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-rw-r--r--arch/x86/mm/fault.c5
-rw-r--r--include/asm-x86/pgalloc_64.h10
2 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index d8ed4006b3d2..621afb6343dc 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -958,11 +958,12 @@ void vmalloc_sync_all(void)
for (address = start; address <= VMALLOC_END; address += PGDIR_SIZE) {
if (!test_bit(pgd_index(address), insync)) {
const pgd_t *pgd_ref = pgd_offset_k(address);
+ unsigned long flags;
struct page *page;
if (pgd_none(*pgd_ref))
continue;
- spin_lock(&pgd_lock);
+ spin_lock_irqsave(&pgd_lock, flags);
list_for_each_entry(page, &pgd_list, lru) {
pgd_t *pgd;
pgd = (pgd_t *)page_address(page) + pgd_index(address);
@@ -971,7 +972,7 @@ void vmalloc_sync_all(void)
else
BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
}
- spin_unlock(&pgd_lock);
+ spin_unlock_irqrestore(&pgd_lock, flags);
set_bit(pgd_index(address), insync);
}
if (address == start)
diff --git a/include/asm-x86/pgalloc_64.h b/include/asm-x86/pgalloc_64.h
index 315314ce4bfb..4f6220db22b1 100644
--- a/include/asm-x86/pgalloc_64.h
+++ b/include/asm-x86/pgalloc_64.h
@@ -42,19 +42,21 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud)
static inline void pgd_list_add(pgd_t *pgd)
{
struct page *page = virt_to_page(pgd);
+ unsigned long flags;
- spin_lock(&pgd_lock);
+ spin_lock_irqsave(&pgd_lock, flags);
list_add(&page->lru, &pgd_list);
- spin_unlock(&pgd_lock);
+ spin_unlock_irqrestore(&pgd_lock, flags);
}
static inline void pgd_list_del(pgd_t *pgd)
{
struct page *page = virt_to_page(pgd);
+ unsigned long flags;
- spin_lock(&pgd_lock);
+ spin_lock_irqsave(&pgd_lock, flags);
list_del(&page->lru);
- spin_unlock(&pgd_lock);
+ spin_unlock_irqrestore(&pgd_lock, flags);
}
static inline pgd_t *pgd_alloc(struct mm_struct *mm)