f2fs: fix incorrect bimodal calculation
In update_sit_info, we use div_u64 to handle 'u64 divide u64' case, but div_u64 can only handle 32-bits divisor, so our divisor with u64 type passed to div_u64 will overflow, result in the wrong calculation when show debug info of f2fs as below: BDF: 464, avg. vblocks: 23509 (BDF should never exceed 100) So change to use div64_u64 to handle this case correctly. Signed-off-by: NChao Yu <chao2.yu@samsung.com> Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
Showing
想要评论请 注册 或 登录