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android_kernel_motorola_sm6375/drivers/watchdog
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Filename Latest commit message Latest commit date
Srivatsa S. Bhat 99c3bf361a octeon, watchdog: Fix CPU hotplug callback registration 
Subsystems that want to register CPU hotplug callbacks, as well as perform
initialization for the CPUs that are already online, often do it as shown
below:

	get_online_cpus();

	for_each_online_cpu(cpu)
		init_cpu(cpu);

	register_cpu_notifier(&foobar_cpu_notifier);

	put_online_cpus();

This is wrong, since it is prone to ABBA deadlocks involving the
cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently
with CPU hotplug operations).

Instead, the correct and race-free way of performing the callback
registration is:

	cpu_notifier_register_begin();

	for_each_online_cpu(cpu)
		init_cpu(cpu);

	/* Note the use of the double underscored version of the API */
	__register_cpu_notifier(&foobar_cpu_notifier);

	cpu_notifier_register_done();

Fix the watchdog code in octeon by using this latter form of callback
registration.

Cc: Wim Van Sebroeck <[email protected]>
Cc: Ingo Molnar <[email protected]>
Signed-off-by: Srivatsa S. Bhat <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
2014-03-20 13:43:46 +01:00
..
acquirewdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
advantechwdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
alim1535_wdt.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
alim7101_wdt.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
ar7_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
at32ap700x_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
at91rm9200_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
at91sam9_wdt.c watchdog: at91sam9_wdt: increase security margin on watchdog counter reset 2014-01-28 21:34:55 +01:00
at91sam9_wdt.h
ath79_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
bcm47xx_wdt.c watchdog: bcm47xx_wdt.c: add hard timer 2013-03-01 12:47:31 +01:00
bcm63xx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
bcm2835_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
bcm_kona_wdt.c watchdog: bcm281xx: Debugfs support 2014-01-28 21:17:53 +01:00
bfin_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
booke_wdt.c powerpc/watchdog: Don't enable interrupt on PPC64 BookE 2013-06-25 18:14:45 -05:00
coh901327_wdt.c watchdog: coh901327: devicetree support 2013-05-31 11:25:52 +02:00
cpu5wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
cpwd.c watchdog: cpwd: use platform_{get,set}_drvdata() 2013-07-11 21:07:24 +02:00
da9052_wdt.c watchdog: da9052: use platform_{get,set}_drvdata() 2013-07-11 21:08:01 +02:00
da9055_wdt.c watchdog: da9055: use platform_{get,set}_drvdata() 2013-07-11 21:08:27 +02:00
davinci_wdt.c watchdog: davinci: reuse driver for keystone arch 2014-01-28 21:20:05 +01:00
dw_wdt.c watchdog: dw_wdt: remove build dependencies 2014-01-28 21:25:46 +01:00
ep93xx_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
eurotechwdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
f71808e_wdt.c
gef_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
geodewdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
gpio_wdt.c watchdog: GPIO-controlled watchdog 2014-01-28 21:21:02 +01:00
hpwdt.c watchdog: hpwdt patch to display informative string 2014-01-28 21:26:10 +01:00
i6300esb.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
ib700wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
ibmasr.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
ie6xx_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
imx2_wdt.c watchdog: imx2_wdt: disable watchdog timer during low power mode 2014-01-28 21:25:20 +01:00
indydog.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
intel_scu_watchdog.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
intel_scu_watchdog.h
iop_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
it87_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
it8712f_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
iTCO_vendor.h
iTCO_vendor_support.c
iTCO_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
ixp4xx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
jz4740_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
Kconfig watchdog: dw_wdt: Add dependency on HAS_IOMEM 2014-02-08 09:47:11 +01:00
kempld_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
ks8695_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
lantiq_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
m54xx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
machzwd.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
Makefile watchdog: GPIO-controlled watchdog 2014-01-28 21:21:02 +01:00
max63xx_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
mena21_wdt.c watchdog: New watchdog driver for MEN A21 watchdogs 2013-07-11 22:19:05 +02:00
mixcomwd.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
moxart_wdt.c watchdog: mach-moxart: add restart handler 2014-01-28 21:27:32 +01:00
mpc8xxx_wdt.c watchdog: mpc8xxx_wdt convert to watchdog core 2014-01-28 21:27:08 +01:00
mtx-1_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
mv64x60_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
nuc900_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
nv_tco.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
nv_tco.h
octeon-wdt-main.c octeon, watchdog: Fix CPU hotplug callback registration 2014-03-20 13:43:46 +01:00
octeon-wdt-nmi.S
of_xilinx_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
omap_wdt.c watchdog: omap_wdt: raw read and write endian fix 2013-11-17 19:42:38 +01:00
omap_wdt.h
orion_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
pc87413_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
pcwd.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
pcwd_pci.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
pcwd_usb.c Watchdog: pcwd_usb: remove CONFIG_USB_DEBUG usage 2014-01-07 16:15:39 -08:00
pika_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
pnx833x_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
pnx4008_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
rc32434_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
rdc321x_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
retu_wdt.c watchdog: introduce retu_wdt driver 2013-03-01 12:31:14 +01:00
riowd.c watchdog: riowd: use platform_{get,set}_drvdata() 2013-07-11 20:57:25 +02:00
rt2880_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
s3c2410_wdt.c watchdog: s3c2410_wdt: Report when the watchdog reset the system 2014-01-28 21:24:33 +01:00
sa1100_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sb_wdog.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc60xxwdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc7240_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc8360.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc_epx_c3.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sbc_fitpc2_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sc520_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
sc1200wdt.c sc1200_wdt: Fix oops 2013-12-10 08:48:15 +01:00
sch311x_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
scx200_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
shwdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
sirfsoc_wdt.c watchdog: sirf: Remove redundant of_match_ptr helper 2014-01-28 21:26:31 +01:00
smsc37b787_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
softdog.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
sp805_wdt.c watchdog: sp805_wdt: Remove unnecessary amba_set_drvdata() 2013-11-17 19:37:31 +01:00
sp5100_tco.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
sp5100_tco.h watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2 2013-03-22 23:21:55 +01:00
stmp3xxx_rtc_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
sunxi_wdt.c watchdog: Remove redundant of_match_ptr 2013-11-17 19:37:11 +01:00
ts72xx_wdt.c watchdog: ts72xx_wdt: Propagate return value from timeout_to_regval 2013-11-17 19:38:02 +01:00
twl4030_wdt.c watchdog: twl4030: Remove redundant platform_set_drvdata() 2013-07-11 21:10:13 +02:00
txx9wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
ux500_wdt.c watchdog: Drop unnecessary include of miscdevice.h 2013-12-10 08:48:09 +01:00
via_wdt.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
w83627hf_wdt.c watchdog: w83627hf_wdt: Reset watchdog trigger during initialization 2014-01-28 21:35:40 +01:00
w83697hf_wdt.c watchdog: w83697hf_wdt: return ENODEV if no device was found 2014-02-21 20:36:46 +01:00
w83697ug_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
w83877f_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
w83977f_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wafer5823wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
watchdog_core.c watchdog: core: Make dt "timeout-sec" property work on drivers w/out min/max 2014-01-28 19:07:56 +01:00
watchdog_core.h
watchdog_dev.c watchdog: core: don't try to stop device if not running 2013-07-11 21:14:39 +02:00
wd501p.h
wdrtas.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt285.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt977.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00
wdt_pci.c watchdog: remove DEFINE_PCI_DEVICE_TABLE macro 2014-01-28 19:07:07 +01:00
wm831x_wdt.c watchdog: use dev_get_platdata() 2013-11-17 19:34:20 +01:00
wm8350_wdt.c
xen_wdt.c watchdog: Get rid of MODULE_ALIAS_MISCDEV statements 2013-11-17 19:38:13 +01:00