbd2_journal_wipe journal_wipe
#define jbd2_log_wait_commit log_wait_commit
static inline int jbd2_journal_file_inode(handle_t *handle,
struct jbd2_inode *inode)
{
return 0;
}
static inline int jbd2_journal_begin_ordered_truncate(struct jbd2_inode *inode,
loff_t new_size)
{
return 0;
}
static inline void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode,
struct inode *inode)
{
return;
}
static inline void jbd2_journal_release_jbd_inode(journal_t *journal,
struct jbd2_inode *jinode)
{
return;
}
#endif /* OCFS2_JBD_COMPAT_H */