On Fri, Oct 14, 2011 at 03:14:34PM -0400, Mikulas Patocka wrote:
> Hi
>
> This is a patch for dm-bufio.
I've merged all I'm going to at this point and pushed to thin-dev.
If you put together a patch for the cond_resched stuff I'll take that;
providing you don't call it in a tight loop like here:
> @@ -758,8 +772,9 @@ static struct dm_buffer *__find(struct d
> struct dm_buffer *b;
> struct hlist_node *hn;
> hlist_for_each_entry(b, hn, &c->cache_hash[DM_BUFIO_HASH(block)], hash_list) {
> - if (b->block == block)
> + if (likely(b->block == block))
> return b;
> + dm_bufio_cond_resched();
> }
I'm not really interested in the likely/unlikely annotations.
- Joe
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