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/*********************************************************
* Copyright (C) 2013 VMware, Inc. All rights reserved.
*
* 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 version 2 and no 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*********************************************************/
#ifndef __COMPAT_DCACHE_H__
# define __COMPAT_DCACHE_H__
#include <linux/dcache.h>
/*
* per-dentry locking was born in 2.5.62.
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 62)
#define compat_lock_dentry(dentry) spin_lock(&dentry->d_lock)
#define compat_unlock_dentry(dentry) spin_unlock(&dentry->d_lock)
#else
#define compat_lock_dentry(dentry) do {} while (0)
#define compat_unlock_dentry(dentry) do {} while (0)
#endif
/*
* d_alloc_name was born in 2.6.10.
*/
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10)
#define compat_d_alloc_name(parent, s) d_alloc_name(parent, s)
#else
#define compat_d_alloc_name(parent, s) \
({ \
struct qstr q; \
q.name = s; \
q.len = strlen(s); \
q.hash = full_name_hash(q.name, q.len); \
d_alloc(parent, &q); \
})
#endif
#endif /* __COMPAT_DCACHE_H__ */
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