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| 1 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 2 | * vim: noexpandtab sw=8 ts=8 sts=0: |
| 3 | * |
| 4 | * dcache.h |
| 5 | * |
| 6 | * Function prototypes |
| 7 | * |
| 8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public |
| 12 | * License as published by the Free Software Foundation; either |
| 13 | * version 2 of the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public |
| 21 | * License along with this program; if not, write to the |
| 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 23 | * Boston, MA 021110-1307, USA. |
| 24 | */ |
| 25 | |
| 26 | #ifndef OCFS2_DCACHE_H |
| 27 | #define OCFS2_DCACHE_H |
| 28 | |
| 29 | extern const struct dentry_operations ocfs2_dentry_ops; |
| 30 | |
| 31 | struct ocfs2_dentry_lock { |
| 32 | /* Use count of dentry lock */ |
| 33 | unsigned int dl_count; |
| 34 | union { |
| 35 | /* Linked list of dentry locks to release */ |
| 36 | struct ocfs2_dentry_lock *dl_next; |
| 37 | u64 dl_parent_blkno; |
| 38 | }; |
| 39 | |
| 40 | /* |
| 41 | * The ocfs2_dentry_lock keeps an inode reference until |
| 42 | * dl_lockres has been destroyed. This is usually done in |
| 43 | * ->d_iput() anyway, so there should be minimal impact. |
| 44 | */ |
| 45 | struct inode *dl_inode; |
| 46 | struct ocfs2_lock_res dl_lockres; |
| 47 | }; |
| 48 | |
| 49 | int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode, |
| 50 | u64 parent_blkno); |
| 51 | |
| 52 | extern spinlock_t dentry_list_lock; |
| 53 | |
| 54 | void ocfs2_dentry_lock_put(struct ocfs2_super *osb, |
| 55 | struct ocfs2_dentry_lock *dl); |
| 56 | |
| 57 | void ocfs2_drop_dl_inodes(struct work_struct *work); |
| 58 | void ocfs2_drop_all_dl_inodes(struct ocfs2_super *osb); |
| 59 | |
| 60 | struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno, |
| 61 | int skip_unhashed); |
| 62 | |
| 63 | void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target, |
| 64 | struct inode *old_dir, struct inode *new_dir); |
| 65 | |
| 66 | extern spinlock_t dentry_attach_lock; |
| 67 | void ocfs2_dentry_attach_gen(struct dentry *dentry); |
| 68 | |
| 69 | #endif /* OCFS2_DCACHE_H */ |
| 70 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
