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384dfd627f
linux/arch/powerpc
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Sukadev Bhattiprolu 384dfd627f powerpc/kernel: Block interrupts when updating TIDR 
clear_thread_tidr() is called in interrupt context as a part of delayed
put of the task structure (i.e as a part of timer interrupt). To prevent
a deadlock, block interrupts when holding vas_thread_id_lock to set/
clear TIDR for a task.

Fixes: ec233ede4c ("powerpc: Add support for setting SPRN_TIDR")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-01-27 20:54:57 +11:00
..
boot powerpc/boot/dts: Remove leading 0x and 0s from bindings notation 2018-01-21 23:37:45 +11:00
configs powerpc: Add aacraid and nvme to powernv_defconfig 2018-01-16 23:47:15 +11:00
crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
include powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn 2018-01-27 20:39:01 +11:00
kernel powerpc/kernel: Block interrupts when updating TIDR 2018-01-27 20:54:57 +11:00
kvm powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
lib Merge branch 'fixes' into next 2018-01-21 23:21:14 +11:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm powerpc/mm/nohash: do not flush the entire mm when range is a single page 2018-01-27 20:24:44 +11:00
net powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
oprofile treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
perf Merge branch 'fixes' into next 2018-01-21 23:21:14 +11:00
platforms powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn 2018-01-27 20:39:01 +11:00
purgatory License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysdev powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xmon powerpc/64s: Improve RFI L1-D cache flush fallback 2018-01-23 16:16:33 +11:00
Kconfig Merge branch 'fixes' into next 2018-01-21 23:21:14 +11:00
Kconfig.debug powerpc: Add new kconfig CONFIG_PPC_IRQ_SOFT_MASK_DEBUG 2018-01-19 22:37:03 +11:00
Makefile powerpc/modules: Fix alignment of .toc section in kernel modules 2017-12-11 13:03:35 +11:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00