On 5/24/18 10:52 AM, Omar Sandoval wrote:
On Thu, May 24, 2018 at 03:49:10PM +0800, Ming Lei wrote:
When the allocation process is scheduled back and the mapped hw queue is changed, fake one extra wake up on previous queue for compensating wake up miss, so other allocations on the previous queue won't be starved.
This patch fixes one request allocation hang issue, which can be triggered easily in case of very low nr_request.
Cc: stable@vger.kernel.org Cc: Omar Sandoval osandov@fb.com
Reviewed-by: Omar Sandoval osandov@fb.com
The longer explanation you gave would be nice to have in the commit message, but maybe Jens can add that when he applies it.
Exactly, I had planned on augmenting the commit message since I don't think the above really explains it. I'll do that and get it applied.