Messages in this thread | | | From | Seiji Aguchi <> | Subject | RE: [PATCH] Make efi-pstore return a unique id | Date | Wed, 20 Nov 2013 15:17:55 +0000 |
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> 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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