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Subject[PATCH 14/24] s390: Remove signal translation and exec_domain
Date
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>
---
arch/s390/include/asm/thread_info.h | 2 --
arch/s390/kernel/asm-offsets.c | 1 -
arch/s390/kernel/compat_signal.c | 14 ++------------
arch/s390/kernel/signal.c | 14 ++------------
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 ef1df71..0a6dcff 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 e07e916..e52a202 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 bc1df12..fe8d692 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 b3ae6f7..c3f71c4 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;
--
1.8.4.5


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