提交 1d6225e8 编写于 作者: C Cliff Wickman 提交者: H. Peter Anvin

x86, UV: Make kdump avoid stack dumps - fix !CONFIG_KEXEC breakage

This replaces Version 1 of this patch, which broke the build when
CONFIG_KEXEC and CONFIG_CRASH_DUMP were configured off.  In that case
the storage for the 'in_crash_kexec' flag was never built.

This version defines that flag as 0 if CONFIG_KEXEC is not set.
The patch is tested with all combinations of those two options.
Signed-off-by: NCliff Wickman <cpw@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <E1OiZcw-0001Hb-2g@eag09.americas.sgi.com>
Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
上级 c4026cfd
...@@ -33,6 +33,11 @@ extern void __show_regs(struct pt_regs *regs, int all); ...@@ -33,6 +33,11 @@ extern void __show_regs(struct pt_regs *regs, int all);
extern void show_regs(struct pt_regs *regs); extern void show_regs(struct pt_regs *regs);
extern unsigned long oops_begin(void); extern unsigned long oops_begin(void);
extern void oops_end(unsigned long, struct pt_regs *, int signr); extern void oops_end(unsigned long, struct pt_regs *, int signr);
#ifdef CONFIG_KEXEC
extern int in_crash_kexec; extern int in_crash_kexec;
#else
/* no crash dump is ever in progress if no crash kernel can be kexec'd */
#define in_crash_kexec 0
#endif
#endif /* _ASM_X86_KDEBUG_H */ #endif /* _ASM_X86_KDEBUG_H */
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