overlayfs: make use of ->free_inode()

synchronous parts are left in ->destroy_inode()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 6 insertions, 7 deletions

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 0116735cc321..5ec4fc2f5d7e 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -190,11 +190,13 @@ static struct inode *ovl_alloc_inode(struct super_block *sb)
         return &oi->vfs_inode;
 }
 
-static void ovl_i_callback(struct rcu_head *head)
+static void ovl_free_inode(struct inode *inode)
 {
-        struct inode *inode = container_of(head, struct inode, i_rcu);
+        struct ovl_inode *oi = OVL_I(inode);
 
-        kmem_cache_free(ovl_inode_cachep, OVL_I(inode));
+        kfree(oi->redirect);
+        mutex_destroy(&oi->lock);
+        kmem_cache_free(ovl_inode_cachep, oi);
 }
 
 static void ovl_destroy_inode(struct inode *inode)
@@ -207,10 +209,6 @@ static void ovl_destroy_inode(struct inode *inode)
                 ovl_dir_cache_free(inode);
         else
                 iput(oi->lowerdata);
-        kfree(oi->redirect);
-        mutex_destroy(&oi->lock);
-
-        call_rcu(&inode->i_rcu, ovl_i_callback);
 }
 
 static void ovl_free_fs(struct ovl_fs *ofs)
@@ -377,6 +375,7 @@ static int ovl_remount(struct super_block *sb, int *flags, char *data)
 
 static const struct super_operations ovl_super_operations = {
         .alloc_inode    = ovl_alloc_inode,
+        .free_inode     = ovl_free_inode,
         .destroy_inode  = ovl_destroy_inode,
         .drop_inode     = generic_delete_inode,
         .put_super      = ovl_put_super,