Messages in this thread |  | | Date | Fri, 5 Oct 2001 16:38:07 +0200 | From | Andi Kleen <> | Subject | Re: Finegrained a/c/mtime was Re: Directory notification problem |
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> >Another advantage of using the real time instead of a counter is that > >you can easily merge the both values into a single 64bit value and do > >arithmetic on it in user space. With a generation counter you would need > >to work with number pairs, which is much more complex. > > > ?? > if (file->mtime != mtime || file->gen_count != gen_count) > file_changed=1;
And how would you implement "newer than" and "older than" with a generation count that doesn't reset in a always fixed time interval (=requiring additional timestamps in kernel)?
-Andi
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