fsck.f2fs: use elapsed_time in checkpoint for period check
We now use walltime for monthly period check. However the walltime is:
* unstable(timestamp register reset) and settable(modified by user)
* unreasonable(e.g: device power-off for one month, no data changed)
When the walltime changes to the past before one month or the future
after one month, the period check in next fsck will fail to skip or
start a full scan. So, let's use the elapsed_time in checkpoint as
current time for period check.
Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
1 file changed
