On 07/31/2013 08:25 PM, Jens Axboe wrote:
>> I want four pieces of data for bread crumbs:
>> o timestamp
>
> Don't have that, trivial to add.
Just went and looked at what we had for the meta verify. There is
actually already a timestamp there (sec + usec), and there's the notion
of a generation number as well (it includes what number write this was).
The structure looks like this:
struct vhdr_meta
{
uint64_t offset;
unsigned char thread;
unsigned short numberio;
unsigned long time_sec;
unsigned long time_usec;
};
Though the 'generation' number might have to be either used differently
that it is now, or made into a different type. The meta verify is also
the only one that isn't already 32 vs 64-bit agnostic.
--
Jens Axboe
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