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diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h
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1/*
2 * malloc.h - NTFS kernel memory handling. Part of the Linux-NTFS project.
3 *
4 * Copyright (c) 2001-2004 Anton Altaparmakov
5 *
6 * This program/include file is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as published
8 * by the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program/include file is distributed in the hope that it will be
12 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program (in the main directory of the Linux-NTFS
18 * distribution in the file COPYING); if not, write to the Free Software
19 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _LINUX_NTFS_MALLOC_H
23#define _LINUX_NTFS_MALLOC_H
24
25#include <linux/vmalloc.h>
26#include <linux/slab.h>
27#include <linux/highmem.h>
28
29/**
30 * ntfs_malloc_nofs - allocate memory in multiples of pages
31 * @size number of bytes to allocate
32 *
33 * Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and
34 * returns a pointer to the allocated memory.
35 *
36 * If there was insufficient memory to complete the request, return NULL.
37 */
38static inline void *ntfs_malloc_nofs(unsigned long size)
39{
40 if (likely(size <= PAGE_SIZE)) {
41 BUG_ON(!size);
42 /* kmalloc() has per-CPU caches so is faster for now. */
43 return kmalloc(PAGE_SIZE, GFP_NOFS);
44 /* return (void *)__get_free_page(GFP_NOFS | __GFP_HIGHMEM); */
45 }
46 if (likely(size >> PAGE_SHIFT < num_physpages))
47 return __vmalloc(size, GFP_NOFS | __GFP_HIGHMEM, PAGE_KERNEL);
48 return NULL;
49}
50
51static inline void ntfs_free(void *addr)
52{
53 if (likely(((unsigned long)addr < VMALLOC_START) ||
54 ((unsigned long)addr >= VMALLOC_END ))) {
55 kfree(addr);
56 /* free_page((unsigned long)addr); */
57 return;
58 }
59 vfree(addr);
60}
61
62#endif /* _LINUX_NTFS_MALLOC_H */