1 files changed, 4 insertions, 7 deletions

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index e6410d8edd0e..f5b8f329aca6 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -34,7 +34,7 @@
 #define HUGETLBFS_MAGIC 0x958458f6
 
 static struct super_operations hugetlbfs_ops;
-static struct address_space_operations hugetlbfs_aops;
+static const struct address_space_operations hugetlbfs_aops;
 const struct file_operations hugetlbfs_file_operations;
 static struct inode_operations hugetlbfs_dir_inode_operations;
 static struct inode_operations hugetlbfs_inode_operations;
@@ -83,8 +83,6 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 
         ret = -ENOMEM;
         len = vma_len + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
-        if (!(vma->vm_flags & VM_WRITE) && len > inode->i_size)
-                goto out;
 
         if (vma->vm_flags & VM_MAYSHARE &&
             hugetlb_reserve_pages(inode, vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT),
@@ -93,7 +91,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 
         ret = 0;
         hugetlb_prefault_arch_hook(vma->vm_mm);
-        if (inode->i_size < len)
+        if (vma->vm_flags & VM_WRITE && inode->i_size < len)
                 inode->i_size = len;
 out:
         mutex_unlock(&inode->i_mutex);
@@ -231,7 +229,7 @@ static void hugetlbfs_delete_inode(struct inode *inode)
         clear_inode(inode);
 }
 
-static void hugetlbfs_forget_inode(struct inode *inode)
+static void hugetlbfs_forget_inode(struct inode *inode) __releases(inode_lock)
 {
         struct super_block *sb = inode->i_sb;
 
@@ -359,7 +357,6 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
                 inode->i_mode = mode;
                 inode->i_uid = uid;
                 inode->i_gid = gid;
-                inode->i_blksize = HPAGE_SIZE;
                 inode->i_blocks = 0;
                 inode->i_mapping->a_ops = &hugetlbfs_aops;
                 inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
@@ -547,7 +544,7 @@ static void hugetlbfs_destroy_inode(struct inode *inode)
         kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
 }
 
-static struct address_space_operations hugetlbfs_aops = {
+static const struct address_space_operations hugetlbfs_aops = {
         .readpage       = hugetlbfs_readpage,
         .prepare_write  = hugetlbfs_prepare_write,
         .commit_write   = hugetlbfs_commit_write,