diff options
Diffstat (limited to 'arch/x86/kernel/e820.c')
| -rw-r--r-- | arch/x86/kernel/e820.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 50895c2f937d..666e4af145a2 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -14,6 +14,7 @@ #include <linux/acpi.h> #include <linux/firmware-map.h> #include <linux/sort.h> +#include <linux/memory_hotplug.h> #include <asm/e820/api.h> #include <asm/setup.h> @@ -671,21 +672,18 @@ __init void e820__reallocate_tables(void) int size; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table, size); e820_table = n; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_kexec->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table_kexec, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table_kexec, size); e820_table_kexec = n; size = offsetof(struct e820_table, entries) + sizeof(struct e820_entry)*e820_table_firmware->nr_entries; - n = kmalloc(size, GFP_KERNEL); + n = kmemdup(e820_table_firmware, size, GFP_KERNEL); BUG_ON(!n); - memcpy(n, e820_table_firmware, size); e820_table_firmware = n; } @@ -881,6 +879,10 @@ static int __init parse_memopt(char *p) e820__range_remove(mem_size, ULLONG_MAX - mem_size, E820_TYPE_RAM, 1); +#ifdef CONFIG_MEMORY_HOTPLUG + max_mem_size = mem_size; +#endif + return 0; } early_param("mem", parse_memopt); |