diff options
Diffstat (limited to 'arch/x86/mm/fault.c')
| -rw-r--r-- | arch/x86/mm/fault.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index a51df516b87b..edeb2adaf31f 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -190,16 +190,13 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) return pmd_k; } -static void vmalloc_sync(void) +void arch_sync_kernel_mappings(unsigned long start, unsigned long end) { - unsigned long address; - - if (SHARED_KERNEL_PMD) - return; + unsigned long addr; - for (address = VMALLOC_START & PMD_MASK; - address >= TASK_SIZE_MAX && address < VMALLOC_END; - address += PMD_SIZE) { + for (addr = start & PMD_MASK; + addr >= TASK_SIZE_MAX && addr < VMALLOC_END; + addr += PMD_SIZE) { struct page *page; spin_lock(&pgd_lock); @@ -210,13 +207,23 @@ static void vmalloc_sync(void) pgt_lock = &pgd_page_get_mm(page)->page_table_lock; spin_lock(pgt_lock); - vmalloc_sync_one(page_address(page), address); + vmalloc_sync_one(page_address(page), addr); spin_unlock(pgt_lock); } spin_unlock(&pgd_lock); } } +static void vmalloc_sync(void) +{ + unsigned long address; + + if (SHARED_KERNEL_PMD) + return; + + arch_sync_kernel_mappings(VMALLOC_START, VMALLOC_END); +} + void vmalloc_sync_mappings(void) { vmalloc_sync(); |