cc57165874
- In case of system crash, current state of cpu registers is saved in memory in elf note format. So far memory for storing elf notes was being allocated statically for NR_CPUS. - This patch introduces dynamic allocation of memory for storing elf notes. It uses alloc_percpu() interface. This should lead to better memory usage. - Introduced based on Andi Kleen's and Eric W. Biederman's suggestions. - This patch also moves memory allocation for elf notes from architecture dependent portion to architecture independent portion. Now crash_notes is architecture independent. The whole idea is that size of memory to be allocated per cpu (MAX_NOTE_BYTES) can be architecture dependent and allocation of this memory can be architecture independent. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
15 lines
241 B
C
15 lines
241 B
C
/*
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* arch/s390/kernel/crash.c
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*
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* (C) Copyright IBM Corp. 2005
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*
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* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
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*
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*/
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#include <linux/threads.h>
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#include <linux/kexec.h>
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void machine_crash_shutdown(struct pt_regs *regs)
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{
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}
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