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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 13:53:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-15 13:53:55 -0700
commitfa2e5c073a355465a2a8c9a2fbecf404f9857c3a (patch)
tree771be75e5436031ad53649634dffa67f6667b083 /arch/s390
parente44740c1a94b5d39b093045920f543a7bc135584 (diff)
parent97b2f0dc331474fb80ba4f4e4aee1d8e9ffbf7ce (diff)
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Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
Pull exec domain removal from Richard Weinberger: "This series removes execution domain support from Linux. The idea behind exec domains was to support different ABIs. The feature was never complete nor stable. Let's rip it out and make the kernel signal handling code less complicated" * 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits) arm64: Removed unused variable sparc: Fix execution domain removal Remove rest of exec domains. arch: Remove exec_domain from remaining archs arc: Remove signal translation and exec_domain xtensa: Remove signal translation and exec_domain xtensa: Autogenerate offsets in struct thread_info x86: Remove signal translation and exec_domain unicore32: Remove signal translation and exec_domain um: Remove signal translation and exec_domain tile: Remove signal translation and exec_domain sparc: Remove signal translation and exec_domain sh: Remove signal translation and exec_domain s390: Remove signal translation and exec_domain mn10300: Remove signal translation and exec_domain microblaze: Remove signal translation and exec_domain m68k: Remove signal translation and exec_domain m32r: Remove signal translation and exec_domain m32r: Autogenerate offsets in struct thread_info frv: Remove signal translation and exec_domain ...
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/thread_info.h2
-rw-r--r--arch/s390/kernel/asm-offsets.c1
-rw-r--r--arch/s390/kernel/compat_signal.c14
-rw-r--r--arch/s390/kernel/signal.c14
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 d532098d98bf..4c27ec764c36 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -29,7 +29,6 @@
*/
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 */
@@ -46,7 +45,6 @@ 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 f35058da8eaf..c7d1b9d09011 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 7fec60cb0b75..c551f22ce066 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -301,16 +301,6 @@ 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)
{
@@ -378,7 +368,7 @@ 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.
@@ -458,7 +448,7 @@ 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;