mm: bdi init hooks

provide BDI constructor/destructor hooks

[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c
index 7418dc83de1c..1150412758ac 100644
--- a/fs/ocfs2/dlm/dlmfs.c
+++ b/fs/ocfs2/dlm/dlmfs.c
@@ -588,13 +588,17 @@ static int __init init_dlmfs_fs(void)
 
         dlmfs_print_version();
 
+        status = bdi_init(&dlmfs_backing_dev_info);
+        if (status)
+                return status;
+
         dlmfs_inode_cache = kmem_cache_create("dlmfs_inode_cache",
                                 sizeof(struct dlmfs_inode_private),
                                 0, (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT|
                                         SLAB_MEM_SPREAD),
                                 dlmfs_init_once);
         if (!dlmfs_inode_cache)
-                return -ENOMEM;
+                goto bail;
         cleanup_inode = 1;
 
         user_dlm_worker = create_singlethread_workqueue("user_dlm");
@@ -611,6 +615,7 @@ bail:
                         kmem_cache_destroy(dlmfs_inode_cache);
                 if (cleanup_worker)
                         destroy_workqueue(user_dlm_worker);
+                bdi_destroy(&dlmfs_backing_dev_info);
         } else
                 printk("OCFS2 User DLM kernel interface loaded\n");
         return status;
@@ -624,6 +629,8 @@ static void __exit exit_dlmfs_fs(void)
         destroy_workqueue(user_dlm_worker);
 
         kmem_cache_destroy(dlmfs_inode_cache);
+
+        bdi_destroy(&dlmfs_backing_dev_info);
 }
 
 MODULE_AUTHOR("Oracle");