This reverts commit 0549a3c02efb350776bc869685a361045efd3a29. Commit 0549a3c tells user space utility - makedumpfile the randomized base address of these memmory sections when mm kaslr enabled. However below patchset makes makedumpfile not need them any more. Besides we should use VMCOREINFO_NUMBER to export value of variable so that we can use the existing number_table mechanism of Makedumpfile to fetch it. So revert it now. If needed, can add it later.
http://lists.infradead.org/pipermail/kexec/2016-October/017540.html Signed-off-by: Baoquan He <[email protected]> --- arch/x86/kernel/machine_kexec_64.c | 3 --- include/linux/kexec.h | 6 ------ 2 files changed, 9 deletions(-) diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index 8c1f218..5a294e4 100644 --- a/arch/x86/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c @@ -337,9 +337,6 @@ void arch_crash_save_vmcoreinfo(void) #endif vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset()); - VMCOREINFO_PAGE_OFFSET(PAGE_OFFSET); - VMCOREINFO_VMALLOC_START(VMALLOC_START); - VMCOREINFO_VMEMMAP_START(VMEMMAP_START); } /* arch-dependent functionality related to kexec file-based syscall */ diff --git a/include/linux/kexec.h b/include/linux/kexec.h index 406c33d..d743777 100644 --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -259,12 +259,6 @@ phys_addr_t paddr_vmcoreinfo_note(void); vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name) #define VMCOREINFO_CONFIG(name) \ vmcoreinfo_append_str("CONFIG_%s=y\n", #name) -#define VMCOREINFO_PAGE_OFFSET(value) \ - vmcoreinfo_append_str("PAGE_OFFSET=%lx\n", (unsigned long)value) -#define VMCOREINFO_VMALLOC_START(value) \ - vmcoreinfo_append_str("VMALLOC_START=%lx\n", (unsigned long)value) -#define VMCOREINFO_VMEMMAP_START(value) \ - vmcoreinfo_append_str("VMEMMAP_START=%lx\n", (unsigned long)value) extern struct kimage *kexec_image; extern struct kimage *kexec_crash_image; -- 2.5.5
