diff options
Diffstat (limited to 'arch/sparc/kernel/syscalls.S')
| -rw-r--r-- | arch/sparc/kernel/syscalls.S | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index dc4a458f74dc..1d7e274f3f2b 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -110,31 +110,12 @@ sys_clone: .globl ret_from_syscall ret_from_syscall: - /* Clear current_thread_info()->new_child, and - * check performance counter stuff too. - */ + /* Clear current_thread_info()->new_child. */ stb %g0, [%g6 + TI_NEW_CHILD] ldx [%g6 + TI_FLAGS], %l0 call schedule_tail mov %g7, %o0 - andcc %l0, _TIF_PERFCTR, %g0 - be,pt %icc, 1f - nop - ldx [%g6 + TI_PCR], %o7 - wr %g0, %o7, %pcr - - /* Blackbird errata workaround. See commentary in - * smp.c:smp_percpu_timer_interrupt() for more - * information. - */ - ba,pt %xcc, 99f - nop - - .align 64 -99: wr %g0, %g0, %pic - rd %pic, %g0 - -1: ba,pt %xcc, ret_sys_call + ba,pt %xcc, ret_sys_call ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 .globl sparc_exit |