eCryptfs: initialize persistent lower file on inode create

Initialize persistent lower file on inode create.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 6 deletions

diff --git a/fs/ecryptfs/super.c b/fs/ecryptfs/super.c
index b97e2106f670..f8cdab2bee3d 100644
--- a/fs/ecryptfs/super.c
+++ b/fs/ecryptfs/super.c
@@ -47,15 +47,16 @@ struct kmem_cache *ecryptfs_inode_info_cache;
  */
 static struct inode *ecryptfs_alloc_inode(struct super_block *sb)
 {
-        struct ecryptfs_inode_info *ecryptfs_inode;
+        struct ecryptfs_inode_info *inode_info;
         struct inode *inode = NULL;
 
-        ecryptfs_inode = kmem_cache_alloc(ecryptfs_inode_info_cache,
-                                          GFP_KERNEL);
-        if (unlikely(!ecryptfs_inode))
+        inode_info = kmem_cache_alloc(ecryptfs_inode_info_cache, GFP_KERNEL);
+        if (unlikely(!inode_info))
                 goto out;
-        ecryptfs_init_crypt_stat(&ecryptfs_inode->crypt_stat);
-        inode = &ecryptfs_inode->vfs_inode;
+        ecryptfs_init_crypt_stat(&inode_info->crypt_stat);
+        mutex_init(&inode_info->lower_file_mutex);
+        inode_info->lower_file = NULL;
+        inode = &inode_info->vfs_inode;
 out:
         return inode;
 }