afs: Log more information for "kAFS: AFS vnode with undefined type\n"

[sfrench/cifs-2.6.git] / fs / afs / inode.c

diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 3eef20ff285bc86e55c33c9ea4c443584875136e..0362cc7e1c7cd5c90491884c7ef61492621f9c2d 100644 (file)
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -29,10 +29,36 @@ static const struct inode_operations afs_symlink_inode_operations = {
        .listxattr      = afs_listxattr,
 };
 
+static noinline void dump_vnode(struct afs_vnode *vnode, struct afs_vnode *parent_vnode)
+{
+       static unsigned long once_only;
+
+       pr_warn("kAFS: AFS vnode with undefined type %u\n",
+               vnode->status.type);
+       pr_warn("kAFS: A=%d m=%o s=%llx v=%llx\n",
+               vnode->status.abort_code,
+               vnode->status.mode,
+               vnode->status.size,
+               vnode->status.data_version);
+       pr_warn("kAFS: vnode %llx:%llx:%x\n",
+               vnode->fid.vid,
+               vnode->fid.vnode,
+               vnode->fid.unique);
+       if (parent_vnode)
+               pr_warn("kAFS: dir %llx:%llx:%x\n",
+                       parent_vnode->fid.vid,
+                       parent_vnode->fid.vnode,
+                       parent_vnode->fid.unique);
+
+       if (!test_and_set_bit(0, &once_only))
+               dump_stack();
+}
+
 /*
  * Initialise an inode from the vnode status.
  */
-static int afs_inode_init_from_status(struct afs_vnode *vnode, struct key *key)
+static int afs_inode_init_from_status(struct afs_vnode *vnode, struct key *key,
+                                     struct afs_vnode *parent_vnode)
 {
        struct inode *inode = AFS_VNODE_TO_I(vnode);
 
@@ -80,7 +106,7 @@ static int afs_inode_init_from_status(struct afs_vnode *vnode, struct key *key)
                inode_nohighmem(inode);
                break;
        default:
-               printk("kAFS: AFS vnode with undefined type\n");
+               dump_vnode(vnode, parent_vnode);
                read_sequnlock_excl(&vnode->cb_lock);
                return afs_protocol_error(NULL, -EBADMSG, afs_eproto_file_type);
        }
@@ -270,7 +296,8 @@ static void afs_get_inode_cache(struct afs_vnode *vnode)
  */
 struct inode *afs_iget(struct super_block *sb, struct key *key,
                       struct afs_fid *fid, struct afs_file_status *status,
-                      struct afs_callback *cb, struct afs_cb_interest *cbi)
+                      struct afs_callback *cb, struct afs_cb_interest *cbi,
+                      struct afs_vnode *parent_vnode)
 {
        struct afs_iget_data data = { .fid = *fid };
        struct afs_super_info *as;
@@ -327,7 +354,7 @@ struct inode *afs_iget(struct super_block *sb, struct key *key,
                vnode->cb_expires_at += ktime_get_real_seconds();
        }
 
-       ret = afs_inode_init_from_status(vnode, key);
+       ret = afs_inode_init_from_status(vnode, key, parent_vnode);
        if (ret < 0)
                goto bad_inode;