Quota consistency/races

[sh at bel.bc.ca (Sean Hamilton)]

Greetings,

What measures are in place to ensure disk quota consistency? For instance,
if a part of the filesystem changes while running quotacheck, I imagine that
does not get accounted for.

Wouldn't somebody have trouble enabling quotas on a busy filesystem? The
quota file would always lag behind the actual filesystem, and one cannot
mount read-only because quotacheck must write the quota file.

sh