powerpc/fadump: make is_kdump_kernel() return false when fadump is active

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Currently, is_kdump_kernel() returns true in crash dump capture kernel
for both kdump and fadump crash dump capturing methods, as both these
methods set elfcorehdr_addr. Some restrictions enforced for crash dump
capture kernel, based on is_kdump_kernel(), are specifically meant for
kdump case and not desirable for fadump - eg. IO queues restriction in
device drivers. So, define is_kdump_kernel() to return false when f/w
assisted dump is active.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230912082950.856977-2-hbathini@linux.ibm.com

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Hari Bathini 2023-09-12 13:59:50 +05:30 • committed by Michael Ellerman

parent 86328b338c

commit b098f1c323

2 changed files with 18 additions and 2 deletions

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8

arch/powerpc/include/asm/kexec.h

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12

arch/powerpc/kernel/crash_dump.c

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