hmm: use mmu_notifier_get/put for 'struct hmm'

[linux-2.6-microblaze.git] / include / linux / hmm.h

diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 51e18fb..3fec513 100644 (file)
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -84,15 +84,12 @@
  * @notifiers: count of active mmu notifiers
  */
 struct hmm {
-       struct mm_struct        *mm;
-       struct kref             kref;
+       struct mmu_notifier     mmu_notifier;
        spinlock_t              ranges_lock;
        struct list_head        ranges;
        struct list_head        mirrors;
-       struct mmu_notifier     mmu_notifier;
        struct rw_semaphore     mirrors_sem;
        wait_queue_head_t       wq;
-       struct rcu_head         rcu;
        long                    notifiers;
 };
 
@@ -409,13 +406,6 @@ long hmm_range_dma_unmap(struct hmm_range *range,
  */
 #define HMM_RANGE_DEFAULT_TIMEOUT 1000
 
-/* Below are for HMM internal use only! Not to be used by device driver! */
-static inline void hmm_mm_init(struct mm_struct *mm)
-{
-       mm->hmm = NULL;
-}
-#else /* IS_ENABLED(CONFIG_HMM_MIRROR) */
-static inline void hmm_mm_init(struct mm_struct *mm) {}
 #endif /* IS_ENABLED(CONFIG_HMM_MIRROR) */
 
 #endif /* LINUX_HMM_H */