fault.c (f86268549f424f83b9eb0963989270e14fbfc3de) fault.c (a79e53d85683c6dd9f99c90511028adc2043031f)
1/*
2 * Copyright (C) 1995 Linus Torvalds
3 * Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs.
4 * Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar
5 */
6#include <linux/magic.h> /* STACK_END_MAGIC */
7#include <linux/sched.h> /* test_thread_flag(), ... */
8#include <linux/kdebug.h> /* oops_begin/end, ... */

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224 unsigned long address;
225
226 if (SHARED_KERNEL_PMD)
227 return;
228
229 for (address = VMALLOC_START & PMD_MASK;
230 address >= TASK_SIZE && address < FIXADDR_TOP;
231 address += PMD_SIZE) {
1/*
2 * Copyright (C) 1995 Linus Torvalds
3 * Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs.
4 * Copyright (C) 2008-2009, Red Hat Inc., Ingo Molnar
5 */
6#include <linux/magic.h> /* STACK_END_MAGIC */
7#include <linux/sched.h> /* test_thread_flag(), ... */
8#include <linux/kdebug.h> /* oops_begin/end, ... */

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224 unsigned long address;
225
226 if (SHARED_KERNEL_PMD)
227 return;
228
229 for (address = VMALLOC_START & PMD_MASK;
230 address >= TASK_SIZE && address < FIXADDR_TOP;
231 address += PMD_SIZE) {
232
233 unsigned long flags;
234 struct page *page;
235
232 struct page *page;
233
236 spin_lock_irqsave(&pgd_lock, flags);
234 spin_lock(&pgd_lock);
237 list_for_each_entry(page, &pgd_list, lru) {
238 spinlock_t *pgt_lock;
239 pmd_t *ret;
240
235 list_for_each_entry(page, &pgd_list, lru) {
236 spinlock_t *pgt_lock;
237 pmd_t *ret;
238
239 /* the pgt_lock only for Xen */
241 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
242
243 spin_lock(pgt_lock);
244 ret = vmalloc_sync_one(page_address(page), address);
245 spin_unlock(pgt_lock);
246
247 if (!ret)
248 break;
249 }
240 pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
241
242 spin_lock(pgt_lock);
243 ret = vmalloc_sync_one(page_address(page), address);
244 spin_unlock(pgt_lock);
245
246 if (!ret)
247 break;
248 }
250 spin_unlock_irqrestore(&pgd_lock, flags);
249 spin_unlock(&pgd_lock);
251 }
252}
253
254/*
255 * 32-bit:
256 *
257 * Handle a fault on the vmalloc or module mapping area
258 */

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251}
252
253/*
254 * 32-bit:
255 *
256 * Handle a fault on the vmalloc or module mapping area
257 */

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