android_kernel_oneplus_msm8998/drivers
Sebastian Siewior 38be91ce7e ubi/upd: Always flush after prepared for an update
commit 9cd9a21ce070be8a918ffd3381468315a7a76ba6 upstream.

In commit 6afaf8a484 ("UBI: flush wl before clearing update marker") I
managed to trigger and fix a similar bug. Now here is another version of
which I assumed it wouldn't matter back then but it turns out UBI has a
check for it and will error out like this:

|ubi0 warning: validate_vid_hdr: inconsistent used_ebs
|ubi0 error: validate_vid_hdr: inconsistent VID header at PEB 592

All you need to trigger this is? "ubiupdatevol /dev/ubi0_0 file" + a
powercut in the middle of the operation.
ubi_start_update() sets the update-marker and puts all EBs on the erase
list. After that userland can proceed to write new data while the old EB
aren't erased completely. A powercut at this point is usually not that
much of a tragedy. UBI won't give read access to the static volume
because it has the update marker. It will most likely set the corrupted
flag because it misses some EBs.
So we are all good. Unless the size of the image that has been written
differs from the old image in the magnitude of at least one EB. In that
case UBI will find two different values for `used_ebs' and refuse to
attach the image with the error message mentioned above.

So in order not to get in the situation, the patch will ensure that we
wait until everything is removed before it tries to write any data.
The alternative would be to detect such a case and remove all EBs at the
attached time after we processed the volume-table and see the
update-marker set. The patch looks bigger and I doubt it is worth it
since usually the write() will wait from time to time for a new EB since
usually there not that many spare EB that can be used.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-27 09:09:33 +02:00
..
accessibility
acpi ACPI / power: Avoid maybe-uninitialized warning 2017-04-27 09:09:33 +02:00
amba
android ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct 2016-11-10 16:36:33 +01:00
ata libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices 2017-02-09 08:02:45 +01:00
atm
auxdisplay
base base/memory, hotplug: fix a kernel oops in show_valid_zones() 2017-02-09 08:02:47 +01:00
bcma bcma: use (get|put)_device when probing/removing device driver 2017-03-12 06:37:30 +01:00
block zram: do not use copy_page with non-page aligned address 2017-04-21 09:30:06 +02:00
bluetooth Bluetooth: Add another AR3012 04ca:3018 device 2017-03-15 09:57:11 +08:00
bus bus: vexpress-config: fix device reference leak 2017-01-19 20:17:22 +01:00
cdrom
char virtio-console: avoid DMA from stack 2017-04-21 09:30:07 +02:00
clk clk: imx31: fix rewritten input argument of mx31_clocks_init() 2017-01-12 11:22:49 +01:00
clocksource clocksource/exynos_mct: Clear interrupt when cpu is shut down 2017-01-26 08:23:48 +01:00
connector connector: bump skb->users before callback invocation 2016-01-04 21:46:45 -05:00
cpufreq cpufreq: Restore policy min/max limits on CPU online 2017-03-30 09:35:18 +02:00
cpuidle ARM: cpuidle: Fix error return code 2016-10-16 17:36:15 +02:00
crypto crypto: caam - fix RNG deinstantiation error checking 2017-04-18 07:14:36 +02:00
dca
devfreq
dio
dma dmaengine: ipu: Make sure the interrupt routine checks all interrupts. 2017-03-12 06:37:30 +01:00
dma-buf
edac EDAC: Increment correct counter in edac_inc_ue_error() 2016-09-07 08:32:41 +02:00
eisa
extcon extcon: max77843: Use correct size for reading the interrupt register 2016-05-04 14:48:54 -07:00
firewire firewire: net: fix fragmented datagram_size off-by-one 2016-11-10 16:36:35 +01:00
firmware efi: Expose non-blocking set_variable() wrapper to efivars 2016-05-04 14:48:49 -07:00
fmc
fpga
gpio gpio: mpc8xxx: Correct irq handler function 2016-10-28 03:01:25 -04:00
gpu drm/nouveau/mmu/nv4a: use nv04 mmu rather than the nv44 one 2017-04-21 09:30:04 +02:00
hid HID: wacom: Fix poor prox handling in 'wacom_pl_irq' 2017-02-09 08:02:46 +01:00
hsi
hv Drivers: hv: vmbus: Reduce the delay between retries in vmbus_post_msg() 2017-04-27 09:09:32 +02:00
hwmon hwmon: (g762) Fix overflows and crash seen when writing limit attributes 2017-01-12 11:22:48 +01:00
hwspinlock drivers/hwspinlock: fix race between radix tree insertion and lookup 2016-02-25 12:01:23 -08:00
hwtracing intel_th: Fix a deadlock in modprobing 2016-08-10 11:49:30 +02:00
i2c i2c: fix kernel memory disclosure in dev interface 2017-01-19 20:17:20 +01:00
ide
idle intel_idle: Support for Intel Xeon Phi Processor x200 Product Family 2016-09-15 08:27:46 +02:00
iio iio: bmg160: reset chip when probing 2017-04-12 12:38:33 +02:00
infiniband IB/srp: Fix race conditions related to task management 2017-03-15 09:57:13 +08:00
input Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled 2017-04-27 09:09:32 +02:00
iommu iommu/vt-d: Fix NULL pointer dereference in device_to_iommu 2017-03-30 09:35:18 +02:00
ipack
irqchip irqchip/irq-imx-gpcv2: Fix spinlock initialization 2017-04-21 09:30:06 +02:00
isdn isdn/gigaset: fix NULL-deref at probe 2017-03-26 12:13:19 +02:00
leds
lguest
lightnvm lightnvm: put bio before return 2016-09-24 10:07:35 +02:00
macintosh
mailbox
mcb mcb: Fixed bar number assignment for the gdd 2016-06-01 12:15:53 -07:00
md blk: Ensure users for current->bio_list can see the full list. 2017-04-08 09:53:32 +02:00
media dvb-usb-firmware: don't do DMA on stack 2017-04-21 09:30:07 +02:00
memory memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing 2016-07-27 09:47:35 -07:00
memstick memstick: rtsx_usb_ms: Manage runtime PM when accessing the device 2016-10-28 03:01:35 -04:00
message
mfd mfd: core: Fix device reference leak in mfd_clone_cell 2016-11-26 09:54:53 +01:00
misc mei: bus: fix mei_cldev_enable KDoc 2017-01-12 11:22:47 +01:00
mmc mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 card 2017-04-27 09:09:33 +02:00
mtd ubi/upd: Always flush after prepared for an update 2017-04-27 09:09:33 +02:00
net ibmveth: calculate gso_segs for large packets 2017-04-21 09:30:08 +02:00
nfc mei: bus: fix received data size check in NFC fixup 2016-11-18 10:48:36 +01:00
ntb ntb_transport: Pick an unused queue 2017-02-23 17:43:10 +01:00
nubus
nvdimm libnvdimm: fix reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat 2017-04-21 09:30:06 +02:00
nvme nvme: Call pci_disable_device on the error path. 2016-09-15 08:27:51 +02:00
nvmem nvmem: mxs-ocotp: fix buffer overflow in read 2016-05-11 11:21:21 +02:00
of of: silence warnings due to max() usage 2016-11-15 07:46:39 +01:00
oprofile
parisc parisc iommu: fix panic due to trying to allocate too large region 2015-12-12 16:07:25 +01:00
parport parport: fix attempt to write duplicate procfiles 2017-03-30 09:35:17 +02:00
pci PCI: Do any VF BAR updates before enabling the BARs 2017-03-30 09:35:20 +02:00
pcmcia pcmcia: db1xxx_ss: fix last irq_to_gpio user 2016-04-20 15:42:09 +09:00
perf drivers/perf: arm_pmu: Fix leak in error path 2016-10-07 15:23:41 +02:00
phy phy: core: fix wrong err handle for phy_power_on 2016-03-03 15:07:28 -08:00
pinctrl pinctrl: qcom: Don't clear status bit on irq_unmask 2017-03-31 09:49:53 +02:00
platform platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event 2017-04-21 09:30:07 +02:00
pnp PNP: Add Broadwell to Intel MCH size workaround 2016-08-16 09:30:48 +02:00
power power: reset: at91-poweroff: timely shutdown LPDDR memories 2017-04-08 09:53:32 +02:00
powercap powercap / RAPL: fix BIOS lock check 2015-12-12 02:31:11 +01:00
pps pps: do not crash when failed to register 2016-08-10 11:49:25 +02:00
ps3
ptp
pwm pwm: pca9685: Fix period change with same duty cycle 2017-03-15 09:57:14 +08:00
rapidio
ras
regulator regulator: Fix regulator_summary for deviceless consumers 2017-03-12 06:37:25 +01:00
remoteproc remoteproc: Fix potential race condition in rproc_add 2016-08-20 18:09:20 +02:00
reset
rpmsg
rtc rtc: tegra: Implement clock handling 2017-04-21 09:30:07 +02:00
s390 s390/zcrypt: Introduce CEX6 toleration 2017-03-30 09:35:20 +02:00
sbus
scsi scsi: sd: Fix capacity calculation with 32-bit sector_t 2017-04-21 09:30:05 +02:00
sfi
sh drivers: sh: Restore legacy clock domain on SuperH platforms 2016-03-09 15:34:49 -08:00
sn
soc soc: qcom/spm: shut up uninitialized variable warning 2016-09-24 10:07:42 +02:00
spi spi: mvebu: fix baudrate calculation for armada variant 2017-01-15 13:41:36 +01:00
spmi
ssb ssb: Fix error routine when fallback SPROM fails 2017-01-09 08:07:42 +01:00
staging staging: android: ashmem: lseek failed due to no FMODE_LSEEK. 2017-04-12 12:38:33 +02:00
target iscsi-target: Drop work-around for legacy GlobalSAN initiator 2017-04-21 09:30:05 +02:00
tc
thermal thermal: hwmon: Properly report critical temperature in sysfs 2017-01-09 08:07:44 +01:00
thunderbolt thunderbolt: Fix double free of drom buffer 2016-06-01 12:15:53 -07:00
tty tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done 2017-04-21 09:30:08 +02:00
uio uio: fix dmem_region_start computation 2016-10-31 04:13:59 -06:00
usb usb: hub: Wait for connection to be reestablished after port reset 2017-04-18 07:14:37 +02:00
uwb uwb: hwa-rc: fix NULL-deref at probe 2017-03-30 09:35:17 +02:00
vfio vfio/spapr: Postpone allocation of userspace version of TCE table 2017-03-30 09:35:20 +02:00
vhost vhost/scsi: fix reuse of &vq->iov[out] in response 2016-09-15 08:27:53 +02:00
video xen, fbfront: fix connecting to backend 2017-04-21 09:30:06 +02:00
virt
virtio virtio_balloon: init 1st buffer in stats vq 2017-03-31 09:49:53 +02:00
vlynq
vme vme: Fix wrong pointer utilization in ca91cx42_slave_get 2017-01-19 20:17:21 +01:00
w1 w1: ds2490: USB transfer buffers need to be DMAable 2017-03-12 06:37:29 +01:00
watchdog watchdog: rc32434_wdt: fix ioctl error handling 2016-04-12 09:08:54 -07:00
xen xen/acpi: upload PM state from init-domain to Xen 2017-03-30 09:35:18 +02:00
zorro
Kconfig
Makefile