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Message-ID: <1523337147.23102.31.camel@intel.com>
Date: Tue, 10 Apr 2018 05:12:42 +0000
From: "Williams, Dan J" <dan.j.williams@...el.com>
To: "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
"inux-nvdimm@...ts.01.org" <inux-nvdimm@...ts.01.org>
Subject: [GIT PULL] libnvdimm for 4.17
Hi Linus, please pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.17
...to receive the libnvdimm update for 4.17.
This cycle was was not something I ever want to repeat as there were
several late changes that have only now just settled. Half of the
branch up to commit d2c997c0f145 "fs, dax: use page->mapping to
warn..." have been in -next for several releases. The of_pmem driver
and the address range scrub rework were late arrivals, and the dax work
was scaled back at the last moment.
The of_pmem driver missed a previous merge window due to an oversight.
A sense of obligation to rectify that miss is why it is included for
4.17. It has acks from PowerPC folks. Stephen reported a build failure
that only occurs when merging it with your latest tree, for now I have
fixed that up by disabling modular builds of of_pmem. A test merge with
your tree has received a build success report from the 0day robot over
156 configs.
An initial version of the ARS rework was submitted before the merge
window. It is self contained to libnvdimm, a net code reduction, and
passing all unit tests.
The filesystem-dax changes are based on the wait_var_event()
functionality from tip/sched/core. However, late review feedback showed
that those changes regressed truncate performance to a large degress.
The branch was rewound to drop the truncate behavior change and now
only includes preparation patches and cleanups (with full acks and
reviews). The finalization of this dax-dma-vs-trnucate work will need
to wait for 4.18.
git picked the wait_var_event() baseline for the diffstat, so I also
include the diffstat of the test merge below.
The following changes since commit 3eb2ce825ea1ad89d20f7a3b5780df850e4be274:
Linux 4.16-rc7 (2018-03-25 12:44:30 -1000)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.17
for you to fetch changes up to e13e75b86ef2f88e3a47d672dd4c52a293efb95b:
Merge branch 'for-4.17/dax' into libnvdimm-for-next (2018-04-09 10:50:17 -0700)
----------------------------------------------------------------
libnvdimm for 4.17
* A rework of the filesytem-dax implementation provides for detection of
unmap operations (truncate / hole punch) colliding with in-progress
device-DMA. A fix for these collisions remains a work-in-progress
pending resolution of truncate latency and starvation regressions.
* The of_pmem driver expands the users of libnvdimm outside of x86 and
ACPI to describe an implementation of persistent memory on PowerPC with
Open Firmware / Device tree.
* Address Range Scrub (ARS) handling is completely rewritten to account for
the fact that ARS may run for 100s of seconds and there is no platform
defined way to cancel it. ARS will now no longer block namespace
initialization.
* The NVDIMM Namespace Label implementation is updated to handle label
areas as small as 1K, down from 128K.
* Miscellaneous cleanups and updates to unit test infrastructure.
----------------------------------------------------------------
Dan Williams (26):
libnvdimm: remove redundant __func__ in dev_dbg
device-dax: remove redundant __func__ in dev_dbg
nfit: skip region registration for incomplete control regions
acpi, nfit: rework NVDIMM leaf method detection
dax: store pfns in the radix
fs, dax: prepare for dax-specific address_space_operations
block, dax: remove dead code in blkdev_writepages()
xfs, dax: introduce xfs_dax_aops
ext4, dax: introduce ext4_dax_aops
nfit: fix region registration vs block-data-window ranges
ext2, dax: introduce ext2_dax_aops
fs, dax: use page->mapping to warn if truncate collides with a busy page
dax: introduce CONFIG_DAX_DRIVER
dax, dm: allow device-mapper to operate without dax support
nfit, address-range-scrub: fix scrub in-progress reporting
libnvdimm: add an api to cast a 'struct nd_region' to its 'struct device'
nfit, address-range-scrub: introduce nfit_spa->ars_state
libnvdimm, dimm: fix dpa reservation vs uninitialized label area
libnvdimm, namespace: use a safe lookup for dimm device name
libnvdimm, region: quiet region probe
nfit, address-range-scrub: determine one platform max_ars value
nfit, address-range-scrub: rework and simplify ARS state machine
nfit, address-range-scrub: add module option to skip initial ars
libnvdimm, of_pmem: workaround OF_NUMA=n build error
Merge branch 'for-4.17/libnvdimm' into libnvdimm-for-next
Merge branch 'for-4.17/dax' into libnvdimm-for-next
Johannes Thumshirn (4):
acpi, nfit: remove redundant __func__ in dev_dbg
libnvdimm: provide module_nd_driver wrapper
libnvdimm, pmem: use module_nd_driver
device-dax: use module_nd_driver
Oliver O'Halloran (4):
libnvdimm: Add of_node to region and bus descriptors
libnvdimm: Add device-tree based driver
doc/devicetree: Persistent memory region bindings
powerpc/powernv: Create platform devs for nvdimm buses
Ross Zwisler (3):
nfit_test: improve structure offset handling
nfit_test: fix buffer overrun, add sanity check
nfit_test: prevent parsing error of nfit_test.0
Toshi Kani (2):
libnvdimm, label: change min label storage size per UEFI 2.7
libnvdimm, label: change nvdimm_num_label_slots per UEFI 2.7
Vishal Verma (2):
libnvdimm, testing: Add emulation for smart injection commands
libnvdimm, testing: update the default smart ctrl_temperature
Documentation/admin-guide/kernel-parameters.txt | 11 +
.../devicetree/bindings/pmem/pmem-region.txt | 65 ++
MAINTAINERS | 8 +
arch/powerpc/platforms/powernv/opal.c | 3 +
drivers/acpi/nfit/core.c | 679 ++++++++++-----------
drivers/acpi/nfit/mce.c | 5 +-
drivers/acpi/nfit/nfit.h | 22 +-
drivers/dax/Kconfig | 5 +-
drivers/dax/device.c | 38 +-
drivers/dax/pmem.c | 18 +-
drivers/dax/super.c | 15 +-
drivers/md/Kconfig | 2 +-
drivers/md/dm-linear.c | 6 +
drivers/md/dm-log-writes.c | 95 +--
drivers/md/dm-stripe.c | 6 +
drivers/md/dm.c | 10 +-
drivers/nvdimm/Kconfig | 13 +-
drivers/nvdimm/Makefile | 1 +
drivers/nvdimm/btt_devs.c | 21 +-
drivers/nvdimm/bus.c | 14 +-
drivers/nvdimm/claim.c | 2 +-
drivers/nvdimm/core.c | 6 +-
drivers/nvdimm/dax_devs.c | 5 +-
drivers/nvdimm/dimm.c | 8 +-
drivers/nvdimm/dimm_devs.c | 7 +-
drivers/nvdimm/label.c | 85 +--
drivers/nvdimm/label.h | 2 +-
drivers/nvdimm/namespace_devs.c | 42 +-
drivers/nvdimm/nd.h | 1 -
drivers/nvdimm/of_pmem.c | 119 ++++
drivers/nvdimm/pfn_devs.c | 25 +-
drivers/nvdimm/pmem.c | 14 +-
drivers/nvdimm/region.c | 4 +-
drivers/nvdimm/region_devs.c | 9 +
drivers/s390/block/Kconfig | 2 +-
fs/block_dev.c | 5 -
fs/dax.c | 146 +++--
fs/ext2/ext2.h | 1 +
fs/ext2/inode.c | 46 +-
fs/ext2/namei.c | 18 +-
fs/ext4/inode.c | 42 +-
fs/libfs.c | 39 ++
fs/xfs/xfs_aops.c | 34 +-
fs/xfs/xfs_aops.h | 1 +
fs/xfs/xfs_iops.c | 5 +-
include/linux/dax.h | 42 +-
include/linux/fs.h | 4 +
include/linux/libnvdimm.h | 4 +
include/linux/nd.h | 6 +
include/linux/sched/deadline.h | 6 -
include/linux/sched/isolation.h | 1 +
include/linux/sched/nohz.h | 4 -
include/linux/tick.h | 4 +-
include/linux/wait_bit.h | 70 +++
kernel/sched/Makefile | 5 +-
kernel/sched/autogroup.c | 21 +-
kernel/sched/autogroup.h | 12 +-
kernel/sched/clock.c | 36 +-
kernel/sched/completion.c | 5 +-
kernel/sched/core.c | 165 +++--
kernel/sched/cpuacct.c | 33 +-
kernel/sched/cpudeadline.c | 23 +-
kernel/sched/cpudeadline.h | 29 +-
kernel/sched/cpufreq.c | 1 -
kernel/sched/cpufreq_schedutil.c | 137 ++---
kernel/sched/cpupri.c | 15 +-
kernel/sched/cpupri.h | 25 +-
kernel/sched/cputime.c | 58 +-
kernel/sched/deadline.c | 78 +--
kernel/sched/debug.c | 99 ++-
kernel/sched/fair.c | 299 +++++----
kernel/sched/idle.c | 142 ++++-
kernel/sched/idle_task.c | 110 ----
kernel/sched/isolation.c | 14 +-
kernel/sched/loadavg.c | 34 +-
kernel/sched/membarrier.c | 27 +-
kernel/sched/rt.c | 51 +-
kernel/sched/sched.h | 623 ++++++++++---------
kernel/sched/stats.c | 20 +-
kernel/sched/stats.h | 86 ++-
kernel/sched/stop_task.c | 11 +-
kernel/sched/swait.c | 6 +-
kernel/sched/topology.c | 46 +-
kernel/sched/wait.c | 13 +-
kernel/sched/wait_bit.c | 71 ++-
kernel/time/tick-sched.c | 15 +-
kernel/workqueue.c | 3 +-
tools/testing/nvdimm/test/nfit.c | 239 +++++---
tools/testing/nvdimm/test/nfit_test.h | 16 +
89 files changed, 2513 insertions(+), 1901 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pmem/pmem-region.txt
create mode 100644 drivers/nvdimm/of_pmem.c
delete mode 100644 kernel/sched/idle_task.c
---
Test merge diffstat:
.../devicetree/bindings/pmem/pmem-region.txt | 65 ++
MAINTAINERS | 8 +
arch/powerpc/platforms/powernv/opal.c | 3 +
drivers/acpi/nfit/core.c | 679 ++++++++++-----------
drivers/acpi/nfit/mce.c | 5 +-
drivers/acpi/nfit/nfit.h | 22 +-
drivers/dax/Kconfig | 5 +-
drivers/dax/device.c | 38 +-
drivers/dax/pmem.c | 18 +-
drivers/dax/super.c | 15 +-
drivers/md/Kconfig | 2 +-
drivers/md/dm-linear.c | 6 +
drivers/md/dm-log-writes.c | 95 +--
drivers/md/dm-stripe.c | 6 +
drivers/md/dm.c | 10 +-
drivers/nvdimm/Kconfig | 13 +-
drivers/nvdimm/Makefile | 1 +
drivers/nvdimm/btt_devs.c | 21 +-
drivers/nvdimm/bus.c | 14 +-
drivers/nvdimm/claim.c | 2 +-
drivers/nvdimm/core.c | 6 +-
drivers/nvdimm/dax_devs.c | 5 +-
drivers/nvdimm/dimm.c | 8 +-
drivers/nvdimm/dimm_devs.c | 7 +-
drivers/nvdimm/label.c | 85 +--
drivers/nvdimm/label.h | 2 +-
drivers/nvdimm/namespace_devs.c | 42 +-
drivers/nvdimm/nd.h | 1 -
drivers/nvdimm/of_pmem.c | 119 ++++
drivers/nvdimm/pfn_devs.c | 25 +-
drivers/nvdimm/pmem.c | 14 +-
drivers/nvdimm/region.c | 4 +-
drivers/nvdimm/region_devs.c | 9 +
drivers/s390/block/Kconfig | 2 +-
fs/block_dev.c | 5 -
fs/dax.c | 146 +++--
fs/ext2/ext2.h | 1 +
fs/ext2/inode.c | 46 +-
fs/ext2/namei.c | 18 +-
fs/ext4/inode.c | 42 +-
fs/libfs.c | 39 ++
fs/xfs/xfs_aops.c | 34 +-
fs/xfs/xfs_aops.h | 1 +
fs/xfs/xfs_iops.c | 5 +-
include/linux/dax.h | 42 +-
include/linux/fs.h | 4 +
include/linux/libnvdimm.h | 4 +
include/linux/nd.h | 6 +
tools/testing/nvdimm/test/nfit.c | 239 +++++---
tools/testing/nvdimm/test/nfit_test.h | 16 +
50 files changed, 1217 insertions(+), 788 deletions(-)
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