mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 05:04:00 +08:00
0027dd5bc2
We can't use LKM_LOCAL for new dentry locks because an unlink and subsequent re-create of a name/inode pair may result in the lock still being mastered somewhere in the cluster. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
|
|
* vim: noexpandtab sw=8 ts=8 sts=0:
|
|
*
|
|
* dcache.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_DCACHE_H
|
|
#define OCFS2_DCACHE_H
|
|
|
|
extern struct dentry_operations ocfs2_dentry_ops;
|
|
|
|
struct ocfs2_dentry_lock {
|
|
unsigned int dl_count;
|
|
u64 dl_parent_blkno;
|
|
|
|
/*
|
|
* The ocfs2_dentry_lock keeps an inode reference until
|
|
* dl_lockres has been destroyed. This is usually done in
|
|
* ->d_iput() anyway, so there should be minimal impact.
|
|
*/
|
|
struct inode *dl_inode;
|
|
struct ocfs2_lock_res dl_lockres;
|
|
};
|
|
|
|
int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode,
|
|
u64 parent_blkno);
|
|
|
|
void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
|
|
struct ocfs2_dentry_lock *dl);
|
|
|
|
struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno,
|
|
int skip_unhashed);
|
|
|
|
void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target,
|
|
struct inode *old_dir, struct inode *new_dir);
|
|
|
|
extern spinlock_t dentry_attach_lock;
|
|
|
|
#endif /* OCFS2_DCACHE_H */
|