On Wed, 20 Aug 2008 22:08:02 +0200
Arne Redlich <agr@xxxxxxxxxxxxxx> wrote:
> > +struct scsi_pr {
> > + /* Persistent Reservation Generation */
> > + uint32_t PRgeneration;
> > + uint8_t pr_key[PR_RESERVATION_SZ][PR_KEY_SZ];
> > +};
> > +
>
> Too bad the most interesting part is missing - an efficient way to
> lookup the registered keys. I could imagine using a hashtable, but then
> again finding a good hash function is not easy - (u64)key % tablesize
> possibly? So:
I guess that we might need a hash table plus something.
I don't care much about the PR performance (for now at least) as long
as users who don't use PR don't suffer performance drop.
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