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>

diff --git a/fs/bcachefs/bset.c b/fs/bcachefs/bset.c
index 59158eb6d41f0607dda53fb018a586f71063b43b..00a821f617a557ad7293e07e84ff9754f5037269 100644 (file)
--- a/fs/bcachefs/bset.c
+++ b/fs/bcachefs/bset.c
@@ -732,7 +732,7 @@ retry:
                return;
        }
 
-       t->extra = (t->size - rounddown_pow_of_two(t->size - 1)) << 1;
+       t->extra = eytzinger1_extra(t->size - 1);
 
        /* First we figure out where the first key in each cacheline is */
        eytzinger1_for_each(j, t->size - 1) {