kdump x86: fix total mem size calculation for reservation
[~shefty/rdma-dev.git] / arch / x86 / kernel / setup.c
index 88638883176a13052a251704504ec23ab129155b..ab77aae4ad9bd4f9193b6e18e06262286178439f 100644 (file)
@@ -509,15 +509,6 @@ static void __init memblock_x86_reserve_range_setup_data(void)
 
 #ifdef CONFIG_KEXEC
 
-static inline unsigned long long get_total_mem(void)
-{
-       unsigned long long total;
-
-       total = max_pfn - min_low_pfn;
-
-       return total << PAGE_SHIFT;
-}
-
 /*
  * Keep the crash kernel below this limit.  On 32 bits earlier kernels
  * would limit the kernel to the low 512 MiB due to mapping restrictions.
@@ -536,7 +527,7 @@ static void __init reserve_crashkernel(void)
        unsigned long long crash_size, crash_base;
        int ret;
 
-       total_mem = get_total_mem();
+       total_mem = memblock_phys_mem_size();
 
        ret = parse_crashkernel(boot_command_line, total_mem,
                        &crash_size, &crash_base);