Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits)
  Btrfs: don't use migrate page without CONFIG_MIGRATION
  Btrfs: deal with DIO bios that span more than one ordered extent
  Btrfs: setup blank root and fs_info for mount time
  Btrfs: fix fiemap
  Btrfs - fix race between btrfs_get_sb() and umount
  Btrfs: update inode ctime when using links
  Btrfs: make sure new inode size is ok in fallocate
  Btrfs: fix typo in fallocate to make it honor actual size
  Btrfs: avoid NULL pointer deref in try_release_extent_buffer
  Btrfs: make btrfs_add_nondir take parent inode as an argument
  Btrfs: hold i_mutex when calling btrfs_log_dentry_safe
  Btrfs: use dget_parent where we can UPDATED
  Btrfs: fix more ESTALE problems with NFS
  Btrfs: handle NFS lookups properly
  btrfs: make 1-bit signed fileds unsigned
  btrfs: Show device attr correctly for symlinks
  btrfs: Set file size correctly in file clone
  btrfs: Check if dest_offset is block-size aligned before cloning file
  Btrfs: handle the space_cache option properly
  btrfs: Fix early enospc because 'unused' calculated with wrong sign.
  ...

diff --cc fs/btrfs/disk-io.c
Simple merge

diff --cc fs/btrfs/extent-tree.c
Simple merge

diff --cc fs/btrfs/extent_io.c
Simple merge

diff --cc fs/btrfs/inode.c
index 558cac2,0f34cae..8039390
--- 1/fs/btrfs/inode.c
--- 2/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@@ -4803,9 -4802,9 +4802,9 @@@ static int btrfs_link(struct dentry *ol
        }
  
        btrfs_set_trans_block_group(trans, dir);
 -      atomic_inc(&inode->i_count);
 +      ihold(inode);
  
-       err = btrfs_add_nondir(trans, dentry, inode, 1, index);
+       err = btrfs_add_nondir(trans, dir, dentry, inode, 1, index);
  
        if (err) {
                drop_inode = 1;

diff --cc fs/btrfs/super.c
index 8299a25,47bf67c..dbb51ea
--- 1/fs/btrfs/super.c
--- 2/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@@ -675,9 -711,11 +708,11 @@@ error_s
        error = PTR_ERR(s);
  error_close_devices:
        btrfs_close_devices(fs_devices);
+       kfree(fs_info);
+       kfree(tree_root);
  error_free_subvol_name:
        kfree(subvol_name);
 -      return error;
 +      return ERR_PTR(error);
  }
  
  static int btrfs_remount(struct super_block *sb, int *flags, char *data)