On 2018/5/26 3:49, Jaegeuk Kim wrote: > The fstrim gathers huge number of large discard commands, and tries to issue > without IO awareness, which results in long user-perceive IO latencies on > READ, WRITE, and FLUSH in UFS. We've observed some of commands take several > seconds due to long discard latency. > > This patch limits the maximum size to 2MB per candidate, and check IO > congestion > when issuing them to disk. > > Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
It looks good to me. :) Reviewed-by: Chao Yu <yuch...@huawei.com> Thanks,
