diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/e820.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index a5383ae2cbe..28c29180b38 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -1049,11 +1049,6 @@ u64 __init early_reserve_e820(u64 startt, u64 sizet, u64 align) #endif /* - * Last pfn which the user wants to use. - */ -unsigned long __initdata end_user_pfn = MAX_ARCH_PFN; - -/* * Find the highest page frame number we have available */ static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type) @@ -1085,8 +1080,6 @@ static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type) if (last_pfn > max_arch_pfn) last_pfn = max_arch_pfn; - if (last_pfn > end_user_pfn) - last_pfn = end_user_pfn; printk(KERN_INFO "last_pfn = %#lx max_arch_pfn = %#lx\n", last_pfn, max_arch_pfn); @@ -1131,12 +1124,6 @@ int __init e820_find_active_region(const struct e820entry *ei, if (*ei_endpfn > last_pfn) *ei_endpfn = last_pfn; - /* Obey end_user_pfn to save on memmap */ - if (*ei_startpfn >= end_user_pfn) - return 0; - if (*ei_endpfn > end_user_pfn) - *ei_endpfn = end_user_pfn; - return 1; } @@ -1201,7 +1188,6 @@ static int __init parse_memopt(char *p) userdef = 1; mem_size = memparse(p, &p); - end_user_pfn = mem_size>>PAGE_SHIFT; e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1); return 0; @@ -1245,10 +1231,9 @@ static int __init parse_memmap_opt(char *p) } else if (*p == '$') { start_at = memparse(p+1, &p); e820_add_region(start_at, mem_size, E820_RESERVED); - } else { - end_user_pfn = (mem_size >> PAGE_SHIFT); + } else e820_remove_range(mem_size, ULLONG_MAX - mem_size, E820_RAM, 1); - } + return *p == '\0' ? 0 : -EINVAL; } early_param("memmap", parse_memmap_opt); |