328970de0e
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 84 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100844.756442981@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* dir.h
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*
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* Function prototypes
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*
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* Copyright (C) 2002, 2004 Oracle. All rights reserved.
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*/
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#ifndef OCFS2_DIR_H
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#define OCFS2_DIR_H
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struct ocfs2_dx_hinfo {
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u32 major_hash;
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u32 minor_hash;
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};
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struct ocfs2_dir_lookup_result {
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struct buffer_head *dl_leaf_bh; /* Unindexed leaf
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* block */
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struct ocfs2_dir_entry *dl_entry; /* Target dirent in
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* unindexed leaf */
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struct buffer_head *dl_dx_root_bh; /* Root of indexed
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* tree */
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struct buffer_head *dl_dx_leaf_bh; /* Indexed leaf block */
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struct ocfs2_dx_entry *dl_dx_entry; /* Target dx_entry in
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* indexed leaf */
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struct ocfs2_dx_hinfo dl_hinfo; /* Name hash results */
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struct buffer_head *dl_prev_leaf_bh;/* Previous entry in
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* dir free space
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* list. NULL if
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* previous entry is
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* dx root block. */
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};
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void ocfs2_free_dir_lookup_result(struct ocfs2_dir_lookup_result *res);
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int ocfs2_find_entry(const char *name, int namelen,
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struct inode *dir,
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struct ocfs2_dir_lookup_result *lookup);
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int ocfs2_delete_entry(handle_t *handle,
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struct inode *dir,
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struct ocfs2_dir_lookup_result *res);
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int __ocfs2_add_entry(handle_t *handle,
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struct inode *dir,
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const char *name, int namelen,
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struct inode *inode, u64 blkno,
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struct buffer_head *parent_fe_bh,
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struct ocfs2_dir_lookup_result *lookup);
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static inline int ocfs2_add_entry(handle_t *handle,
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struct dentry *dentry,
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struct inode *inode, u64 blkno,
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struct buffer_head *parent_fe_bh,
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struct ocfs2_dir_lookup_result *lookup)
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{
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return __ocfs2_add_entry(handle, d_inode(dentry->d_parent),
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dentry->d_name.name, dentry->d_name.len,
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inode, blkno, parent_fe_bh, lookup);
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}
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int ocfs2_update_entry(struct inode *dir, handle_t *handle,
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struct ocfs2_dir_lookup_result *res,
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struct inode *new_entry_inode);
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int ocfs2_check_dir_for_entry(struct inode *dir,
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const char *name,
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int namelen);
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int ocfs2_empty_dir(struct inode *inode);
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int ocfs2_find_files_on_disk(const char *name,
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int namelen,
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u64 *blkno,
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struct inode *inode,
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struct ocfs2_dir_lookup_result *res);
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int ocfs2_lookup_ino_from_name(struct inode *dir, const char *name,
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int namelen, u64 *blkno);
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int ocfs2_readdir(struct file *file, struct dir_context *ctx);
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int ocfs2_dir_foreach(struct inode *inode, struct dir_context *ctx);
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int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
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struct inode *dir,
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struct buffer_head *parent_fe_bh,
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const char *name,
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int namelen,
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struct ocfs2_dir_lookup_result *lookup);
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struct ocfs2_alloc_context;
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int ocfs2_fill_new_dir(struct ocfs2_super *osb,
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handle_t *handle,
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struct inode *parent,
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struct inode *inode,
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struct buffer_head *fe_bh,
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struct ocfs2_alloc_context *data_ac,
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struct ocfs2_alloc_context *meta_ac);
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int ocfs2_dx_dir_truncate(struct inode *dir, struct buffer_head *di_bh);
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struct ocfs2_dir_block_trailer *ocfs2_dir_trailer_from_size(int blocksize,
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void *data);
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#endif /* OCFS2_DIR_H */
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