When setting bcache parameters via sysfs interface, current code has potential overflow and results unexpected value got set. Once such condition happens, it is very hard to find out in product environment. This patch set is an effort to fix such overflow, to avoid further unpected problems. Coly Li --- Coly Li (11): bcache: fix input integer overflow of congested threshold bcache: fix input overflow to sequential_cutoff bcache: add sysfs_strtoul_bool() for setting bit-field variables bcache: use sysfs_strtoul_bool() to set bit-field variables bcache: fix input overflow to writeback_delay bcache: fix potential div-zero error of writeback_rate_i_term_inverse bcache: fix potential div-zero error of writeback_rate_p_term_inverse bcache: fix input overflow to writeback_rate_minimum bcache: fix input overflow to journal_delay_ms bcache: fix input overflow to cache set io_error_limit bcache: fix input overflow to cache set sysfs file io_error_halflife drivers/md/bcache/sysfs.c | 61 ++++++++++++++++++++++++++++++----------------- drivers/md/bcache/sysfs.h | 10 ++++++++ 2 files changed, 49 insertions(+), 22 deletions(-) -- 2.16.4
