RE: [PATCH] Make efi-pstore return a unique id

[Seiji Aguchi]

> Then will lost the sequence of our log. We will get lots of entries like
> "dmesg-efi-`unique but meaningless number here`" in pstore fs. Who will
> know which file is the latest record?

Ah, that's good point.

> And another side, the combin of timestamp, count and part is unique. Why
> we generate a unique number from a unique number?
> if you think "making a string from three ints and then a parse it to a
> int again" is odd, i'd like to use ((timestamp * 100 + part) * 100 +
> count.

How about calculating the number of digit of part /count, instead of using fixed "100"?
We can ensure the uniqueness of each id by doing it.

digit_num = log2(part)/log2(10) + 1
timestamp * 10^(digit_num + 1)

Seiji
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