From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Fri, 17 Feb 2023 20:36:46 +0000 (-0500)
Subject: bcachefs: Fix a 64 bit divide
X-Git-Tag: io_uring-6.7-2023-11-10~119^2~510
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=564fbd9dd6329abde8aca143da26ffbada13ff7d;p=linux-block.git

bcachefs: Fix a 64 bit divide

This fixes a build failure on 32 bit

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/backpointers.c b/fs/bcachefs/backpointers.c
index c269fc73a41d..e001f4191671 100644
--- a/fs/bcachefs/backpointers.c
+++ b/fs/bcachefs/backpointers.c
@@ -738,7 +738,7 @@ static size_t btree_nodes_fit_in_ram(struct bch_fs *c)
 
 	si_meminfo(&i);
 	mem_bytes = i.totalram * i.mem_unit;
-	return (mem_bytes >> 1) / btree_bytes(c);
+	return div_u64(mem_bytes >> 1, btree_bytes(c));
 }
 
 int bch2_get_btree_in_memory_pos(struct btree_trans *trans,