bcachefs: Fix a shift greater than type size

Found by UBSAN

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2021-02-11 14:49:36 -05:00 • committed by Kent Overstreet
commit 9d40326176