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Seiji Aguchi dd230fecab efi_pstore: Add a logic erasing entries to an erase callback 
[Issue]

Currently, efi_pstore driver simply overwrites existing panic messages in NVRAM.
So, in the following scenario, we will lose 1st panic messages.

 1. kernel panics.
 2. efi_pstore is kicked and writes panic messages to NVRAM.
 3. system reboots.
 4. kernel panics again before a user checks the 1st panic messages in NVRAM.

[Solution]

A reasonable solution to fix the issue is just holding multiple logs without erasing
existing entries.

This patch freshly adds a logic erasing existing entries, which shared with a write callback,
to an erase callback.
To support holding multiple logs, the write callback doesn't need to erase any entries and
it will be removed in a subsequent patch.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2012-11-26 16:01:56 -08:00
..
accessibility
acpi ACPI video: Ignore errors after _DOD evaluation. 2012-11-03 09:52:54 +08:00
amba
ata SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
atm
auxdisplay
base PM / QoS: fix wrong error-checking condition 2012-11-23 20:55:06 +01:00
bcma bcma: fix unregistration of cores 2012-10-15 14:45:51 -04:00
block mtip32xx: Fix padding issue 2012-11-23 14:32:55 +01:00
bluetooth Bluetooth: ath3k: Add support for VAIO VPCEH [0489:e027] 2012-11-09 16:45:37 +01:00
bus drivers: bus: ocp2scp: add pdata support 2012-11-07 09:35:53 -08:00
cdrom
char sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP 2012-10-25 12:05:50 -07:00
clk clk: ux500: Register slimbus clock lookups for u8500 2012-11-12 10:20:23 -08:00
clocksource
connector
cpufreq cpufreq / powernow-k8: Change maintainer's email address 2012-10-31 21:02:57 +01:00
cpuidle ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug 2012-10-08 22:52:54 -04:00
crypto
dca
devfreq
dio
dma Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma 2012-10-26 14:59:01 -07:00
edac EDAC: Change Boris' email address 2012-10-30 10:05:51 +01:00
eisa
extcon extcon : register for cable interest by cable name 2012-10-23 16:32:18 +09:00
firewire [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
firmware efi_pstore: Add a logic erasing entries to an erase callback 2012-11-26 16:01:56 -08:00
gpio gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m 2012-11-17 22:22:24 +01:00
gpu Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2012-11-22 13:21:57 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-11-16 07:58:20 -08:00
hsi
hv Drivers: hv: Cleanup error handling in vmbus_open() 2012-10-24 15:46:27 -07:00
hwmon hwmon: Fix chip feature table headers 2012-11-05 21:54:40 +01:00
hwspinlock
i2c Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux 2012-11-23 11:59:26 -10:00
ide
idle
iio iio: Remove duplicates for light/ in Kconfig and Makefile 2012-10-19 19:44:06 +01:00
infiniband Merge branches 'cxgb4' and 'mlx4' into for-next 2012-10-23 09:03:49 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-11-22 21:45:34 -10:00
iommu intel-iommu: Fix lookup in add device 2012-11-17 13:27:15 +01:00
irqchip irqchip: irq-bcm2835: Add terminating entry for of_device_id table 2012-11-06 07:37:10 -08:00
isdn isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES 2012-11-07 18:59:26 -05:00
leds ledtrig-cpu: kill useless mutex to fix sleep in atomic context 2012-11-11 12:09:43 -08:00
lguest
macintosh
md Several bug fixes for md in 3.7 2012-11-23 12:11:13 -10:00
media [media] Kconfig: Fix dependencies for driver autoselect options 2012-10-17 16:45:56 -03:00
memory
memstick
message
mfd
misc pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
mmc mmc: sdhci-s3c: fix the card detection in runtime-pm 2012-11-07 15:40:52 -05:00
mtd Merge branch 'for-3.7' of git://git.infradead.org/users/dedekind/l2-mtd 2012-11-21 10:38:13 +00:00
net bnx2x: remove redundant warning log 2012-11-23 14:17:36 -05:00
nfc NFC: Fix pn533 target mode memory leak 2012-11-20 00:09:26 +01:00
nubus
of of/platform: sparse fix 2012-10-17 15:53:03 -05:00
oprofile mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file 2012-10-09 16:22:18 +09:00
parisc
parport Xtensa patchset for 3.7 2012-10-09 16:11:46 +09:00
pci PCI/portdrv: Don't create hotplug slots unless port supports hotplug 2012-11-05 16:59:59 -07:00
pcmcia Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes 2012-10-19 15:40:18 -07:00
pinctrl pinctrl/samsung: don't allow enabling pinctrl-samsung standalone 2012-11-15 11:58:24 +01:00
platform Merge branches 'fixes-for-37', 'ec' and 'thermal' into release 2012-10-09 01:47:35 -04:00
pnp
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-10-13 11:27:59 +09:00
pps
ps3
ptp
pwm pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
rapidio rapidio: fix kernel-doc warnings 2012-11-16 14:33:04 -08:00
regulator Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp 2012-11-15 11:16:02 +09:00
remoteproc
rpmsg
rtc drivers/rtc/rtc-imxdi.c: add missing spin lock initialization 2012-10-25 14:37:53 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-16 14:10:15 -08:00
sbus
scsi [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
sfi
sh sh: Fix up more fallout from pointless ARM __iomem churn. 2012-10-15 14:08:48 +09:00
sn
spi spi: Some minor MXS fixes 2012-10-28 11:13:54 -07:00
ssb
staging Revert "Staging: Android alarm: IOCTL command encoding fix" 2012-11-13 13:04:43 -08:00
target target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path 2012-11-01 00:38:45 -07:00
tc
thermal exynos4_tmu_driver_ids should be exynos_tmu_driver_ids. 2012-11-03 09:52:55 +08:00
tty tty: serial: max310x: Add terminating entry for spi_device_id table 2012-11-14 14:49:42 -08:00
uio mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
usb SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
uwb
vfio vfio: Fix PCI INTx disable consistency 2012-10-10 09:10:32 -06:00
vhost vhost: fix mergeable bufs on BE hosts 2012-10-24 23:19:30 -04:00
video omapdss fixes for 3.7-rc 2012-11-23 12:01:02 -10:00
virt
virtio virtio: Don't access index after unregister. 2012-11-09 14:54:24 +10:30
vlynq
vme
w1
watchdog
xen Bug-fix: 2012-11-20 18:52:01 -10:00
zorro
Kconfig
Makefile IPMI: Change link order 2012-10-16 18:07:12 -07:00