[IA64] Add TIF_RESTORE_SIGMASK

Preparation for pselect and ppoll.
ia32 compat code not tested. :-(

Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 0 insertions, 26 deletions

diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 55fd2d5471e1..156a6fa031f4 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1199,32 +1199,6 @@ ENTRY(notify_resume_user)
         br.ret.sptk.many rp
 END(notify_resume_user)
 
-GLOBAL_ENTRY(sys_rt_sigsuspend)
-        .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
-        alloc loc1=ar.pfs,8,2,3,0 // preserve all eight input regs in case of syscall restart!
-        mov r9=ar.unat
-        mov loc0=rp                             // save return address
-        mov out0=in0                            // mask
-        mov out1=in1                            // sigsetsize
-        adds out2=8,sp                          // out2=&sigscratch->ar_pfs
-        ;;
-        .fframe 16
-        .spillsp ar.unat, 16
-        st8 [sp]=r9,-16                         // allocate space for ar.unat and save it
-        st8 [out2]=loc1,-8                      // save ar.pfs, out2=&sigscratch
-        .body
-        br.call.sptk.many rp=ia64_rt_sigsuspend
-.ret17: .restore sp
-        adds sp=16,sp                           // pop scratch stack space
-        ;;
-        ld8 r9=[sp]                             // load new unat from sw->caller_unat
-        mov rp=loc0
-        ;;
-        mov ar.unat=r9
-        mov ar.pfs=loc1
-        br.ret.sptk.many rp
-END(sys_rt_sigsuspend)
-
 ENTRY(sys_rt_sigreturn)
         PT_REGS_UNWIND_INFO(0)
         /*