On Thu, 2017-11-09 at 16:00 -0700, Jens Axboe wrote:
> + spin_lock(&this_hctx->lock);
> + if (!list_empty(&wait->entry)) {
> + spin_unlock(&this_hctx->lock);
> + return false;
> + }
>
> - ws = bt_wait_ptr(&this_hctx->
On Thu, Nov 09, 2017 at 04:00:09PM -0700, Jens Axboe wrote:
> If we run out of driver tags, we currently treat shared and non-shared
> tags the same - both cases hook into the tag waitqueue. This is a bit
> more costly than it needs to be on unshared tags, since we have to both
> grab the hctx lock
