On Wed, 30 Sep 2020 09:10:02 -0700 David Awogbemila wrote:

quoted

What if the queue runs completely dry during memory shortage?
You need some form of delayed work to periodically refill
the free buffers, right?  

Thanks, this looks like it will require modifications that will need
to be well tested.
Just for my own curiosity, how common of an occurrence are such memory
shortages?

Depends on the workload. For some apps they are very common.