diff options
| author | Anton Blanchard <anton@samba.org> | 2013-01-08 18:47:36 -0500 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2013-04-10 12:49:20 -0400 |
| commit | 2540334adc1c7241a7f91a9cf7ec56776d3f601b (patch) | |
| tree | 408310bd8a9e980a169b0644ffbe220b29faf39e /arch/powerpc | |
| parent | cdee3904b4ce7c03d1013ed6dd704b43ae7fc2e9 (diff) | |
powerpc: Remove static branch prediction in 64bit traced syscall path
Some distros enable auditing by default which forces us through the
syscall trace path. Remove the static branch prediction in our 64bit
syscall handler and let the hardware do the prediction.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 3d990d3bd8ba..c20d9bf4aa26 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S | |||
| @@ -149,7 +149,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) | |||
| 149 | CURRENT_THREAD_INFO(r11, r1) | 149 | CURRENT_THREAD_INFO(r11, r1) |
| 150 | ld r10,TI_FLAGS(r11) | 150 | ld r10,TI_FLAGS(r11) |
| 151 | andi. r11,r10,_TIF_SYSCALL_T_OR_A | 151 | andi. r11,r10,_TIF_SYSCALL_T_OR_A |
| 152 | bne- syscall_dotrace | 152 | bne syscall_dotrace |
| 153 | .Lsyscall_dotrace_cont: | 153 | .Lsyscall_dotrace_cont: |
| 154 | cmpldi 0,r0,NR_syscalls | 154 | cmpldi 0,r0,NR_syscalls |
| 155 | bge- syscall_enosys | 155 | bge- syscall_enosys |