Some questions regarding buffer rings

[noteflakes]

Hi, I'm exploring the use of buffer rings for sending and receiving bundles. I have a couple of questions:

1. Do buffers added to the buffer ring have to be page-aligned or can I use non-aligned buffers as well?
2. Is there a possibility to remove buffers from a buffer ring? The use case I'm aiming for is being able to reuse a buffer ring for sending bundles. In the case of an error, or incomplete send, the buffer ring might still contain buffer entries. If I want to reuse it for sending bundles, I'll need to first remove all existing buffers from the ring. Or am I missing anything?

Thanks

[axboe]

1. Buffers do not have to be aligned to anything other than what the normal request would require. For send/recv, there are no alignment restrictions.
2. If whatever send(s) you have using the ring are not active, then you can manipulate the ring entries as you see fit.