gfp.h (271127) | gfp.h (282513) |
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1/*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#ifndef _LINUX_GFP_H_ 31#define _LINUX_GFP_H_ 32 | 1/*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 16 unchanged lines hidden (view full) --- 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#ifndef _LINUX_GFP_H_ 31#define _LINUX_GFP_H_ 32 |
33#include <sys/cdefs.h> 34#include <sys/types.h> |
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33#include <sys/systm.h> 34#include <sys/malloc.h> 35 36#include <linux/page.h> 37 38#include <vm/vm_param.h> 39#include <vm/vm_object.h> 40#include <vm/vm_extern.h> --- 57 unchanged lines hidden (view full) --- 98 size_t size; 99 100 if (m == NULL) 101 return; 102 size = PAGE_SIZE << order; 103 kmem_free(kmem_arena, (vm_offset_t)page_address(m), size); 104} 105 | 35#include <sys/systm.h> 36#include <sys/malloc.h> 37 38#include <linux/page.h> 39 40#include <vm/vm_param.h> 41#include <vm/vm_object.h> 42#include <vm/vm_extern.h> --- 57 unchanged lines hidden (view full) --- 100 size_t size; 101 102 if (m == NULL) 103 return; 104 size = PAGE_SIZE << order; 105 kmem_free(kmem_arena, (vm_offset_t)page_address(m), size); 106} 107 |
108static inline void free_pages(uintptr_t addr, unsigned int order) 109{ 110 if (addr == 0) 111 return; 112 __free_pages(virt_to_page((void *)addr), order); 113} 114 |
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106/* 107 * Alloc pages allocates directly from the buddy allocator on linux so 108 * order specifies a power of two bucket of pages and the results 109 * are expected to be aligned on the size as well. 110 */ 111static inline struct page * 112alloc_pages(gfp_t gfp_mask, unsigned int order) 113{ 114 unsigned long page; 115 size_t size; 116 117 size = PAGE_SIZE << order; 118 page = kmem_alloc_contig(kmem_arena, size, gfp_mask, 0, -1, 119 size, 0, VM_MEMATTR_DEFAULT); 120 if (page == 0) 121 return (NULL); 122 return (virt_to_page(page)); 123} 124 | 115/* 116 * Alloc pages allocates directly from the buddy allocator on linux so 117 * order specifies a power of two bucket of pages and the results 118 * are expected to be aligned on the size as well. 119 */ 120static inline struct page * 121alloc_pages(gfp_t gfp_mask, unsigned int order) 122{ 123 unsigned long page; 124 size_t size; 125 126 size = PAGE_SIZE << order; 127 page = kmem_alloc_contig(kmem_arena, size, gfp_mask, 0, -1, 128 size, 0, VM_MEMATTR_DEFAULT); 129 if (page == 0) 130 return (NULL); 131 return (virt_to_page(page)); 132} 133 |
134static inline uintptr_t __get_free_pages(gfp_t gfp_mask, unsigned int order) 135{ 136 struct page *page; 137 138 page = alloc_pages(gfp_mask, order); 139 if (page == NULL) 140 return (0); 141 return ((uintptr_t)page_address(page)); 142} 143 |
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125#define alloc_pages_node(node, mask, order) alloc_pages(mask, order) 126 127#define kmalloc_node(chunk, mask, node) kmalloc(chunk, mask) 128 129#endif /* _LINUX_GFP_H_ */ | 144#define alloc_pages_node(node, mask, order) alloc_pages(mask, order) 145 146#define kmalloc_node(chunk, mask, node) kmalloc(chunk, mask) 147 148#endif /* _LINUX_GFP_H_ */ |