Vegard Nossum b0f5a8f32e kthread: fix boot hang (regression) on MIPS/OpenRISC ... This fixes a regression in commit 4d6501dce0 where I didn't notice that MIPS and OpenRISC were reinitialising p->{set,clear}_child_tid to NULL after our initialisation in copy_process(). We can simply get rid of the arch-specific initialisation here since it is now always done in copy_process() before hitting copy_thread{,_tls}(). Review notes: - As far as I can tell, copy_process() is the only user of copy_thread_tls(), which is the only caller of copy_thread() for architectures that don't implement copy_thread_tls(). - After this patch, there is no arch-specific code touching p->set_child_tid or p->clear_child_tid whatsoever. - It may look like MIPS/OpenRISC wanted to always have these fields be NULL, but that's not true, as copy_process() would unconditionally set them again _after_ calling copy_thread_tls() before commit 4d6501dce0. Fixes: 4d6501dce0 ("kthread: Fix use-after-free if kthread fork fails") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> # MIPS only Acked-by: Stafford Horne <shorne@gmail.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: Jonas Bonn <jonas@southpole.se> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: openrisc@lists.librecores.org Cc: Jamie Iles <jamie.iles@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-05-29 09:40:54 -07:00
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alchemy
ar7
ath25
ath79
bcm47xx
bcm63xx
bmips
boot	devicetree: Move include prefixes from arch to separate directory	2017-05-18 23:55:48 -07:00
cavium-octeon	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
cobalt
configs	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
dec	format-security: move static strings to const	2017-05-08 17:15:14 -07:00
emma
fw
generic
include	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
jazz
jz4740
kernel	kthread: fix boot hang (regression) on MIPS/OpenRISC	2017-05-29 09:40:54 -07:00
kvm	KVM: add kvm_{test,clear}_request to replace {test,clear}_bit	2017-04-27 14:12:22 +02:00
lantiq
lasat
lib
loongson32
loongson64
math-emu
mm	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
mti-malta	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
net
netlogic
oprofile
paravirt
pci	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
pic32
pistachio
pmcs-msp71xx
pnx833x
power
ralink	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-01 16:15:18 -07:00
rb532
sgi-ip22
sgi-ip27
sgi-ip32
sibyte	MIPS: Sibyte: Export symbol periph_rev to sb1250-mac network driver.	2017-04-21 03:23:24 +02:00
sni
txx9
vdso
vr41xx
xilfpga
Kbuild
Kbuild.platforms
Kconfig	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
Kconfig.debug	MIPS: Sibyte: Fix Kconfig warning.	2017-04-21 03:34:01 +02:00
Makefile
Makefile.postlink