1 files changed, 7 insertions, 7 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 1e2872b25343..5eba47f593f8 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -412,10 +412,10 @@ static int hugetlb_vmtruncate(struct inode *inode, loff_t offset)
         pgoff = offset >> PAGE_SHIFT;
 
         i_size_write(inode, offset);
-        mutex_lock(&mapping->i_mmap_mutex);
+        i_mmap_lock_write(mapping);
         if (!RB_EMPTY_ROOT(&mapping->i_mmap))
                 hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff);
-        mutex_unlock(&mapping->i_mmap_mutex);
+        i_mmap_unlock_write(mapping);
         truncate_hugepages(inode, offset);
         return 0;
 }
@@ -472,12 +472,12 @@ static struct inode *hugetlbfs_get_root(struct super_block *sb,
 }
 
 /*
- * Hugetlbfs is not reclaimable; therefore its i_mmap_mutex will never
+ * Hugetlbfs is not reclaimable; therefore its i_mmap_rwsem will never
  * be taken from reclaim -- unlike regular filesystems. This needs an
  * annotation because huge_pmd_share() does an allocation under
- * i_mmap_mutex.
+ * i_mmap_rwsem.
  */
-static struct lock_class_key hugetlbfs_i_mmap_mutex_key;
+static struct lock_class_key hugetlbfs_i_mmap_rwsem_key;
 
 static struct inode *hugetlbfs_get_inode(struct super_block *sb,
                                         struct inode *dir,
@@ -495,8 +495,8 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb,
                 struct hugetlbfs_inode_info *info;
                 inode->i_ino = get_next_ino();
                 inode_init_owner(inode, dir, mode);
-                lockdep_set_class(&inode->i_mapping->i_mmap_mutex,
-                                &hugetlbfs_i_mmap_mutex_key);
+                lockdep_set_class(&inode->i_mapping->i_mmap_rwsem,
+                                &hugetlbfs_i_mmap_rwsem_key);
                 inode->i_mapping->a_ops = &hugetlbfs_aops;
                 inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
                 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;