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[SPARC64]: Define TASK_SIZE_OF()
author
David S. Miller
<davem@davemloft.net>
Thu, 27 Mar 2008 00:32:33 +0000
(17:32 -0700)
committer
David S. Miller
<davem@davemloft.net>
Thu, 27 Mar 2008 00:32:33 +0000
(17:32 -0700)
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>
include/asm-sparc64/processor.h
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diff --git
a/include/asm-sparc64/processor.h
b/include/asm-sparc64/processor.h
index
8da484c
..
885b6a1
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)
+#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)