diff options
Diffstat (limited to 'arch/s390/mm/pgtable.c')
| -rw-r--r-- | arch/s390/mm/pgtable.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index c7021524707..2757c5616a0 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -279,7 +279,10 @@ int s390_enable_sie(void) /* lets check if we are allowed to replace the mm */ task_lock(tsk); if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 || - tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) { +#ifdef CONFIG_AIO + !hlist_empty(&tsk->mm->ioctx_list) || +#endif + tsk->mm != tsk->active_mm) { task_unlock(tsk); return -EINVAL; } @@ -295,7 +298,10 @@ int s390_enable_sie(void) /* Now lets check again if something happened */ task_lock(tsk); if (!tsk->mm || atomic_read(&tsk->mm->mm_users) > 1 || - tsk->mm != tsk->active_mm || !hlist_empty(&tsk->mm->ioctx_list)) { +#ifdef CONFIG_AIO + !hlist_empty(&tsk->mm->ioctx_list) || +#endif + tsk->mm != tsk->active_mm) { mmput(mm); task_unlock(tsk); return -EINVAL; @@ -314,21 +320,18 @@ int s390_enable_sie(void) } EXPORT_SYMBOL_GPL(s390_enable_sie); -#ifdef CONFIG_DEBUG_PAGEALLOC -#ifdef CONFIG_HIBERNATION +#if defined(CONFIG_DEBUG_PAGEALLOC) && defined(CONFIG_HIBERNATION) bool kernel_page_present(struct page *page) { unsigned long addr; int cc; addr = page_to_phys(page); - asm("lra %1,0(%1)\n" - "ipm %0\n" - "srl %0,28" - :"=d"(cc),"+a"(addr)::"cc"); + asm volatile( + " lra %1,0(%1)\n" + " ipm %0\n" + " srl %0,28" + : "=d" (cc), "+a" (addr) : : "cc"); return cc == 0; } - -#endif /* CONFIG_HIBERNATION */ -#endif /* CONFIG_DEBUG_PAGEALLOC */ - +#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */ |