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| author |   David S. Miller <davem@davemloft.net> | 2008-03-26 17:32:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-26 17:32:33 -0700 |
| commit | c101b088ba0ed16d7109b2f3c2d16798d162a535 (patch) | |
| tree | 25eaea3719800dc039e5f31da937fb26b590037e /include/asm-sparc64 | |
| parent | [SPARC64]: flush_ptrace_access() needs preemption disable. (diff) | |
| download | linux-dev-c101b088ba0ed16d7109b2f3c2d16798d162a535.tar.xz linux-dev-c101b088ba0ed16d7109b2f3c2d16798d162a535.zip | |
[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>
Diffstat (limited to 'include/asm-sparc64')
| -rw-r--r-- | include/asm-sparc64/processor.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-sparc64/processor.h b/include/asm-sparc64/processor.h index 8da484c19822..885b6a1dcae4 100644 --- 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) |