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Dan Williams 5813882094 libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only 
Upon detection of an unarmed dimm in a region, arrange for descendant
BTT, PMEM, or BLK instances to be read-only.  A dimm is primarily marked
"unarmed" via flags passed by platform firmware (NFIT).

The flags in the NFIT memory device sub-structure indicate the state of
the data on the nvdimm relative to its energy source or last "flush to
persistence".  For the most part there is nothing the driver can do but
advertise the state of these flags in sysfs and emit a message if
firmware indicates that the contents of the device may be corrupted.
However, for the case of ACPI_NFIT_MEM_ARMED, the driver can arrange for
the block devices incorporating that nvdimm to be marked read-only.
This is a safe default as the data is still available and new writes are
held off until the administrator either forces read-write mode, or the
energy source becomes armed.

A 'read_only' attribute is added to REGION devices to allow for
overriding the default read-only policy of all descendant block devices.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-06-26 11:23:38 -04:00
..
accessibility
acpi libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only 2015-06-26 11:23:38 -04:00
amba
android
ata powerpc updates for 4.1 2015-04-16 13:53:32 -05:00
atm
auxdisplay
base Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
bcma Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-04-17 15:50:54 -04:00
block libnvdimm, pmem: move pmem to drivers/nvdimm/ 2015-06-24 21:24:10 -04:00
bluetooth Bluetooth: btusb: Use proper data structures for Intel vendor events 2015-04-09 10:42:18 +03:00
bus drivers: CCI: fix used_mask init in validate_group() 2015-05-07 18:29:18 +02:00
cdrom
char ipmi: Fix multi-part message handling 2015-05-05 19:37:22 -05:00
clk ARM: SoC multiplatform code changes for v4.1 2015-04-22 09:20:15 -07:00
clocksource Initial ACPI support for arm64: 2015-04-24 08:23:45 -07:00
connector
cpufreq cpufreq: intel_pstate: Fix an annoying !CONFIG_SMP warning 2015-04-15 23:02:24 +02:00
cpuidle cpuidle: Run tick_broadcast_exit() with disabled interrupts 2015-04-29 15:19:21 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-04-26 13:51:05 -07:00
dca
devfreq
dio
dma dmaengine: increment privatecnt when using dma_get_any_slave_channel 2015-04-29 16:47:57 +05:30
dma-buf dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
edac
eisa
extcon Char/Misc driver patches for 4.1-rc1 2015-04-21 09:42:58 -07:00
firewire
firmware Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-05-06 10:57:37 -07:00
fmc
gpio gpio: omap: Fix regression for MPUIO interrupts 2015-05-06 15:19:38 +02:00
gpu Merge tag 'drm-intel-fixes-2015-05-08' of git://anongit.freedesktop.org/drm-intel into drm-fixes 2015-05-11 06:06:22 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-04-14 18:25:15 -07:00
hsi
hv
hwmon hwmon: (w83795) use find_closest_descending() in pwm_freq_to_reg() 2015-04-17 09:03:55 -04:00
hwspinlock
hwtracing/coresight Char/Misc driver patches for 4.1-rc1 2015-04-21 09:42:58 -07:00
i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2015-04-26 17:44:09 -07:00
ide ide: remove deprecated use of pci api 2015-04-17 15:32:07 -04:00
idle Power management and ACPI updates for v4.1-rc1 2015-04-14 20:21:54 -07:00
iio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-04-14 09:50:27 -07:00
infiniband IPoIB/CM: Fix indentation level 2015-05-05 13:21:27 -04:00
input platform/chrome: Updates for v4.1 2015-04-26 13:36:02 -07:00
iommu Merge git://git.infradead.org/intel-iommu 2015-04-26 17:47:46 -07:00
ipack
irqchip Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-05-09 14:59:05 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-04-15 09:00:47 -07:00
leds This is the bulk of GPIO changes for the v4.1 development 2015-04-18 08:22:10 -04:00
lguest Some virtio internal cleanups, a new virtio device "virtio input", and 2015-04-22 10:55:06 -07:00
macintosh
mailbox
mcb
md Two additional fixes for changes introduced via DM during the 4.1 merge 2015-05-08 20:38:21 -07:00
media media fixes for v4.1-rc3 2015-05-05 08:42:06 -07:00
memory ARM: SoC driver updates for v4.1 2015-04-22 09:18:17 -07:00
memstick memstick: mspro_block: add missing curly braces 2015-04-17 09:04:09 -04:00
message
mfd platform/chrome: Updates for v4.1 2015-04-26 13:36:02 -07:00
misc Char/Misc driver patches for 4.1-rc1 2015-04-21 09:42:58 -07:00
mmc mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLE 2015-05-08 08:55:47 +02:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
net net: fec: Fix RGMII-ID mode 2015-04-30 16:48:53 -04:00
nfc
ntb
nubus
nvdimm libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only 2015-06-26 11:23:38 -04:00
of Devicetree updates for 4.1: 2015-04-24 08:46:18 -07:00
oprofile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
parisc parisc: Eliminate sg_virt_addr() and private scatterlist.h 2015-04-21 22:02:43 +02:00
parport
pci xen: features and fixes for 4.1-rc0 2015-04-16 14:01:03 -05:00
pcmcia ARM: SoC cleanups for v4.1 2015-04-22 09:04:39 -07:00
phy USB patches for 4.1-rc1 2015-04-13 17:07:21 -07:00
pinctrl These are some GPIO fixes for the v4.1 series: 2015-05-08 19:42:59 -07:00
platform thinkpad_acpi: Fix warning for static not at beginning 2015-05-05 13:56:46 -07:00
pnp Power management and ACPI updates for v4.1-rc1 2015-04-14 20:21:54 -07:00
power
powercap powercap / RAPL: Add support for Intel Skylake processors 2015-04-15 23:06:16 +02:00
pps
ps3
ptp
pwm pwm: Remove __init initializer for pwm_add_table() 2015-04-23 14:50:52 +02:00
rapidio
ras
regulator == Changes to existing drivers == 2015-04-14 17:29:55 -07:00
remoteproc
reset
rpmsg
rtc rtc: armada38x: fix concurrency access in armada38x_rtc_set_time 2015-05-05 17:10:11 -07:00
s390 s390/3215: free memory in error path 2015-04-23 16:55:50 +02:00
sbus drivers/sbus/char/envctrl.c: ignore orderly_poweroff return value 2015-04-15 16:35:23 -07:00
scsi 3w-9xxx: fix command completion race 2015-04-27 10:10:19 -07:00
sfi
sh drivers: sh: Remove test for now unsupported sh7372 2015-04-27 13:08:14 +09:00
sn
soc - fix unused variable warning for pmic-wrapper 2015-04-14 00:43:28 +02:00
spi Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2015-04-24 09:49:37 -07:00
spmi
ssb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2015-04-17 15:50:54 -04:00
staging media fixes for v4.1-rc3 2015-05-05 08:42:06 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-04-24 10:22:09 -07:00
tc
thermal
thunderbolt
tty xen: bug fixes for 4.1-rc2 2015-05-06 15:58:06 -07:00
uio
usb cdc-acm: prevent infinite loop when parsing CDC headers. 2015-04-28 12:53:16 +02:00
uwb
vfio vfio: Fix runaway interruptible timeout 2015-05-01 16:31:41 -06:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-04-24 10:22:09 -07:00
video fbdev changes for v4.1 2015-04-20 15:16:25 -07:00
virt
virtio virtio: drop virtio_device_is_legacy_only 2015-04-15 12:41:14 +09:30
vlynq
vme
w1
watchdog Merge git://www.linux-watchdog.org/linux-watchdog 2015-04-22 11:22:55 -07:00
xen xen: Add __GFP_DMA flag when xen_swiotlb_init gets free pages on ARM 2015-05-06 15:02:58 +01:00
zorro
Kconfig libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support 2015-06-24 21:24:10 -04:00
Makefile libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support 2015-06-24 21:24:10 -04:00