92e1d5be91
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* -*- 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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* namei.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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef OCFS2_NAMEI_H
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#define OCFS2_NAMEI_H
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extern const struct inode_operations ocfs2_dir_iops;
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struct dentry *ocfs2_get_parent(struct dentry *child);
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int ocfs2_check_dir_entry (struct inode *dir,
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struct ocfs2_dir_entry *de,
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struct buffer_head *bh,
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unsigned long offset);
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struct buffer_head *ocfs2_find_entry(const char *name,
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int namelen,
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struct inode *dir,
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struct ocfs2_dir_entry **res_dir);
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int ocfs2_orphan_del(struct ocfs2_super *osb,
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handle_t *handle,
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struct inode *orphan_dir_inode,
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struct inode *inode,
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struct buffer_head *orphan_dir_bh);
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static inline int ocfs2_match(int len,
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const char * const name,
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struct ocfs2_dir_entry *de)
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{
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if (len != de->name_len)
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return 0;
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if (!de->inode)
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return 0;
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return !memcmp(name, de->name, len);
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}
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#endif /* OCFS2_NAMEI_H */
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