From af1274bfe7336f55b7c6a76b2e69f210f258c2a6 Mon Sep 17 00:00:00 2001
From: Michael Schnerring <3743342+schnerring@users.noreply.github.com>
Date: Sat, 6 Jan 2024 02:11:24 +0000
Subject: [PATCH] Fix piece selection algorithm in docs (#524)

---
 book/src/bittorrent/piece-length.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/book/src/bittorrent/piece-length.md b/book/src/bittorrent/piece-length.md
index 620cdacb..522907ac 100644
--- a/book/src/bittorrent/piece-length.md
+++ b/book/src/bittorrent/piece-length.md
@@ -58,7 +58,7 @@ MIN = 16 * 1024
 MAX = 16 * 1024 * 1024
 
 def piece_length(content_length):
-  exponent = math.log2(content_length)
+  exponent = math.ceil(math.log2(content_length))
   length = 1 << int((exponent / 2 + 4))
   return min(max(length, MIN), MAX)
 ```