Re: fsync in glib/gio

[Colin Walters <walters verbum org>]

2009/3/12 Alexander Larsson <alexl redhat com>:
> With all the recent yahoo about ext4 data loss and fsync I felt I had to
> look at glib and make sure we're doing this right.
>
> Attached is a patch that makes sure we fsync before closing in the gio
> file saving code and in g_file_set_contents().
>
> It also adds G_FILE_CREATE_ASYNC_WRITE flag to disable the fsync in the
> gio saving code. This is used in the file copy code as I think the fsync
> may significantly affect performance when copying lots of files. This is
> similar to cp, which also doesn't fsync, so I think this is a decent
> compromise. At least we do the safe thing when apps save a document.

Does this affect things like nautilus bulk file operations (copy+paste
directory)?  If so, is there a patch for nautilus to use the new flag,
or are we saying that these operations should also be sync?