crash_dump: is_kdump_kernel can be boolean (2650cb0c) · Commits · 戴 / test

include/linux/crash_dump.h

+6 −6

Original line number	Diff line number	Diff line
		@@ -2,13 +2,13 @@
		#ifndef LINUX_CRASH_DUMP_H
		#define LINUX_CRASH_DUMP_H

		#ifdef CONFIG_CRASH_DUMP
		#include <linux/kexec.h>
		#include <linux/proc_fs.h>
		#include <linux/elf.h>

		#include <asm/pgtable.h> /* for pgprot_t */

		#ifdef CONFIG_CRASH_DUMP
		#define ELFCORE_ADDR_MAX (-1ULL)
		#define ELFCORE_ADDR_ERR (-2ULL)

		@@ -52,13 +52,13 @@ void vmcore_cleanup(void);
		* has passed the elf core header address on command line.
		*
		* This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will
		* return 1 if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic of
		* previous kernel.
		* return true if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic
		* of previous kernel.
		*/

		static inline int is_kdump_kernel(void)
		static inline bool is_kdump_kernel(void)
		{
		return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0;
		return elfcorehdr_addr != ELFCORE_ADDR_MAX;
		}

		/* is_vmcore_usable() checks if the kernel is booting after a panic and
		@@ -89,7 +89,7 @@ extern int register_oldmem_pfn_is_ram(int (*fn)(unsigned long pfn));
		extern void unregister_oldmem_pfn_is_ram(void);

		#else /* !CONFIG_CRASH_DUMP */
		static inline int is_kdump_kernel(void) { return 0; }
		static inline bool is_kdump_kernel(void) { return 0; }
		#endif /* CONFIG_CRASH_DUMP */

		extern unsigned long saved_max_pfn;