Tejun Heo 8a32c441c1 freezer: implement and use kthread_freezable_should_stop() ... Writeback and thinkpad_acpi have been using thaw_process() to prevent deadlock between the freezer and kthread_stop(); unfortunately, this is inherently racy - nothing prevents freezing from happening between thaw_process() and kthread_stop(). This patch implements kthread_freezable_should_stop() which enters refrigerator if necessary but is guaranteed to return if kthread_stop() is invoked. Both thaw_process() users are converted to use the new function. Note that this deadlock condition exists for many of freezable kthreads. They need to be converted to use the new should_stop or freezable workqueue. Tested with synthetic test case. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br> Cc: Jens Axboe <axboe@kernel.dk> Cc: Oleg Nesterov <oleg@redhat.com>		2011-11-21 12:32:23 -08:00
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accessibility	…
acpi	ACPI / cpuidle: Remove acpi_idle_suspend (to fix suspend regression)	2011-11-12 21:30:14 -02:00
amba	…
ata	pata_of_platform: Don't use NO_IRQ	2011-11-10 15:57:59 -05:00
atm	…
auxdisplay	…
base	PM Sleep: Do not extend wakeup paths to devices with ignore_children set	2011-11-17 21:39:33 +01:00
bcma	…
block	paride: fix potential information leak in pg_read()	2011-11-16 09:21:50 +01:00
bluetooth	freezer: don't unnecessarily set PF_NOFREEZE explicitly	2011-11-21 12:32:22 -08:00
cdrom	…
char	fix typo/thinko in get_random_bytes()	2011-11-17 11:42:54 -02:00
clk	…
clocksource	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
connector	…
cpufreq	[CPUFREQ] db8500: fix build error due to undeclared i variable	2011-11-11 22:28:33 -05:00
cpuidle	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2011-11-07 10:13:52 -08:00
crypto	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dca	…
devfreq	PM / devfreq: correct Kconfig dependency	2011-11-14 23:31:35 +01:00
dio	…
dma	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
edac	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
eisa	…
firewire	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
firmware	drivers/firmware/dmi_scan.c: make dmi_name_in_vendors more focused	2011-11-15 22:41:51 -02:00
gpio	Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6	2011-11-15 14:45:50 -02:00
gpu	Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux	2011-11-15 22:43:32 -02:00
hid	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
hv	…
hwmon	hwmon: (exynos4_tmu) Fix Kconfig dependency	2011-11-17 03:16:19 -08:00
hwspinlock	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-08 18:34:16 -08:00
i2c	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
ide	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide	2011-11-18 22:04:12 -02:00
idle	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2011-11-07 10:13:52 -08:00
ieee802154	…
infiniband	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
input	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
iommu	iommu: omap: Fix compile failure	2011-11-08 17:11:57 +01:00
isdn	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
leds	Revert "leds: save the delay values after a successful call to blink_set()"	2011-11-15 22:41:50 -02:00
lguest	…
macintosh	m68k/irq: Remove obsolete IRQ_FLG_* users	2011-11-08 22:35:48 +01:00
mca	…
md	md/raid5: STRIPE_ACTIVE has lock semantics, add barriers	2011-11-08 16:22:06 +11:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2011-11-12 00:03:50 -02:00
memstick	…
message	…
mfd	freezer: don't unnecessarily set PF_NOFREEZE explicitly	2011-11-21 12:32:22 -08:00
misc	Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2011-11-18 07:16:10 -02:00
mmc	arm/imx: fix imx6q mmc error when mounting rootfs	2011-11-11 16:53:35 +01:00
mtd	MTD: MAPS: bcm963xx-flash.c: explicitly include module.h	2011-11-07 21:26:55 -05:00
net	freezer: unexport refrigerator() and update try_to_freeze() slightly	2011-11-21 12:32:22 -08:00
nfc	…
nubus	…
of	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
oprofile	…
parisc	…
parport	…
pci	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
pcmcia	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
pinctrl	pinctrl: hide subsystem from the populace	2011-11-10 09:02:12 +01:00
platform	freezer: implement and use kthread_freezable_should_stop()	2011-11-21 12:32:23 -08:00
pnp	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2011-11-07 10:13:52 -08:00
power	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
pps	pps gpio client: add missing dependency	2011-11-02 16:07:02 -07:00
ps3	powerpc/ps3: irq: Remove IRQF_DISABLED	2011-11-08 14:51:46 +11:00
ptp	…
rapidio	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
regulator	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
rtc	rtc: rtc-puv3: Add __devinit and __devexit markers for probe and remove	2011-11-15 17:13:17 +08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-11-20 14:59:33 -08:00
sbus	…
scsi	[SCSI] hpsa: Disable ASPM	2011-11-14 10:47:01 -06:00
sfi	…
sh	Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus	2011-11-11 16:16:25 +09:00
sn	…
spi	Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm	2011-11-20 14:34:58 -08:00
ssb	…
staging	freezer: don't unnecessarily set PF_NOFREEZE explicitly	2011-11-21 12:32:22 -08:00
target	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
tc	…
telephony	…
thermal	thermal: Prevent polling from happening during system suspend	2011-11-06 20:38:49 -05:00
tty	Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus	2011-11-11 16:16:25 +09:00
uio	…
usb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2011-11-20 14:59:33 -08:00
uwb	…
vhost	…
video	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
virt	…
virtio	virtio-pci: fix use after free	2011-11-14 11:16:26 +10:30
vlynq	…
w1	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
watchdog	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
xen	xen-gntalloc: signedness bug in add_grefs()	2011-11-16 12:13:48 -05:00
zorro	…
Kconfig	…
Makefile	…