This series tries to reduce the amount we hold the ilock exclusively, especially during direct I/O writes where they currently hurt us. Dave showed that his earlier version which is less aggressive than this one can already provide magnitudes of better throughput and iops for parallel direct I/O workloads, and this one should be even better. Changes from V1: - do not mark xfs_qm_need_dqattach as inline - various comment and commit message updates I specificly did not add the delalloc assert in the direct I/O write path in this series, as it triggers with or without this patch. I will look into that issue next. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
