Hi Matias, Here you have the pblk patchset for this window. Apart from small fixes for LightNVM core and pblk, there are three relevant changes: - Metadata for each line is no longer issued on a separate workqueue, but instead, all I/Os are scheduled on the write thread. This allows to have more control over LUN collisions. The result is that we can use the full bandwidth of the device for user data. In the 4.12 pblk, we use ~25% of the bandwidth for metadata. - The rate-limiter and GC have been tuned to keep the GC writer busy. Also, capacity per line is guaranteed for GC I/O as we reach capacity. - We have now a FTL state machine. This allows to fail gracefully to user space in case of irrecoverable errors. This state machine will be the base for the pblk's FTL log. The patches apply into your for-4.13/core. You can also find them in: https://github.com/OpenChannelSSD/linux.git pblk.for-4.13 Thanks, Javier Javier González (20): lightnvm: re-convert ppa format on I/O failure lightnvm: propagate right error code to target lightnvm: pblk: spare double cpu_to_le64 calc. lightnvm: pblk: add debug stat for read cache hits lightnvm: pblk: expose max sec per write on sysfs lightnvm: pblk: generalize erase path lightnvm: pblk: rename read request pool lightnvm: pblk: sched. metadata on write thread lightnvm: pblk: delete redundant debug line stat lightnvm: pblk: delete redundant buffer pointer lightnvm: pblk: issue multiplane reads if possible lightnvm: pblk: simplify meta. memory allocation lightnvm: pblk: decouple bad block from line alloc lightnvm: pblk: choose optimal victim GC line lightnvm: pblk: set metadata list for all I/Os lightnvm: pblk: cleanup unnecessary code lightnvm: pblk: add lock assertions on helpers lightnvm: pblk: redesign GC algorithm lightnvm: pblk: set mempool and workqueue params. lightnvm: pblk: fail gracefully on irrec. error drivers/lightnvm/core.c | 8 +- drivers/lightnvm/pblk-cache.c | 8 +- drivers/lightnvm/pblk-core.c | 606 ++++++++++++++++++++++++++------------- drivers/lightnvm/pblk-gc.c | 488 ++++++++++++++++++------------- drivers/lightnvm/pblk-init.c | 358 ++++++++++++++--------- drivers/lightnvm/pblk-map.c | 73 +++-- drivers/lightnvm/pblk-rb.c | 79 +++-- drivers/lightnvm/pblk-read.c | 82 +++--- drivers/lightnvm/pblk-recovery.c | 130 +++++---- drivers/lightnvm/pblk-rl.c | 88 ++++-- drivers/lightnvm/pblk-sysfs.c | 114 ++++---- drivers/lightnvm/pblk-write.c | 350 +++++++++++++++++----- drivers/lightnvm/pblk.h | 275 +++++++++++++----- drivers/nvme/host/lightnvm.c | 2 +- 14 files changed, 1763 insertions(+), 898 deletions(-) -- 2.7.4
