diff options
Diffstat (limited to 'mm')
-rw-r--r-- | mm/nommu.c | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index 1b105d28949f..9eef6a398555 100644 --- a/mm/nommu.c +++ b/mm/nommu.c | |||
@@ -54,12 +54,6 @@ DECLARE_RWSEM(nommu_vma_sem); | |||
54 | struct vm_operations_struct generic_file_vm_ops = { | 54 | struct vm_operations_struct generic_file_vm_ops = { |
55 | }; | 55 | }; |
56 | 56 | ||
57 | EXPORT_SYMBOL(vfree); | ||
58 | EXPORT_SYMBOL(vmalloc_to_page); | ||
59 | EXPORT_SYMBOL(vmalloc_32); | ||
60 | EXPORT_SYMBOL(vmap); | ||
61 | EXPORT_SYMBOL(vunmap); | ||
62 | |||
63 | /* | 57 | /* |
64 | * Handle all mappings that got truncated by a "truncate()" | 58 | * Handle all mappings that got truncated by a "truncate()" |
65 | * system call. | 59 | * system call. |
@@ -168,7 +162,6 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, | |||
168 | finish_or_fault: | 162 | finish_or_fault: |
169 | return i ? : -EFAULT; | 163 | return i ? : -EFAULT; |
170 | } | 164 | } |
171 | |||
172 | EXPORT_SYMBOL(get_user_pages); | 165 | EXPORT_SYMBOL(get_user_pages); |
173 | 166 | ||
174 | DEFINE_RWLOCK(vmlist_lock); | 167 | DEFINE_RWLOCK(vmlist_lock); |
@@ -178,6 +171,7 @@ void vfree(void *addr) | |||
178 | { | 171 | { |
179 | kfree(addr); | 172 | kfree(addr); |
180 | } | 173 | } |
174 | EXPORT_SYMBOL(vfree); | ||
181 | 175 | ||
182 | void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) | 176 | void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) |
183 | { | 177 | { |
@@ -186,17 +180,19 @@ void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) | |||
186 | */ | 180 | */ |
187 | return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM); | 181 | return kmalloc(size, (gfp_mask | __GFP_COMP) & ~__GFP_HIGHMEM); |
188 | } | 182 | } |
183 | EXPORT_SYMBOL(__vmalloc); | ||
189 | 184 | ||
190 | struct page * vmalloc_to_page(void *addr) | 185 | struct page * vmalloc_to_page(void *addr) |
191 | { | 186 | { |
192 | return virt_to_page(addr); | 187 | return virt_to_page(addr); |
193 | } | 188 | } |
189 | EXPORT_SYMBOL(vmalloc_to_page); | ||
194 | 190 | ||
195 | unsigned long vmalloc_to_pfn(void *addr) | 191 | unsigned long vmalloc_to_pfn(void *addr) |
196 | { | 192 | { |
197 | return page_to_pfn(virt_to_page(addr)); | 193 | return page_to_pfn(virt_to_page(addr)); |
198 | } | 194 | } |
199 | 195 | EXPORT_SYMBOL(vmalloc_to_pfn); | |
200 | 196 | ||
201 | long vread(char *buf, char *addr, unsigned long count) | 197 | long vread(char *buf, char *addr, unsigned long count) |
202 | { | 198 | { |
@@ -237,9 +233,8 @@ void *vmalloc_node(unsigned long size, int node) | |||
237 | } | 233 | } |
238 | EXPORT_SYMBOL(vmalloc_node); | 234 | EXPORT_SYMBOL(vmalloc_node); |
239 | 235 | ||
240 | /* | 236 | /** |
241 | * vmalloc_32 - allocate virtually continguos memory (32bit addressable) | 237 | * vmalloc_32 - allocate virtually contiguous memory (32bit addressable) |
242 | * | ||
243 | * @size: allocation size | 238 | * @size: allocation size |
244 | * | 239 | * |
245 | * Allocate enough 32bit PA addressable pages to cover @size from the | 240 | * Allocate enough 32bit PA addressable pages to cover @size from the |
@@ -249,17 +244,33 @@ void *vmalloc_32(unsigned long size) | |||
249 | { | 244 | { |
250 | return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL); | 245 | return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL); |
251 | } | 246 | } |
247 | EXPORT_SYMBOL(vmalloc_32); | ||
248 | |||
249 | /** | ||
250 | * vmalloc_32_user - allocate zeroed virtually contiguous 32bit memory | ||
251 | * @size: allocation size | ||
252 | * | ||
253 | * The resulting memory area is 32bit addressable and zeroed so it can be | ||
254 | * mapped to userspace without leaking data. | ||
255 | */ | ||
256 | void *vmalloc_32_user(unsigned long size) | ||
257 | { | ||
258 | return __vmalloc(size, GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL); | ||
259 | } | ||
260 | EXPORT_SYMBOL(vmalloc_32_user); | ||
252 | 261 | ||
253 | void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot) | 262 | void *vmap(struct page **pages, unsigned int count, unsigned long flags, pgprot_t prot) |
254 | { | 263 | { |
255 | BUG(); | 264 | BUG(); |
256 | return NULL; | 265 | return NULL; |
257 | } | 266 | } |
267 | EXPORT_SYMBOL(vmap); | ||
258 | 268 | ||
259 | void vunmap(void *addr) | 269 | void vunmap(void *addr) |
260 | { | 270 | { |
261 | BUG(); | 271 | BUG(); |
262 | } | 272 | } |
273 | EXPORT_SYMBOL(vunmap); | ||
263 | 274 | ||
264 | /* | 275 | /* |
265 | * Implement a stub for vmalloc_sync_all() if the architecture chose not to | 276 | * Implement a stub for vmalloc_sync_all() if the architecture chose not to |
@@ -269,6 +280,13 @@ void __attribute__((weak)) vmalloc_sync_all(void) | |||
269 | { | 280 | { |
270 | } | 281 | } |
271 | 282 | ||
283 | int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, | ||
284 | struct page *page) | ||
285 | { | ||
286 | return -EINVAL; | ||
287 | } | ||
288 | EXPORT_SYMBOL(vm_insert_page); | ||
289 | |||
272 | /* | 290 | /* |
273 | * sys_brk() for the most part doesn't need the global kernel | 291 | * sys_brk() for the most part doesn't need the global kernel |
274 | * lock, except when an application is doing something nasty | 292 | * lock, except when an application is doing something nasty |
@@ -994,6 +1012,7 @@ unsigned long do_mmap_pgoff(struct file *file, | |||
994 | show_free_areas(); | 1012 | show_free_areas(); |
995 | return -ENOMEM; | 1013 | return -ENOMEM; |
996 | } | 1014 | } |
1015 | EXPORT_SYMBOL(do_mmap_pgoff); | ||
997 | 1016 | ||
998 | /* | 1017 | /* |
999 | * handle mapping disposal for uClinux | 1018 | * handle mapping disposal for uClinux |
@@ -1074,6 +1093,7 @@ int do_munmap(struct mm_struct *mm, unsigned long addr, size_t len) | |||
1074 | 1093 | ||
1075 | return 0; | 1094 | return 0; |
1076 | } | 1095 | } |
1096 | EXPORT_SYMBOL(do_munmap); | ||
1077 | 1097 | ||
1078 | asmlinkage long sys_munmap(unsigned long addr, size_t len) | 1098 | asmlinkage long sys_munmap(unsigned long addr, size_t len) |
1079 | { | 1099 | { |
@@ -1164,6 +1184,7 @@ unsigned long do_mremap(unsigned long addr, | |||
1164 | 1184 | ||
1165 | return vma->vm_start; | 1185 | return vma->vm_start; |
1166 | } | 1186 | } |
1187 | EXPORT_SYMBOL(do_mremap); | ||
1167 | 1188 | ||
1168 | asmlinkage unsigned long sys_mremap(unsigned long addr, | 1189 | asmlinkage unsigned long sys_mremap(unsigned long addr, |
1169 | unsigned long old_len, unsigned long new_len, | 1190 | unsigned long old_len, unsigned long new_len, |
@@ -1231,7 +1252,6 @@ unsigned long get_unmapped_area(struct file *file, unsigned long addr, | |||
1231 | 1252 | ||
1232 | return get_area(file, addr, len, pgoff, flags); | 1253 | return get_area(file, addr, len, pgoff, flags); |
1233 | } | 1254 | } |
1234 | |||
1235 | EXPORT_SYMBOL(get_unmapped_area); | 1255 | EXPORT_SYMBOL(get_unmapped_area); |
1236 | 1256 | ||
1237 | /* | 1257 | /* |
@@ -1346,6 +1366,7 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) | |||
1346 | BUG(); | 1366 | BUG(); |
1347 | return 0; | 1367 | return 0; |
1348 | } | 1368 | } |
1369 | EXPORT_SYMBOL(filemap_fault); | ||
1349 | 1370 | ||
1350 | /* | 1371 | /* |
1351 | * Access another process' address space. | 1372 | * Access another process' address space. |