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-rw-r--r--fs/bcachefs/util.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/bcachefs/util.c b/fs/bcachefs/util.c
index 8e3ab4bf79a9..da2cd11b3025 100644
--- a/fs/bcachefs/util.c
+++ b/fs/bcachefs/util.c
@@ -663,7 +663,8 @@ u64 bch2_get_random_u64_below(u64 ceil)
u64 mult = ceil * rand;
if (unlikely(mult < ceil)) {
- u64 bound = -ceil % ceil;
+ u64 bound;
+ div64_u64_rem(-ceil, ceil, &bound);
while (unlikely(mult < bound)) {
rand = get_random_u64();
mult = ceil * rand;