Hello! We have a heavy metadata related workload (ext4, quota journalling) and profiling shows that there's significant dqio_mutex contention. >From the quota code, it looks like every time dqio_mutex is taken it protects access to only one quota file. Is it possible to split dqio_mutex for each of MAXQUOTAS so that e.g. 2 parallel dquot_commit()'s can be running for user and group quota update? Am I missing any dqio_mutex function that requires dqio_mutex to be monolithic? Thank you, Andrew
