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5 years
[PATCH 0/3] misc badblocks/poison list cleanup
by Vishal Verma
Some incremental patches:
Patch 1 re-adds checks for absence of a valid badblocks struct in the
badblocks API
Patch 2 moves ARS calls from the nfit driver to core
Patch 3 changes the status checking for ARS_START and ARS_STATUS from
using magic numbers to enums.
Vishal Verma (3):
badblocks: add null checks for bb in the badblocks api
libnvdimm, nfit: move nvdimm poison search to core
libnvdimm: use enums for ARS statuses
block/badblocks.c | 21 +++--
drivers/acpi/nfit.c | 198 +---------------------------------------------
drivers/nvdimm/core.c | 197 ++++++++++++++++++++++++++++++++++++++++++++-
drivers/nvdimm/nd-core.h | 13 +++
include/linux/libnvdimm.h | 3 +-
5 files changed, 227 insertions(+), 205 deletions(-)
--
2.5.0
5 years
[RFC PATCH 0/6] acpi/nfit, libnvdimm: 'call_dsm' integration
by Dan Williams
Jerry,
As mentioned earlier [1], these are the changes I'd like to see before
merging 'call_dsm' support as a new ioctl interface. I'm still working
through the ndctl changes to demonstrate a user for this new
functionality as well as tests.
These changes have turned out to be too big and too late to hit the
current merge window. Especially since the full series, your 6 patches
plus these, have not had any exposure in -next. Lets target v4.6 for
this functionality so we have time to finish up the testing, complete
the ndctl plumbing, and flush out any remaining concerns.
[1]: https://lists.01.org/pipermail/linux-nvdimm/2016-January/004024.html
---
Dan Williams (6):
libnvdimm: add ND_IOCTL_CALL_DSM
acpi/nfit, libnvdimm: clean up nd_cmd_dsmcall_pkg
acpi/nfit, libnvdimm: fail unsupported dsm function numbers via call_dsm
libnvdimm: advertise 'call_dsm' support
libnvdimm: fail call_dsm on unsupported devices
tools/testing/nvdimm: 'call_dsm' support
drivers/acpi/nfit.c | 40 ++++++++++++++++++++----------------
drivers/nvdimm/bus.c | 42 ++++++++++++++++++++------------------
drivers/nvdimm/core.c | 3 +++
drivers/nvdimm/dimm_devs.c | 8 ++++++-
include/linux/libnvdimm.h | 1 +
include/uapi/linux/ndctl.h | 21 ++++++++++---------
tools/testing/nvdimm/test/nfit.c | 13 ++++++++++--
7 files changed, 77 insertions(+), 51 deletions(-)
5 years
[PATCH v3 00/10] libnvdimm, pmem: handle media errors
by Dan Williams
Changes since v2: [1]
1/ Statically allocate the badblocks list in struct pmem_device, to support
dynamically establishing the first badblocks entry via sysfs. (Vishal)
2/ Fix pmem_rw_page() to skip page_endio() on error (Vishal)
3/ Replace devm_alloc_badblocks() with devm_init_badblocks(). The
expectation is that a driver that wants to use badblocks handles the
base allocation internally.
4/ Simplify nvdimm_namespace_add_poison() and __add_badblock_range().
[1]: https://lists.01.org/pipermail/linux-nvdimm/2016-January/003901.html
---
Following the enabling to retrieve a platform provided list of nvdimm
media errors [2], implement error handling in the pmem i/o paths. This
adds the following capabilities:
1/ Consult badblocks in the pmem_make_request() path to fail block
layer requests to platform advertised bad address ranges.
2/ Consult badblocks in the nvdimm_read_bytes() path to communicate
errors for namespace metadata reads and btt data reads.
[2]: https://lists.01.org/pipermail/linux-nvdimm/2015-December/003706.html
---
Dan Williams (10):
libnvdimm, pmem: move definition of nvdimm_namespace_add_poison to nd.h
badblocks: rename badblocks_free to badblocks_exit
block: clarify badblocks lifetime
block, badblocks: introduce devm_init_badblocks
libnvdimm: don't fail init for full badblocks list
libnvdimm: convert to statically allocated badblocks
pmem: fail io-requests to known bad blocks
pmem, dax: disable dax in the presence of bad blocks
libnvdimm, pmem: nvdimm_read_bytes() badblocks support
block: kill disk_{check|set|clear|alloc}_badblocks
block/badblocks.c | 56 ++++++++++++++++++++++++++----------
block/genhd.c | 47 ------------------------------
block/ioctl.c | 10 ++++++
drivers/md/md.c | 2 +
drivers/nvdimm/core.c | 64 +++++++++++++++--------------------------
drivers/nvdimm/nd-core.h | 2 -
drivers/nvdimm/nd.h | 2 +
drivers/nvdimm/pmem.c | 70 +++++++++++++++++++++++++++++++++++----------
include/linux/badblocks.h | 16 +++++++++-
include/linux/genhd.h | 5 ---
10 files changed, 145 insertions(+), 129 deletions(-)
5 years
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5 years
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5 years
[GIT PULL] libnvdimm for 4.5
by Williams, Dan J
Hi Linus, please pull from...
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.5
...to receive the libnvdimm update for 4.5.
The bulk of this has appeared in -next and independently received a
build success notification from the kbuild robot. The 'for-4.5/block-
dax' topic branch was rebased over the weekend to drop the "block
device end-of-life" rework that Al would like to see re-implemented
with a notifier, and to address bug reports against the badblocks
integration.
There is pending feedback against "libnvdimm: Add a poison list and
export badblocks" received last week. Linda identified some localized
fixups that we will handle incrementally.
This update has a minor conflict with the dax updates pending in -mm,
but only for both sides wanting to add a new header-file-include to
drivers/nvdimm/pmem.c.
---
The following changes since commit 9f9499ae8e6415cefc4fe0a96ad0e27864353c89:
Linux 4.4-rc5 (2015-12-13 17:42:58 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm tags/libnvdimm-for-4.5
for you to fetch changes up to 8b63b6bfc1a551acf154061699028c7032d7890c:
Merge branch 'for-4.5/block-dax' into for-4.5/libnvdimm (2016-01-10 07:53:55 -0800)
----------------------------------------------------------------
libnvdimm for 4.5
1/ Media error handling: The 'badblocks' implementation that originated
in md-raid is up-levelled to a generic capability of a block device.
This initial implementation is limited to being consulted in the pmem
block-i/o path. Later, 'badblocks' will be consulted when creating
dax mappings.
2/ Raw block device dax: For virtualization and other cases that want
large contiguous mappings of persistent memory, add the capability to
dax-mmap a block device directly.
3/ Increased /dev/mem restrictions: Add an option to treat all io-memory
as IORESOURCE_EXCLUSIVE, i.e. disable /dev/mem access while a driver is
actively using an address range. This behavior is controlled via the
new CONFIG_IO_STRICT_DEVMEM option and can be overridden by the
existing "iomem=relaxed" kernel command line option.
4/ Miscellaneous fixes include a 'pfn'-device huge page alignment fix,
block device shutdown crash fix, and other small libnvdimm fixes.
----------------------------------------------------------------
Dan Williams (27):
libnvdimm, pfn: kill ND_PFN_ALIGN
libnvdimm, pfn: clean up pfn create parameters
libnvdimm, pfn: add 'align' attribute, default to HPAGE_SIZE
libnvdimm, pfn: add parent uuid validation
libnvdimm, pfn: fix pfn seed creation
libnvdimm, pfn: enable pfn sysfs interface unit testing
libnvdimm, pfn: fix nd_pfn_validate() return value handling
tools/testing/libnvdimm: cleanup mock resource lookup
libnvdimm, pfn: move 'memory mode' indication to sysfs
libnvdimm: fix namespace object confusion in is_uuid_busy()
arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug
restrict /dev/mem to idle io memory ranges
block: introduce bdev_file_inode()
block: enable dax for raw block devices
block: fix del_gendisk() vs blkdev_ioctl crash
nfit_test: Enable DSMs for all test NFITs
libnvdimm, pmem: move definition of nvdimm_namespace_add_poison to nd.h
badblocks: rename badblocks_free to badblocks_exit
block: clarify badblocks lifetime
block, badblocks: introduce devm_init_badblocks
libnvdimm: don't fail init for full badblocks list
libnvdimm: convert to statically allocated badblocks
pmem: fail io-requests to known bad blocks
pmem, dax: disable dax in the presence of bad blocks
libnvdimm, pmem: nvdimm_read_bytes() badblocks support
block: kill disk_{check|set|clear|alloc}_badblocks
Merge branch 'for-4.5/block-dax' into for-4.5/libnvdimm
Dmitry Krivenok (2):
nvdimm: improve diagnosibility of namespaces
nvdimm: do not show pfn_seed for non pmem regions
Vishal Verma (4):
badblocks: Add core badblock management code
block: Add badblock management for gendisks
md: convert to use the generic badblocks code
libnvdimm: Add a poison list and export badblocks
arch/arm/Kconfig | 1 +
arch/arm/Kconfig.debug | 14 -
arch/arm64/Kconfig | 1 +
arch/arm64/Kconfig.debug | 14 -
arch/frv/Kconfig | 1 +
arch/m32r/Kconfig | 1 +
arch/powerpc/Kconfig | 1 +
arch/powerpc/Kconfig.debug | 12 -
arch/s390/Kconfig | 1 +
arch/s390/Kconfig.debug | 12 -
arch/tile/Kconfig | 4 +-
arch/unicore32/Kconfig | 1 +
arch/unicore32/Kconfig.debug | 14 -
arch/x86/Kconfig | 1 +
arch/x86/Kconfig.debug | 17 --
block/Makefile | 2 +-
block/badblocks.c | 585 ++++++++++++++++++++++++++++++++++++++
block/genhd.c | 30 +-
block/ioctl.c | 71 +++++
drivers/acpi/nfit.c | 203 +++++++++++++
drivers/md/md.c | 516 ++-------------------------------
drivers/md/md.h | 40 +--
drivers/nvdimm/core.c | 169 +++++++++++
drivers/nvdimm/namespace_devs.c | 132 +++++++--
drivers/nvdimm/nd-core.h | 2 +
drivers/nvdimm/nd.h | 16 +-
drivers/nvdimm/pfn_devs.c | 93 ++++--
drivers/nvdimm/pmem.c | 90 ++++--
drivers/nvdimm/region_devs.c | 66 +----
fs/block_dev.c | 122 +++++++-
include/linux/badblocks.h | 65 +++++
include/linux/fs.h | 11 +
include/linux/genhd.h | 2 +
include/linux/libnvdimm.h | 1 +
include/uapi/linux/fs.h | 2 +
kernel/resource.c | 11 +-
lib/Kconfig.debug | 39 +++
tools/testing/nvdimm/Kbuild | 2 +
tools/testing/nvdimm/test/iomap.c | 93 +++---
tools/testing/nvdimm/test/nfit.c | 11 +
40 files changed, 1673 insertions(+), 796 deletions(-)
create mode 100644 block/badblocks.c
create mode 100644 include/linux/badblocks.h
5 years
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