diff options
| -rw-r--r-- | arch/x86/include/asm/processor.h | 9 | ||||
| -rw-r--r-- | arch/x86/kernel/ptrace.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/fault.c | 2 | ||||
| -rw-r--r-- | arch/x86/vdso/vma.c | 4 |
4 files changed, 9 insertions, 8 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 72914d0315e9..c7a98f738210 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h | |||
| @@ -861,6 +861,7 @@ static inline void spin_lock_prefetch(const void *x) | |||
| 861 | * User space process size: 3GB (default). | 861 | * User space process size: 3GB (default). |
| 862 | */ | 862 | */ |
| 863 | #define TASK_SIZE PAGE_OFFSET | 863 | #define TASK_SIZE PAGE_OFFSET |
| 864 | #define TASK_SIZE_MAX TASK_SIZE | ||
| 864 | #define STACK_TOP TASK_SIZE | 865 | #define STACK_TOP TASK_SIZE |
| 865 | #define STACK_TOP_MAX STACK_TOP | 866 | #define STACK_TOP_MAX STACK_TOP |
| 866 | 867 | ||
| @@ -920,7 +921,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); | |||
| 920 | /* | 921 | /* |
| 921 | * User space process size. 47bits minus one guard page. | 922 | * User space process size. 47bits minus one guard page. |
| 922 | */ | 923 | */ |
| 923 | #define TASK_SIZE64 ((1UL << 47) - PAGE_SIZE) | 924 | #define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE) |
| 924 | 925 | ||
| 925 | /* This decides where the kernel will search for a free chunk of vm | 926 | /* This decides where the kernel will search for a free chunk of vm |
| 926 | * space during mmap's. | 927 | * space during mmap's. |
| @@ -929,12 +930,12 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); | |||
| 929 | 0xc0000000 : 0xFFFFe000) | 930 | 0xc0000000 : 0xFFFFe000) |
| 930 | 931 | ||
| 931 | #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ | 932 | #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ |
| 932 | IA32_PAGE_OFFSET : TASK_SIZE64) | 933 | IA32_PAGE_OFFSET : TASK_SIZE_MAX) |
| 933 | #define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? \ | 934 | #define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? \ |
| 934 | IA32_PAGE_OFFSET : TASK_SIZE64) | 935 | IA32_PAGE_OFFSET : TASK_SIZE_MAX) |
| 935 | 936 | ||
| 936 | #define STACK_TOP TASK_SIZE | 937 | #define STACK_TOP TASK_SIZE |
| 937 | #define STACK_TOP_MAX TASK_SIZE64 | 938 | #define STACK_TOP_MAX TASK_SIZE_MAX |
| 938 | 939 | ||
| 939 | #define INIT_THREAD { \ | 940 | #define INIT_THREAD { \ |
| 940 | .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ | 941 | .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ |
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c index d2f7cd5b2c83..fb2159a5c817 100644 --- a/arch/x86/kernel/ptrace.c +++ b/arch/x86/kernel/ptrace.c | |||
| @@ -268,7 +268,7 @@ static unsigned long debugreg_addr_limit(struct task_struct *task) | |||
| 268 | if (test_tsk_thread_flag(task, TIF_IA32)) | 268 | if (test_tsk_thread_flag(task, TIF_IA32)) |
| 269 | return IA32_PAGE_OFFSET - 3; | 269 | return IA32_PAGE_OFFSET - 3; |
| 270 | #endif | 270 | #endif |
| 271 | return TASK_SIZE64 - 7; | 271 | return TASK_SIZE_MAX - 7; |
| 272 | } | 272 | } |
| 273 | 273 | ||
| 274 | #endif /* CONFIG_X86_32 */ | 274 | #endif /* CONFIG_X86_32 */ |
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 9c2dc5d79531..6fa9f175cba3 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c | |||
| @@ -963,7 +963,7 @@ static int fault_in_kernel_space(unsigned long address) | |||
| 963 | #ifdef CONFIG_X86_32 | 963 | #ifdef CONFIG_X86_32 |
| 964 | return address >= TASK_SIZE; | 964 | return address >= TASK_SIZE; |
| 965 | #else | 965 | #else |
| 966 | return address >= TASK_SIZE64; | 966 | return address >= TASK_SIZE_MAX; |
| 967 | #endif | 967 | #endif |
| 968 | } | 968 | } |
| 969 | 969 | ||
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c index 9c98cc6ba978..7133cdf9098b 100644 --- a/arch/x86/vdso/vma.c +++ b/arch/x86/vdso/vma.c | |||
| @@ -85,8 +85,8 @@ static unsigned long vdso_addr(unsigned long start, unsigned len) | |||
| 85 | unsigned long addr, end; | 85 | unsigned long addr, end; |
| 86 | unsigned offset; | 86 | unsigned offset; |
| 87 | end = (start + PMD_SIZE - 1) & PMD_MASK; | 87 | end = (start + PMD_SIZE - 1) & PMD_MASK; |
| 88 | if (end >= TASK_SIZE64) | 88 | if (end >= TASK_SIZE_MAX) |
| 89 | end = TASK_SIZE64; | 89 | end = TASK_SIZE_MAX; |
| 90 | end -= len; | 90 | end -= len; |
| 91 | /* This loses some more bits than a modulo, but is cheaper */ | 91 | /* This loses some more bits than a modulo, but is cheaper */ |
| 92 | offset = get_random_int() & (PTRS_PER_PTE - 1); | 92 | offset = get_random_int() & (PTRS_PER_PTE - 1); |
