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authorAlexander Gordeev <agordeev@linux.ibm.com>2022-08-06 09:29:46 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-08-17 14:24:30 +0200
commit276e1cac808587bf4a49b26fc13b386ca52ad5e4 (patch)
tree7bd03658da1ca5b8a7f94d794f230052b9c72f1c
parent93d28e50cf7260ef66786fb9ca47c97670831748 (diff)
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Revert "s390/smp: enforce lowcore protection on CPU restart"
commit 953503751a426413ea8aee2299ae3ee971b70d9b upstream. This reverts commit 6f5c672d17f583b081e283927f5040f726c54598. This breaks normal crash dump when CPU0 is offline. Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/s390/kernel/setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index c8e7b3db82e2..6b1a8697fae8 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -507,8 +507,8 @@ static void __init setup_lowcore_dat_on(void)
S390_lowcore.svc_new_psw.mask |= PSW_MASK_DAT;
S390_lowcore.program_new_psw.mask |= PSW_MASK_DAT;
S390_lowcore.io_new_psw.mask |= PSW_MASK_DAT;
- __ctl_set_bit(0, 28);
__ctl_store(S390_lowcore.cregs_save_area, 0, 15);
+ __ctl_set_bit(0, 28);
put_abs_lowcore(restart_flags, RESTART_FLAG_CTLREGS);
put_abs_lowcore(program_new_psw, lc->program_new_psw);
for (cr = 0; cr < ARRAY_SIZE(lc->cregs_save_area); cr++)