x86, mm: rename TASK_SIZE64 => TASK_SIZE_MAX

Impact: cleanup

Rename TASK_SIZE64 to TASK_SIZE_MAX, and provide the
define on 32-bit too. (mapped to TASK_SIZE)

This allows 32-bit code to make use of the (former-) TASK_SIZE64
symbol as well, in a clean way.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 5 insertions, 4 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)
  * User space process size: 3GB (default).
  */
 #define TASK_SIZE               PAGE_OFFSET
+#define TASK_SIZE_MAX           TASK_SIZE
 #define STACK_TOP               TASK_SIZE
 #define STACK_TOP_MAX           STACK_TOP
 
@@ -920,7 +921,7 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
 /*
  * User space process size. 47bits minus one guard page.
  */
-#define TASK_SIZE64     ((1UL << 47) - PAGE_SIZE)
+#define TASK_SIZE_MAX   ((1UL << 47) - PAGE_SIZE)
 
 /* This decides where the kernel will search for a free chunk of vm
  * space during mmap's.
@@ -929,12 +930,12 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk);
                                         0xc0000000 : 0xFFFFe000)
 
 #define TASK_SIZE               (test_thread_flag(TIF_IA32) ? \
-                                        IA32_PAGE_OFFSET : TASK_SIZE64)
+                                        IA32_PAGE_OFFSET : TASK_SIZE_MAX)
 #define TASK_SIZE_OF(child)     ((test_tsk_thread_flag(child, TIF_IA32)) ? \
-                                        IA32_PAGE_OFFSET : TASK_SIZE64)
+                                        IA32_PAGE_OFFSET : TASK_SIZE_MAX)
 
 #define STACK_TOP               TASK_SIZE
-#define STACK_TOP_MAX           TASK_SIZE64
+#define STACK_TOP_MAX           TASK_SIZE_MAX
 
 #define INIT_THREAD  { \
         .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \