summaryrefslogtreecommitdiff
path: root/include/linux
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/mm_types.h5
-rw-r--r--include/linux/pgtable.h6
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 08bc2442db93..a643fae8a349 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -631,6 +631,11 @@ static inline int ptdesc_pmd_pts_count(struct ptdesc *ptdesc)
{
return atomic_read(&ptdesc->pt_share_count);
}
+
+static inline bool ptdesc_pmd_is_shared(struct ptdesc *ptdesc)
+{
+ return !!ptdesc_pmd_pts_count(ptdesc);
+}
#else
static inline void ptdesc_pmd_pts_init(struct ptdesc *ptdesc)
{
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 2b80fd456c8b..25a7257052ff 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -232,9 +232,9 @@ static inline int pmd_dirty(pmd_t pmd)
* and the mode cannot be used in interrupt context.
*/
#ifndef __HAVE_ARCH_ENTER_LAZY_MMU_MODE
-#define arch_enter_lazy_mmu_mode() do {} while (0)
-#define arch_leave_lazy_mmu_mode() do {} while (0)
-#define arch_flush_lazy_mmu_mode() do {} while (0)
+static inline void arch_enter_lazy_mmu_mode(void) {}
+static inline void arch_leave_lazy_mmu_mode(void) {}
+static inline void arch_flush_lazy_mmu_mode(void) {}
#endif
#ifndef pte_batch_hint