| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * dcache.h |
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| 4 | * |
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| 5 | * Function prototypes |
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| 6 | * |
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| 7 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef OCFS2_DCACHE_H |
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| 11 | #define OCFS2_DCACHE_H |
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| 12 | |
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| 13 | extern const struct dentry_operations ocfs2_dentry_ops; |
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| 14 | |
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| 15 | struct ocfs2_dentry_lock { |
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| 16 | unsigned int dl_count; |
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| 17 | u64 dl_parent_blkno; |
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| 18 | |
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| 19 | /* |
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| 20 | * The ocfs2_dentry_lock keeps an inode reference until |
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| 21 | * dl_lockres has been destroyed. This is usually done in |
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| 22 | * ->d_iput() anyway, so there should be minimal impact. |
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| 23 | */ |
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| 24 | struct inode *dl_inode; |
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| 25 | struct ocfs2_lock_res dl_lockres; |
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| 26 | }; |
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| 27 | |
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| 28 | int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode, |
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| 29 | u64 parent_blkno); |
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| 30 | |
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| 31 | void ocfs2_dentry_lock_put(struct ocfs2_super *osb, |
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| 32 | struct ocfs2_dentry_lock *dl); |
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| 33 | |
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| 34 | struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno, |
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| 35 | int skip_unhashed); |
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| 36 | |
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| 37 | void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target, |
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| 38 | struct inode *old_dir, struct inode *new_dir); |
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| 39 | |
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| 40 | extern spinlock_t dentry_attach_lock; |
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| 41 | void ocfs2_dentry_attach_gen(struct dentry *dentry); |
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| 42 | |
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| 43 | #endif /* OCFS2_DCACHE_H */ |
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| 44 | |
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