linux-kernel - [PATCH 0/2] lightnvm: patches for 4.15 on core

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Message-Id: <1507296385-6045-1-git-send-email-javier@cnexlabs.com>
Date:   Fri,  6 Oct 2017 15:26:23 +0200
From:   "Javier González" <jg@...htnvm.io>
To:     mb@...htnvm.io
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Javier González <javier@...xlabs.com>
Subject: [PATCH 0/2] lightnvm: patches for 4.15 on core

These are 2 patches on the subsystem for 4.15.

The first one is a fix on the passtrhough path that enables fail fast,
just as it is done on standard nvme passtrough commands.

The second one implements a generic way to send sync. I/O from targets.
Trough time, we ended up having _many_ wait_for_completion()
constructions to implement sync. I/O, both on pblk and at the subsystem
level. One of the main issues - besides code replication - is that we
could not benefit from improvements on blk_execute_rq to prevent hangs.
This should fix it.

Javier González (2):
  lightnvm: fail fast on passthrough commands
  lightnvm: implement generic path for sync I/O

 drivers/lightnvm/core.c          | 25 ++++++++-----
 drivers/lightnvm/pblk-core.c     | 78 +++++++++++++---------------------------
 drivers/lightnvm/pblk-read.c     | 21 ++---------
 drivers/lightnvm/pblk-recovery.c | 31 ++--------------
 drivers/lightnvm/pblk.h          | 42 ++++++++++++++++++++--
 drivers/nvme/host/lightnvm.c     | 72 ++++++++++++++++++++++++++++---------
 include/linux/lightnvm.h         |  3 ++
 7 files changed, 145 insertions(+), 127 deletions(-)

-- 
2.7.4