Re: [RFC PATCH 04/10] pipe: Use head and tail pointers for the ring, not cursor and length [ver #2]
From: David Howells
Date: Thu Oct 31 2019 - 11:11:40 EST
How about:
* We use head and tail indices that aren't masked off, except at the
* point of dereference, but rather they're allowed to wrap naturally.
* This means there isn't a dead spot in the buffer, provided the ring
* size is a power of two and <= 2^31.
David