Why does it? Each file-system is self-contained with respect to hard
links. You cannot have link cross file system boundaries.
Common code can be placed into a library. (Probably 2.5 stuff though.)
As pointed out by Jan Harkes, logic that works for ext2 (eg. walking
the dentry chain and sync'ing all the components) sucks for things
like Coda, where the performance impact may be noticable (actually,
I'm not conviced it will be, but what do I know).
Not only that, it doesn't help qmail, cyrus imapd or Postfix
completely.
--cw
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