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SubjectRe: New filesystem for Linux
On Sat, 4 Nov 2006, Mikulas Patocka wrote:
>> > If it overflows, it increases crash count instead. So really you have
>> > 2^47
>> > transactions or 65536 crashes and 2^31 transactions between each crash.
>>
>> it seems to me that you only need to be able to represent a range of the
>> most recent 65536 crashes... and could have an online process which goes
>> about "refreshing" old objects to move them forward to the most recent
>> crash state. as long as you know the minimm on-disk crash count you can
>> use it as an offset.
>
> After 65536 crashes you have to run spadfsck --reset-crash-counts. Maybe I
> add that functionality to kernel driver too, so that it will be formally
> corect.

Is there any reason you can not make these fields 64 or even 128 bits in
size to increase these "limits" dramatically?


Thanks,

Grzegorz Kulewski

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