Commit 1a2b74d0 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcachefs: fix build on 32 bit in get_random_u64_below() 



bare 64 bit divides not allowed, whoops

arm-linux-gnueabi-ld: drivers/char/random.o: in function `__get_random_u64_below':
drivers/char/random.c:602:(.text+0xc70): undefined reference to `__aeabi_uldivmod'

Signed-off-by: default avatarKent Overstreet <kent.overstreet@linux.dev>
parent 90fd9ad5

fs/bcachefs/util.c

+2 −1
Original line number Diff line number Diff line
@@ -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;