linux/Documentation
Joe Thornber 028ae9f76f dm cache: add fail io mode and needs_check flag
If a cache metadata operation fails (e.g. transaction commit) the
cache's metadata device will abort the current transaction, set a new
needs_check flag, and the cache will transition to "read-only" mode.  If
aborting the transaction or setting the needs_check flag fails the cache
will transition to "fail-io" mode.

Once needs_check is set the cache device will not be allowed to
activate.  Activation requires write access to metadata.  Future work is
needed to add proper support for running the cache in read-only mode.

Once in fail-io mode the cache will report a status of "Fail".

Also, add commit() wrapper that will disallow commits if in read_only or
fail mode.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-06-11 17:13:00 -04:00
..
ABI platform-drivers-x86 for 4.1 2015-04-26 13:44:46 -07:00
accounting
acpi ACPI / documentation: Fix ambiguity in the GPIO properties document 2015-05-04 14:26:14 +02:00
aoe
arm ARM: SoC multiplatform code changes for v4.1 2015-04-22 09:20:15 -07:00
arm64 ARM64 / ACPI: additions of ACPI documentation for arm64 2015-03-26 15:13:09 +00:00
auxdisplay
backlight
blackfin Documentation: blackfin: Makefile: Typo building issue 2015-04-11 15:19:31 +02:00
block Documentation: Remove mentioning of block barriers 2015-03-20 07:41:56 -06:00
blockdev Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-block 2015-04-16 22:05:27 -04:00
bus-devices
cdrom
cgroups The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
cma cma: debug: document new debugfs interface 2015-04-14 16:49:00 -07:00
connector
console
cpu-freq intel_pstate: Add num_pstates to sysfs 2015-01-30 01:52:17 +01:00
cpuidle
cris
crypto crypto: doc - AEAD / RNG AF_ALG interface 2015-03-09 21:06:18 +11:00
development-process
device-mapper dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
devicetree Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-05-22 15:44:50 -07:00
dmaengine Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2015-02-18 08:49:20 -08:00
DocBook Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus 2015-04-21 09:44:55 -03:00
driver-model Char/Misc driver patches for 4.1-rc1 2015-04-21 09:42:58 -07:00
dvb
early-userspace
EDID
extcon
fault-injection
fb
filesystems xfs: update for 4.1-rc1 2015-04-24 07:08:41 -07:00
firmware_class
fmc
frv
gpio The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
hid HID: sensor: Update document for custom sensor 2015-04-10 22:22:56 +02:00
hwmon hwmon: (it87) Add support for IT8620E 2015-04-05 06:01:00 -07:00
i2c i2c: slave: add documentation for i2c-slave-eeprom 2015-03-27 16:53:39 +01:00
ia64 virtual: Documentation: simplify and generalize paravirt_ops.txt 2015-02-13 17:15:44 +10:30
ide
infiniband
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2015-04-21 12:54:08 -07:00
ioctl platform/chrome: Add Chrome OS EC userspace device interface 2015-02-26 15:45:06 -08:00
isdn
ja_JP
kbuild Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2015-02-19 10:31:37 -08:00
kdump
ko_KR
laptops thinkpad_acpi: Add adaptive_kbd_mode sysfs attr 2015-03-03 09:00:08 -08:00
leds Documentation: leds: Add description of LED Flash class extension 2015-03-09 17:18:00 -07:00
locking Documentation changes for 3.20 2015-02-11 13:03:11 -08:00
m68k
memory-devices
metag
mic
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking net: rfs: fix crash in get_rps_cpus() 2015-04-26 16:07:57 -04:00
nfc
nios2
parisc
PCI The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
pcmcia
phy
platform
power Power management and ACPI updates for v4.1-rc1 2015-04-14 20:21:54 -07:00
powerpc Revert "powerpc/tm: Abort syscalls in active transactions" 2015-04-30 15:24:58 +10:00
pps
prctl
pti
ptp
rapidio
RCU
s390
scheduler docs/completion.txt: Various tweaks and corrections 2015-04-04 15:20:26 +02:00
scsi genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
security Smack: Updates for Smack documentation 2015-03-31 10:35:31 -07:00
serial pty: Fix input race when closing 2015-05-10 19:26:37 +02:00
sh
sound ASoC: Updates for v4.1 2015-04-13 14:14:29 +02:00
spi Documentation/spi/spidev_test.c: fix warning 2015-04-17 09:04:12 -04:00
sysctl Doc/sysctl/kernel.txt: document threads-max 2015-04-17 09:04:07 -04:00
target target: Version 2 of TCMU ABI 2015-04-19 22:40:26 -07:00
thermal
timers documentation: Update NO_HZ_FULL interaction with POSIX timers 2015-02-26 11:57:29 -08:00
tpm
trace coresight: Correcting documentation typographical error 2015-04-03 16:17:03 +02:00
usb usb: patches for v4.1 merge window 2015-03-24 22:57:49 +01:00
vDSO
video4linux [media] media/Documentation: New flag EXECUTE_ON_WRITE 2015-04-08 06:35:16 -03:00
virtual KVM: MMU: fix SMAP virtualization 2015-05-11 17:17:50 +02:00
vm The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
w1
watchdog
wimax
x86 x86/mm/KASLR: Propagate KASLR status to kernel proper 2015-04-03 15:26:15 +02:00
xtensa
zh_CN Documentation:Update Documentation/zh_CN/arm64/memory.txt 2015-04-04 15:20:26 +02:00
00-INDEX
applying-patches.txt
assoc_array.txt
atomic_ops.txt documentation: Clarify memory-barrier semantics of atomic operations 2015-02-26 11:57:31 -08:00
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt rmap: drop support of non-linear mappings 2015-02-10 14:30:31 -08:00
Changes
circular-buffers.txt
clk.txt clk: Add rate constraints to clocks 2015-02-02 14:23:42 -08:00
coccinelle.txt
CodeOfConflict Code of Conflict 2015-02-27 11:44:24 -08:00
CodingStyle The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
cpu-hotplug.txt cpumask: fix cpu-hotplug documentation 2015-03-05 13:37:01 +10:30
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
DMA-ISA-LPC.txt
dontdiff
dynamic-debug-howto.txt
edac.txt
efi-stub.txt
eisa.txt
email-clients.txt Documentation/email-clients.txt: Fix one grammar mistake, add extra info about TB 2015-03-20 07:41:55 -06:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gdb-kernel-debugging.txt scripts/gdb: add basic documentation 2015-02-17 14:34:54 -08:00
highuid.txt
HOWTO
hsi.txt
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt ipmi:ssif: Ignore spaces when comparing I2C adapter names 2015-05-05 14:24:45 -05:00
IRQ-affinity.txt
IRQ-domain.txt IRQCHIP: Update docs regarding irq_domain_add_tree() 2015-04-01 17:21:35 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt kasan: show gcc version requirements in Kconfig and Documentation 2015-05-05 17:10:10 -07:00
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt uas: Add US_FL_MAX_SECTORS_240 flag 2015-04-28 12:48:57 +02:00
kernel-per-CPU-kthreads.txt documentation: Update per-CPU kthreads documentation 2015-02-26 11:57:30 -08:00
kmemcheck.txt Documentation: update the CONFIG_DEBUG_PAGEALLOC description 2015-03-20 07:41:55 -06:00
kmemleak.txt
kobject.txt
kprobes.txt kprobes: Update Documentation/kprobes.txt 2015-03-20 07:41:55 -06:00
kref.txt
kselftest.txt
ldm.txt
local_ops.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lzo.txt
magic-number.txt
mailbox.txt
Makefile Documentation: Remove ZBOOT MMC/SDHI utility and docs 2015-02-24 06:45:25 +09:00
ManagementStyle
md-cluster.txt md-cluster: Design Documentation 2015-02-23 07:16:46 -06:00
md.txt
media-framework.txt
memory-barriers.txt The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
memory-hotplug.txt mem-hotplug: fix typo in Documentation/memory-hotplug.txt 2015-03-20 07:41:55 -06:00
module-signing.txt modsign: change default key details 2015-04-30 09:35:41 -07:00
mono.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pinctrl.txt pinctrl: fix example .get_group_pins implementation signature 2015-03-18 02:02:20 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt The documentation tree update for 4.1. Numerous fixes, the overdue removal 2015-04-18 11:10:49 -04:00
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt Documentation, split up rtc.txt into documentation and test file 2015-03-24 22:01:58 -06:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt stable_kernel_rules: Add clause about specification of kernel versions to patch. 2015-03-26 23:52:24 +01:00
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches checkpatch, SubmittingPatches: suggest line wrapping commit messages at 75 columns 2015-04-17 09:03:57 -04:00
svga.txt
sysfs-rules.txt
sysrq.txt
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xillybus.txt
xz.txt
zorro.txt