diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index a2574f192bb0..f1e0ba5a5c3a 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -502,12 +502,10 @@ static void __init setup_resources(void) } } -unsigned long real_memory_size; -EXPORT_SYMBOL_GPL(real_memory_size); - static void __init setup_memory_end(void) { unsigned long vmax, vmalloc_size, tmp; + unsigned long real_memory_size = 0; int i; @@ -517,7 +515,6 @@ static void __init setup_memory_end(void) memory_end_set = 1; } #endif - real_memory_size = 0; memory_end &= PAGE_MASK; /* @@ -719,16 +716,22 @@ static struct notifier_block kdump_mem_nb = { static void reserve_oldmem(void) { #ifdef CONFIG_CRASH_DUMP + unsigned long real_size = 0; + int i; + if (!OLDMEM_BASE) return; + for (i = 0; i < MEMORY_CHUNKS; i++) { + struct mem_chunk *chunk = &memory_chunk[i]; + real_size = max(real_size, chunk->addr + chunk->size); + } reserve_kdump_bootmem(OLDMEM_BASE, OLDMEM_SIZE, CHUNK_OLDMEM); - reserve_kdump_bootmem(OLDMEM_SIZE, memory_end - OLDMEM_SIZE, - CHUNK_OLDMEM); - if (OLDMEM_BASE + OLDMEM_SIZE == real_memory_size) + reserve_kdump_bootmem(OLDMEM_SIZE, real_size - OLDMEM_SIZE, CHUNK_OLDMEM); + if (OLDMEM_BASE + OLDMEM_SIZE == real_size) saved_max_pfn = PFN_DOWN(OLDMEM_BASE) - 1; else - saved_max_pfn = PFN_DOWN(real_memory_size) - 1; + saved_max_pfn = PFN_DOWN(real_size) - 1; #endif } |