Hi, new patch series, addressing (both) issues raised by Bart [1]. Thanks, Paolo [1] https://lkml.org/lkml/2017/3/31/393 Arianna Avanzini (4): block, bfq: add full hierarchical scheduling and cgroups support block, bfq: add Early Queue Merge (EQM) block, bfq: reduce idling only in symmetric scenarios block, bfq: handle bursts of queue activations Paolo Valente (12): block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler block, bfq: improve throughput boosting block, bfq: modify the peak-rate estimator block, bfq: add more fairness with writes and slow processes block, bfq: improve responsiveness block, bfq: reduce I/O latency for soft real-time applications block, bfq: preserve a low latency also with NCQ-capable drives block, bfq: reduce latency during request-pool saturation block, bfq: boost the throughput on NCQ-capable flash-based devices block, bfq: boost the throughput with random I/O on NCQ-capable HDDs block, bfq: remove all get and put of I/O contexts block, bfq: split bfq-iosched.c into multiple source files Documentation/block/00-INDEX | 2 + Documentation/block/bfq-iosched.txt | 531 ++++ block/Kconfig.iosched | 21 + block/Makefile | 1 + block/bfq-cgroup.c | 1139 ++++++++ block/bfq-iosched.c | 5047 +++++++++++++++++++++++++++++++++++ block/bfq-iosched.h | 942 +++++++ block/bfq-wf2q.c | 1616 +++++++++++ include/linux/blkdev.h | 2 +- 9 files changed, 9300 insertions(+), 1 deletion(-) create mode 100644 Documentation/block/bfq-iosched.txt create mode 100644 block/bfq-cgroup.c create mode 100644 block/bfq-iosched.c create mode 100644 block/bfq-iosched.h create mode 100644 block/bfq-wf2q.c -- 2.10.0