Andy Grover
63c8ecb626
dm thin: include metadata_low_watermark threshold in pool status ...
The metadata low watermark threshold is set by the kernel. But the
kernel depends on userspace to extend the thinpool metadata device when
the threshold is crossed.
Since the metadata low watermark threshold is not visible to userspace,
upon receiving an event, userspace cannot tell that the kernel wants the
metadata device extended, instead of some other eventing condition.
Making it visible (but not settable) enables userspace to affirmatively
know the kernel is asking for a metadata device extension, by comparing
metadata_low_watermark against nr_free_blocks_metadata, also reported in
status.
Current solutions like dmeventd have their own thresholds for extending
the data and metadata devices, and both devices are checked against
their thresholds on each event. This lessens the value of the kernel-set
threshold, since userspace will either extend the metadata device sooner,
when receiving another event; or will receive the metadata lowater event
and do nothing, if dmeventd's threshold is less than the kernel's.
(This second case is dangerous. The metadata lowater event will not be
re-sent, so no further event will be generated before the metadata
device is out if space, unless some other event causes userspace to
recheck its thresholds.)
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2018-07-30 11:49:08 -04:00
ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
2018-07-19 16:42:15 +02:00
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2018-06-06 13:49:25 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
ata: Remove depends on HAS_DMA in case of platform dependency
2018-07-02 13:18:22 -07:00
atm: zatm: Fix potential Spectre v1
2018-06-30 21:24:18 +09:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
PM / Domains: Don't power on at attach for the multi PM domain case
2018-07-03 16:42:51 +02:00
dma-mapping updates for 4.18:
2018-06-04 10:58:12 -07:00
for-linus-20180706
2018-07-06 19:13:42 -07:00
bluetooth: hci_nokia: Don't include linux/unaligned/le_struct.h directly.
2018-06-17 08:38:55 +09:00
bus: ti-sysc: Use 2-factor allocator arguments
2018-07-02 04:24:44 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
char: amd64-agp: Use 64-bit arithmetic instead of 32-bit
2018-07-10 13:50:31 +10:00
clk: davinci: fixes for 4.18
2018-06-27 11:01:29 -07:00
clocksource: arm_arch_timer: Set arch_mem_timer cpumask to cpu_possible_mask
2018-07-10 22:12:47 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
cpufreq: intel_pstate: Register when ACPI PCCH is present
2018-07-18 13:38:37 +02:00
powerpc updates for 4.18
2018-06-07 10:23:33 -07:00
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2018-06-24 06:31:54 +08:00
* fix one ensures that a variable passed in by reference to
2018-07-13 10:54:01 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
dmaengine: k3dma: Off by one in k3_of_dma_simple_xlate()
2018-06-28 11:57:21 +05:30
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
efi/libstub/tpm: Initialize efi_physical_addr_t vars to zero for mixed mode
2018-06-22 10:58:27 +02:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
fpga: altera-cvp: Fix an error handling path in 'altera_cvp_probe()'
2018-07-07 16:55:22 +02:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-07-22 12:04:51 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2018-07-09 17:16:11 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
hwmon: (nct6775) Fix loop limit
2018-06-16 16:40:36 -07:00
hwspinlock updates for v4.18
2018-06-11 12:09:19 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2018-07-13 15:34:29 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
iio: imu: inv_mpu6050: Fix probe() failure on older ACPI based machines
2018-06-24 14:50:52 +01:00
Regression, user visible bugs, and crashing fixes:
2018-07-13 12:42:14 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2018-06-27 09:16:53 -07:00
Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
2018-07-20 13:55:56 +02:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
irqchip/gic-v3-its: Fix reprogramming of redistributors on CPU hotplug
2018-06-22 14:22:02 +02:00
Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL
2018-06-28 10:40:47 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
for-linus-20180623
2018-06-24 06:33:54 +08:00
powerpc updates for 4.18
2018-06-07 10:23:33 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
dm thin: include metadata_low_watermark threshold in pool status
2018-07-30 11:49:08 -04:00
bpf: fix attach type BPF_LIRC_MODE2 dependency wrt CONFIG_CGROUP_BPF
2018-06-26 11:28:38 +02:00
- Error path bug fix for overflow tests (Dan)
2018-06-12 18:28:00 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2018-06-14 16:21:46 +09:00
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-07-22 12:04:51 -07:00
mmc: sdhci-esdhc-imx: allow 1.8V modes without 100/200MHz pinctrl states
2018-07-09 11:17:47 +02:00
mtd: spi-nor: cadence-quadspi: Fix direct mode write timeouts
2018-07-03 10:01:44 +02:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-07-18 19:32:54 -07:00
NFC: pn533: Fix wrong GFP flag usage
2018-06-25 21:36:45 +08:00
- Error path bug fix for overflow tests (Dan)
2018-06-12 18:28:00 -07:00
Char/Misc driver patches for 4.18-rc1
2018-06-05 16:20:22 -07:00
* fix one ensures that a variable passed in by reference to
2018-07-13 10:54:01 -07:00
nvme: fix handling of metadata_len for NVME_IOCTL_IO_CMD
2018-07-20 07:43:59 -07:00
nvmem: Don't let a NULL cell_id for nvmem_cell_get() crash us
2018-07-07 17:30:25 +02:00
of: overlay: update phandle cache on overlay apply and remove
2018-07-16 08:41:32 -06:00
PM / OPP: Update voltage in case freq == old_freq
2018-06-19 15:53:32 +05:30
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
dma-mapping updates for 4.18:
2018-06-04 10:58:12 -07:00
docs: Fix some broken references
2018-06-15 18:10:01 -03:00
pci-v4.18-fixes-3
2018-07-19 11:54:04 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
drivers/perf: xgene_pmu: Fix IOB SLOW PMU parser error
2018-06-18 17:48:42 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2018-06-06 18:39:49 -07:00
pinctrl: nsp: Fix potential NULL dereference
2018-07-14 12:47:04 +02:00
platform/x86: dell-laptop: Fix backlight detection
2018-07-20 15:29:59 +03:00
media updates for v4.18-rc1
2018-06-07 12:34:37 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
ptp: fix missing break in switch
2018-07-18 15:25:25 -07:00
pwm: Changes for v4.18-rc1
2018-06-14 16:25:43 +09:00
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX
2018-06-15 07:55:25 +09:00
- Error path bug fix for overflow tests (Dan)
2018-06-12 18:28:00 -07:00
rpmsg: smd: do not use mananged resources for endpoints and channels
2018-06-04 12:35:03 -07:00
rtc: fix alarm read and set offset
2018-07-13 10:37:54 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2018-07-06 09:14:34 -07:00
fix a series of Documentation/ broken file name references
2018-06-15 18:10:01 -03:00
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2018-07-22 12:04:51 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
i.MX fixes for 4.18, round 3:
2018-07-19 15:09:59 -07:00
docs: Fix more broken references
2018-06-15 18:11:26 -03:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
staging: r8822be: Fix RTL8822be can't find any wireless AP
2018-07-06 17:44:35 +02:00
scsi: target: Fix truncated PR-in ReadKeys response
2018-06-19 21:36:37 -04:00
- Error path bug fix for overflow tests (Dan)
2018-06-12 18:28:00 -07:00
thunderbolt: Notify userspace when boot_acl is changed
2018-07-07 17:29:17 +02:00
vt: prevent leaking uninitialized data to userspace via /dev/vcs*
2018-06-28 21:34:39 +09:00
uio: fix crash after the device is unregistered
2018-07-07 16:57:35 +02:00
USB: yurex: fix out-of-bounds uaccess in read handler
2018-07-06 17:21:34 +02:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
powerpc fixes for 4.18 #4
2018-07-21 16:46:53 -07:00
vhost_net: validate sock before trying to put its fd
2018-06-23 10:23:49 +09:00
Solve a series of broken links for files under Documentation:
2018-06-17 05:25:18 +09:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
virtio, vhost: features, fixes
2018-06-16 06:35:02 +09:00
Char/Misc driver patches for 4.18-rc1
2018-06-05 16:20:22 -07:00
MIPS changes for 4.18
2018-06-12 12:56:02 -07:00
xen: fixes for 4.18-rc2
2018-06-23 20:44:11 +08:00
- Introduce arithmetic overflow test helper functions (Rasmus)
2018-06-06 17:27:14 -07:00
63c8ecb626