bcachefs: Convert open-coded extra computation to helper

This patch replaces open-coded extra computation to eytzinger1_extra.

Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Alan Huang 2024-08-11 00:11:46 +08:00 • committed by Kent Overstreet
commit 288a6690eb