diff options
Diffstat (limited to 'mm/vmalloc.c')
-rw-r--r-- | mm/vmalloc.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 712ae47af0bf..65ae576030da 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c | |||
@@ -17,7 +17,6 @@ | |||
17 | #include <linux/interrupt.h> | 17 | #include <linux/interrupt.h> |
18 | #include <linux/seq_file.h> | 18 | #include <linux/seq_file.h> |
19 | #include <linux/debugobjects.h> | 19 | #include <linux/debugobjects.h> |
20 | #include <linux/vmalloc.h> | ||
21 | #include <linux/kallsyms.h> | 20 | #include <linux/kallsyms.h> |
22 | #include <linux/list.h> | 21 | #include <linux/list.h> |
23 | #include <linux/rbtree.h> | 22 | #include <linux/rbtree.h> |
@@ -175,6 +174,21 @@ static int vmap_page_range(unsigned long addr, unsigned long end, | |||
175 | return nr; | 174 | return nr; |
176 | } | 175 | } |
177 | 176 | ||
177 | static inline int is_vmalloc_or_module_addr(const void *x) | ||
178 | { | ||
179 | /* | ||
180 | * x86-64 and sparc64 put modules in a special place, | ||
181 | * and fall back on vmalloc() if that fails. Others | ||
182 | * just put it in the vmalloc space. | ||
183 | */ | ||
184 | #if defined(CONFIG_MODULES) && defined(MODULES_VADDR) | ||
185 | unsigned long addr = (unsigned long)x; | ||
186 | if (addr >= MODULES_VADDR && addr < MODULES_END) | ||
187 | return 1; | ||
188 | #endif | ||
189 | return is_vmalloc_addr(x); | ||
190 | } | ||
191 | |||
178 | /* | 192 | /* |
179 | * Walk a vmap address to the struct page it maps. | 193 | * Walk a vmap address to the struct page it maps. |
180 | */ | 194 | */ |
@@ -188,8 +202,7 @@ struct page *vmalloc_to_page(const void *vmalloc_addr) | |||
188 | * XXX we might need to change this if we add VIRTUAL_BUG_ON for | 202 | * XXX we might need to change this if we add VIRTUAL_BUG_ON for |
189 | * architectures that do not vmalloc module space | 203 | * architectures that do not vmalloc module space |
190 | */ | 204 | */ |
191 | VIRTUAL_BUG_ON(!is_vmalloc_addr(vmalloc_addr) && | 205 | VIRTUAL_BUG_ON(!is_vmalloc_or_module_addr(vmalloc_addr)); |
192 | !is_module_address(addr)); | ||
193 | 206 | ||
194 | if (!pgd_none(*pgd)) { | 207 | if (!pgd_none(*pgd)) { |
195 | pud_t *pud = pud_offset(pgd, addr); | 208 | pud_t *pud = pud_offset(pgd, addr); |