Re: Bug#605009: serious performance regression with ext4
Olaf van der Spek writes ("Re: Bug#605009: serious performance regression with ext4"):
> Probably not an issue for dpkg, but in general:
> Don't you reset meta-data that way?
Yes. If you want to keep the metadata you must copy it.
> Require a second file (name), permission to write to it and assume
> it's on the same volume?
It will be on the same volume because it's in the same directory.
This is the standard way that ordinary files for which reliability was
important have been updated on Unix for decades. fsync is for files
which need synchronisation with things external to the computer (or at
least, external to the volume) - eg, email at final dot.
Ian.
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