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authorIngo Molnar <mingo@elte.hu>2012-03-05 09:20:08 +0100
committerIngo Molnar <mingo@elte.hu>2012-03-05 09:20:08 +0100
commit737f24bda723fdf89ecaacb99fa2bf5683c32799 (patch)
tree35495fff3e9956679cb5468e74e6814c8e44ee66 /arch/s390
parent8eedce996556d7d06522cd3a0e6069141c8dffe0 (diff)
parentb7c924274c456499264d1cfa3d44063bb11eb5db (diff)
Merge branch 'perf/urgent' into perf/core
Conflicts: tools/perf/builtin-record.c tools/perf/builtin-top.c tools/perf/perf.h tools/perf/util/top.h Merge reason: resolve these cherry-picking conflicts. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/compat.h7
-rw-r--r--arch/s390/kernel/compat_wrapper.S2
-rw-r--r--arch/s390/kernel/process.c6
-rw-r--r--arch/s390/kernel/ptrace.c2
-rw-r--r--arch/s390/kernel/setup.c2
-rw-r--r--arch/s390/kernel/signal.c1
-rw-r--r--arch/s390/kernel/time.c7
-rw-r--r--arch/s390/mm/fault.c1
-rw-r--r--arch/s390/mm/mmap.c2
-rw-r--r--arch/s390/mm/pgtable.c2
10 files changed, 13 insertions, 19 deletions
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 2e49748b27da..234f1d859cea 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -172,13 +172,6 @@ static inline int is_compat_task(void)
return is_32bit_task();
}
-#else
-
-static inline int is_compat_task(void)
-{
- return 0;
-}
-
#endif
static inline void __user *arch_compat_alloc_user_space(long len)
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 18c51df9fe06..ff605a39cf43 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -662,7 +662,7 @@ ENTRY(sys32_getresuid16_wrapper)
ENTRY(sys32_poll_wrapper)
llgtr %r2,%r2 # struct pollfd *
llgfr %r3,%r3 # unsigned int
- lgfr %r4,%r4 # long
+ lgfr %r4,%r4 # int
jg sys_poll # branch to system call
ENTRY(sys32_setresgid16_wrapper)
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 3201ae447990..e795933eb2cb 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -29,7 +29,6 @@
#include <asm/irq.h>
#include <asm/timer.h>
#include <asm/nmi.h>
-#include <asm/compat.h>
#include <asm/smp.h>
#include "entry.h"
@@ -76,7 +75,6 @@ static void default_idle(void)
if (test_thread_flag(TIF_MCCK_PENDING)) {
local_mcck_enable();
local_irq_enable();
- s390_handle_mcck();
return;
}
trace_hardirqs_on();
@@ -93,10 +91,12 @@ void cpu_idle(void)
for (;;) {
tick_nohz_idle_enter();
rcu_idle_enter();
- while (!need_resched())
+ while (!need_resched() && !test_thread_flag(TIF_MCCK_PENDING))
default_idle();
rcu_idle_exit();
tick_nohz_idle_exit();
+ if (test_thread_flag(TIF_MCCK_PENDING))
+ s390_handle_mcck();
preempt_enable_no_resched();
schedule();
preempt_disable();
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 9d82ed4bcb27..61f95489d70c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -20,8 +20,8 @@
#include <linux/regset.h>
#include <linux/tracehook.h>
#include <linux/seccomp.h>
+#include <linux/compat.h>
#include <trace/syscall.h>
-#include <asm/compat.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/pgtable.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 354de0763eff..3b2efc81f34e 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -46,6 +46,7 @@
#include <linux/kexec.h>
#include <linux/crash_dump.h>
#include <linux/memory.h>
+#include <linux/compat.h>
#include <asm/ipl.h>
#include <asm/uaccess.h>
@@ -59,7 +60,6 @@
#include <asm/ptrace.h>
#include <asm/sections.h>
#include <asm/ebcdic.h>
-#include <asm/compat.h>
#include <asm/kvm_virtio.h>
#include <asm/diag.h>
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index a8ba840294ff..2d421d90fada 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -30,7 +30,6 @@
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/lowcore.h>
-#include <asm/compat.h>
#include "entry.h"
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index fa02f443f5f6..14da278febbf 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -113,11 +113,14 @@ static void fixup_clock_comparator(unsigned long long delta)
static int s390_next_ktime(ktime_t expires,
struct clock_event_device *evt)
{
+ struct timespec ts;
u64 nsecs;
- nsecs = ktime_to_ns(ktime_sub(expires, ktime_get_monotonic_offset()));
+ ts.tv_sec = ts.tv_nsec = 0;
+ monotonic_to_bootbased(&ts);
+ nsecs = ktime_to_ns(ktime_add(timespec_to_ktime(ts), expires));
do_div(nsecs, 125);
- S390_lowcore.clock_comparator = TOD_UNIX_EPOCH + (nsecs << 9);
+ S390_lowcore.clock_comparator = sched_clock_base_cc + (nsecs << 9);
set_clock_comparator(S390_lowcore.clock_comparator);
return 0;
}
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 354dd39073ef..e8fcd928dc78 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -36,7 +36,6 @@
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
-#include <asm/compat.h>
#include "../kernel/entry.h"
#ifndef CONFIG_64BIT
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index f09c74881b7e..a0155c02e324 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -29,8 +29,8 @@
#include <linux/mman.h>
#include <linux/module.h>
#include <linux/random.h>
+#include <linux/compat.h>
#include <asm/pgalloc.h>
-#include <asm/compat.h>
static unsigned long stack_maxrandom_size(void)
{
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 9a4d02f64f16..51b0738e13d1 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -574,7 +574,7 @@ static inline void page_table_free_pgste(unsigned long *table)
page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
mp = (struct gmap_pgtable *) page->index;
BUG_ON(!list_empty(&mp->mapper));
- pgtable_page_ctor(page);
+ pgtable_page_dtor(page);
atomic_set(&page->_mapcount, -1);
kfree(mp);
__free_page(page);