[SPARC64]: Define TASK_SIZE_OF()

This make "cat /proc/${PID}/pagemap" more efficient for
32-bit tasks.

Based upon a report by Mariusz Kozlowski.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/asm-sparc64/processor.h b/include/asm-sparc64/processor.h
index 8da484c19822cc1d08d59d4fc635e06329ef2675..885b6a1dcae4d0b75df49cdc82df8e2035aa45a0 100644 (file)
--- a/include/asm-sparc64/processor.h
+++ b/include/asm-sparc64/processor.h
@@ -37,6 +37,9 @@
 #endif
 
 #define TASK_SIZE      ((unsigned long)-VPTE_SIZE)
 #endif
 
 #define TASK_SIZE      ((unsigned long)-VPTE_SIZE)

+#define TASK_SIZE_OF(tsk) \
+       (test_tsk_thread_flag(tsk,TIF_32BIT) ? \
+        (1UL << 32UL) : TASK_SIZE)

 #ifdef __KERNEL__
 
 #define STACK_TOP32    ((1UL << 32UL) - PAGE_SIZE)
 #ifdef __KERNEL__
 
 #define STACK_TOP32    ((1UL << 32UL) - PAGE_SIZE)