Messages in this thread Patch in this message |  | | Date | Wed, 9 Jan 2013 10:47:36 +1100 | From | Anton Blanchard <> | Subject | [PATCH 2/4] powerpc: Remove static branch prediction in 64bit traced syscall path |
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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> ---
Index: b/arch/powerpc/kernel/entry_64.S =================================================================== --- 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_SPLP CURRENT_THREAD_INFO(r11, r1) ld r10,TI_FLAGS(r11) andi. r11,r10,_TIF_SYSCALL_T_OR_A - bne- syscall_dotrace + bne syscall_dotrace .Lsyscall_dotrace_cont: cmpldi 0,r0,NR_syscalls bge- syscall_enosys
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