Merge tag 'xfs-4.17-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fix from Darrick Wong:
 "Clear out i_mapping error state when we're reinitializing inodes.

  This last minute fix prevents writeback error state from persisting
  past the end of the in-core inode lifecycle and causing EIO errors to
  be reported to userspace when no error has occurred.

  This fix for the behavioral regression has been soaking in for-next
  for a while, but various fs developers persuaded me to try to get it
  upstream for 4.17 because the patch that broke things was introduced
  in 4.17-rc4"

* tag 'xfs-4.17-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fs: clear writeback errors in inode_init_always

fs/inode.c

@@ -178,6 +178,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
 	mapping->a_ops = &empty_aops;
 	mapping->host = inode;
 	mapping->flags = 0;
+	mapping->wb_err = 0;
 	atomic_set(&mapping->i_mmap_writable, 0);
 	mapping_set_gfp_mask(mapping, GFP_HIGHUSER_MOVABLE);
 	mapping->private_data = NULL;