s390: Remove signal translation and exec_domain

As execution domain support is gone we can remove
signal translation from the signal code and remove
exec_domain from thread_info.

Signed-off-by: Richard Weinberger <richard@nod.at>

4 files changed, 4 insertions, 27 deletions

diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index ef1df718642d..0a6dcff94cde 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -34,7 +34,6 @@
  */
 struct thread_info {
         struct task_struct      *task;          /* main task structure */
-        struct exec_domain      *exec_domain;   /* execution domain */
         unsigned long           flags;          /* low level flags */
         unsigned long           sys_call_table; /* System call table address */
         unsigned int            cpu;            /* current CPU */
@@ -51,7 +50,6 @@ struct thread_info {
 #define INIT_THREAD_INFO(tsk)                   \
 {                                               \
         .task           = &tsk,                 \
-        .exec_domain    = &default_exec_domain, \
         .flags          = 0,                    \
         .cpu            = 0,                    \
         .preempt_count  = INIT_PREEMPT_COUNT,   \
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index e07e91605353..e52a202b13b5 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -34,7 +34,6 @@ int main(void)
         DEFINE(__THREAD_per_paid, offsetof(struct task_struct, thread.per_event.paid));
         BLANK();
         DEFINE(__TI_task, offsetof(struct thread_info, task));
-        DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain));
         DEFINE(__TI_flags, offsetof(struct thread_info, flags));
         DEFINE(__TI_sysc_table, offsetof(struct thread_info, sys_call_table));
         DEFINE(__TI_cpu, offsetof(struct thread_info, cpu));
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index bc1df12dd4f8..fe8d6924efaa 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -370,16 +370,6 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
         return (void __user *)((sp - frame_size) & -8ul);
 }
 
-static inline int map_signal(int sig)
-{
-        if (current_thread_info()->exec_domain
-            && current_thread_info()->exec_domain->signal_invmap
-            && sig < 32)
-                return current_thread_info()->exec_domain->signal_invmap[sig];
-        else
-                return sig;
-}
-
 static int setup_frame32(struct ksignal *ksig, sigset_t *set,
                          struct pt_regs *regs)
 {
@@ -449,7 +439,7 @@ static int setup_frame32(struct ksignal *ksig, sigset_t *set,
                 (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (__force __u64) ksig->ka.sa.sa_handler;
 
-        regs->gprs[2] = map_signal(sig);
+        regs->gprs[2] = sig;
         regs->gprs[3] = (__force __u64) &frame->sc;
 
         /* We forgot to include these in the sigcontext.
@@ -532,7 +522,7 @@ static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
                 (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (__u64 __force) ksig->ka.sa.sa_handler;
 
-        regs->gprs[2] = map_signal(ksig->sig);
+        regs->gprs[2] = ksig->sig;
         regs->gprs[3] = (__force __u64) &frame->info;
         regs->gprs[4] = (__force __u64) &frame->uc;
         regs->gprs[5] = task_thread_info(current)->last_break;
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index b3ae6f70c6d6..c3f71c4f7b71 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -309,16 +309,6 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
         return (void __user *)((sp - frame_size) & -8ul);
 }
 
-static inline int map_signal(int sig)
-{
-        if (current_thread_info()->exec_domain
-            && current_thread_info()->exec_domain->signal_invmap
-            && sig < 32)
-                return current_thread_info()->exec_domain->signal_invmap[sig];
-        else
-                return sig;
-}
-
 static int setup_frame(int sig, struct k_sigaction *ka,
                        sigset_t *set, struct pt_regs * regs)
 {
@@ -386,7 +376,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
                 (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
-        regs->gprs[2] = map_signal(sig);
+        regs->gprs[2] = sig;
         regs->gprs[3] = (unsigned long) &frame->sc;
 
         /* We forgot to include these in the sigcontext.
@@ -468,7 +458,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
                 (regs->psw.mask & ~PSW_MASK_ASC);
         regs->psw.addr = (unsigned long) ksig->ka.sa.sa_handler | PSW_ADDR_AMODE;
 
-        regs->gprs[2] = map_signal(ksig->sig);
+        regs->gprs[2] = ksig->sig;
         regs->gprs[3] = (unsigned long) &frame->info;
         regs->gprs[4] = (unsigned long) &frame->uc;
         regs->gprs[5] = task_thread_info(current)->last_break;