RE: [PATCH 0/2] make all stored entries accessible.

From: Luck, Tony
Date: Thu Oct 31 2013 - 16:22:50 EST

>> 1. combine timestamp, count and part into "id".
>> for now, in efi-pstore.c, *id = part. and we could simply change it
>> to unique one. F.E. *id = (timestamp * 100 + part) * 100 + count.
> My opinion close to 1.
> But, the "*id" should not be the complex one like (timestamp * 100 + part) * 100 + count.
> Rather, it should be a simple sequential number beginning with 1.

I also like option 1 ... but I think the "id" should be a persistent value for
a given saved record. So some func(timestamp, part, count) would be a
good idea. If we try using "sequential" numbers - and don't manage to
clear out /sys/fs/pstore each time - then we may have the same "dmesg"
file show up with different names on each boot.

Right now I have a simple script to save & clear ... not much more
complex than:

cd /sys/fs/pstore
cp * /var/log/save-pstore
rm *

This depends on not re-using filenames (otherwise new files in pstore
might overwrite older saved files in my /var/log/save-pstore area).

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