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e59a175faa
linux/arch/powerpc
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Nathan Lynch e59a175faa powerpc/pseries/mobility: prevent cpu hotplug during DT update 
CPU online/offline code paths are sensitive to parts of the device
tree (various cpu node properties, cache nodes) that can be changed as
a result of a migration.

Prevent CPU hotplug while the device tree potentially is inconsistent.

Fixes: 410bccf978 ("powerpc/pseries: Partition migration in the kernel")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-15 16:52:07 +10:00
..
boot treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 2019-05-24 17:27:12 +02:00
configs This pull request contains the following changes for MTD: 2019-05-12 17:57:52 -04:00
crypto treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
include powerpc/powernv: Show checkstop reason for NPU2 HMIs 2019-06-02 19:39:36 +10:00
kernel powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild 2019-06-15 16:52:06 +10:00
kvm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
lib powerpc/lib: only build ldstfp.o when CONFIG_PPC_FPU is set 2019-05-28 12:08:11 +10:00
math-emu powerpc: math-emu: remove unneeded header search paths 2019-01-14 20:39:27 +11:00
mm powerpc/mm: Make some symbols static that can be 2019-05-28 12:08:10 +10:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2019-03-16 12:20:08 -07:00
oprofile Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
perf treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 112 2019-05-24 17:39:01 +02:00
platforms powerpc/pseries/mobility: prevent cpu hotplug during DT update 2019-06-15 16:52:07 +10:00
purgatory powerpc: disable KASAN instrumentation on early/critical files. 2019-05-03 01:20:26 +10:00
sysdev powerpc/pseries: Fix xive=off command line 2019-06-02 19:39:36 +10:00
tools powerpc/tools/checkpatch: Ignore DT_SPLIT_BINDING_PATCH 2018-12-04 19:45:01 +11:00
xmon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 76 2019-05-24 17:37:51 +02:00
Kbuild powerpc: Add -Werror at arch/powerpc level 2018-10-19 00:56:17 +11:00
Kconfig mm: memblock: make keeping memblock memory opt-in rather than opt-out 2019-05-14 09:47:50 -07:00
Kconfig.debug powerpc/xmon: add read-only mode 2019-05-03 02:54:57 +10:00
Makefile treewide: prefix header search paths with $(srctree)/ 2019-05-18 11:49:57 +09:00
Makefile.postlink