diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/kexec.c | 12 | ||||
| -rw-r--r-- | kernel/kexec_core.c | 11 |
2 files changed, 2 insertions, 21 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index b73dc211fcfd..4384672d3245 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -136,9 +136,6 @@ static int do_kexec_load(unsigned long entry, unsigned long nr_segments, if (ret) return ret; - if (flags & KEXEC_ON_CRASH) - crash_map_reserved_pages(); - if (flags & KEXEC_PRESERVE_CONTEXT) image->preserve_context = 1; @@ -161,12 +158,6 @@ out: if ((flags & KEXEC_ON_CRASH) && kexec_crash_image) arch_kexec_protect_crashkres(); - /* - * Once the reserved memory is mapped, we should unmap this memory - * before returning - */ - if (flags & KEXEC_ON_CRASH) - crash_unmap_reserved_pages(); kimage_free(image); return ret; } @@ -232,9 +223,6 @@ SYSCALL_DEFINE4(kexec_load, unsigned long, entry, unsigned long, nr_segments, result = do_kexec_load(entry, nr_segments, segments, flags); - if ((flags & KEXEC_ON_CRASH) && kexec_crash_image) - arch_kexec_protect_crashkres(); - mutex_unlock(&kexec_mutex); return result; diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index 48b73cc8e425..56b3ed0927b0 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -954,7 +954,6 @@ int crash_shrink_memory(unsigned long new_size) start = roundup(start, KEXEC_CRASH_MEM_ALIGN); end = roundup(start + new_size, KEXEC_CRASH_MEM_ALIGN); - crash_map_reserved_pages(); crash_free_reserved_phys_range(end, crashk_res.end); if ((start == end) && (crashk_res.parent != NULL)) @@ -968,7 +967,6 @@ int crash_shrink_memory(unsigned long new_size) crashk_res.end = end - 1; insert_resource(&iomem_resource, ram_res); - crash_unmap_reserved_pages(); unlock: mutex_unlock(&kexec_mutex); @@ -1553,17 +1551,12 @@ int kernel_kexec(void) } /* - * Add and remove page tables for crashkernel memory + * Protection mechanism for crashkernel reserved memory after + * the kdump kernel is loaded. * * Provide an empty default implementation here -- architecture * code may override this */ -void __weak crash_map_reserved_pages(void) -{} - -void __weak crash_unmap_reserved_pages(void) -{} - void __weak arch_kexec_protect_crashkres(void) {} |