Re: Making ostree robust wrt concurrent use

[Colin Walters <walters verbum org>]

On Mon, Dec 14, 2015, at 04:37 AM, Alexander Larsson wrote:

> I think we still need some kind of guarantee though. For instance, we
> don't want to update the ref file to point to a commit before we're
> fully sure that all the objects that were involved in the transaction
> has been commited to disk. So we need to fsync all the individual
> objetct directories after the renames before writing the refs.

FTR, we today do:

ostree_repo_commit_transaction() ->
  syncfs (self->tmp_dir_fd)