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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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