x86/crashdump/32: Simplify copy_oldmem_page()

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Replace kmap_atomic_pfn() with kmap_local_pfn() which is preemptible and
can take page faults.

Remove the indirection of the dump page and the related cruft which is not
longer required.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20201118204007.670851839@linutronix.de

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Thomas Gleixner 2020-11-18 20:48:46 +01:00

parent e66f6e0954

commit 7e015a2798

1 changed files with 10 additions and 38 deletions

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arch/x86/kernel/crash_dump_32.c

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