1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* -*- mode: c; c-basic-offset: 8; -*- 3*4882a593Smuzhiyun * vim: noexpandtab sw=8 ts=8 sts=0: 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * dcache.h 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Function prototypes 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * Copyright (C) 2002, 2004 Oracle. All rights reserved. 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef OCFS2_DCACHE_H 13*4882a593Smuzhiyun #define OCFS2_DCACHE_H 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun extern const struct dentry_operations ocfs2_dentry_ops; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun struct ocfs2_dentry_lock { 18*4882a593Smuzhiyun unsigned int dl_count; 19*4882a593Smuzhiyun u64 dl_parent_blkno; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* 22*4882a593Smuzhiyun * The ocfs2_dentry_lock keeps an inode reference until 23*4882a593Smuzhiyun * dl_lockres has been destroyed. This is usually done in 24*4882a593Smuzhiyun * ->d_iput() anyway, so there should be minimal impact. 25*4882a593Smuzhiyun */ 26*4882a593Smuzhiyun struct inode *dl_inode; 27*4882a593Smuzhiyun struct ocfs2_lock_res dl_lockres; 28*4882a593Smuzhiyun }; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode, 31*4882a593Smuzhiyun u64 parent_blkno); 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun void ocfs2_dentry_lock_put(struct ocfs2_super *osb, 34*4882a593Smuzhiyun struct ocfs2_dentry_lock *dl); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno, 37*4882a593Smuzhiyun int skip_unhashed); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target, 40*4882a593Smuzhiyun struct inode *old_dir, struct inode *new_dir); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun extern spinlock_t dentry_attach_lock; 43*4882a593Smuzhiyun void ocfs2_dentry_attach_gen(struct dentry *dentry); 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun #endif /* OCFS2_DCACHE_H */ 46