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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-03 21:50:05 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-03 21:50:05 +0300
commit0f64df30124018de92c7f22a044b975da8dd52cc (patch)
tree752226295c4683a7a32209a9a9f84a9955752863
parentc8b4ec8351d21da3299b045b37920e5cf5590793 (diff)
parentb4a9eb4cd5966c8aad3d007d206a2cbda97d6928 (diff)
downloadlinux-0f64df30124018de92c7f22a044b975da8dd52cc.tar.xz
Merge branch 'parisc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller: - limit usage of processor-internal cr16 clocksource to UP systems only - segfault info lines in syslog were too long, split those up - drop own TIF_RESTORE_SIGMASK flag and switch to generic code * 'parisc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Add line-break when printing segfault info parisc: Drop TIF_RESTORE_SIGMASK and switch to generic code parisc: Mark cr16 clocksource unstable on SMP systems
-rw-r--r--arch/parisc/include/asm/thread_info.h1
-rw-r--r--arch/parisc/kernel/time.c23
-rw-r--r--arch/parisc/mm/fault.c2
3 files changed, 21 insertions, 5 deletions
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 7581330ea35b..88fe0aad4390 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -49,7 +49,6 @@ struct thread_info {
#define TIF_POLLING_NRFLAG 3 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_32BIT 4 /* 32 bit binary */
#define TIF_MEMDIE 5 /* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK 6 /* restore saved signal mask */
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
#define TIF_NOTIFY_RESUME 8 /* callback before returning to user */
#define TIF_SINGLESTEP 9 /* single stepping? */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index da0d9cb63403..1e22f981cd81 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -235,9 +235,26 @@ void __init time_init(void)
cr16_hz = 100 * PAGE0->mem_10msec; /* Hz */
- /* register at clocksource framework */
- clocksource_register_hz(&clocksource_cr16, cr16_hz);
-
/* register as sched_clock source */
sched_clock_register(read_cr16_sched_clock, BITS_PER_LONG, cr16_hz);
}
+
+static int __init init_cr16_clocksource(void)
+{
+ /*
+ * The cr16 interval timers are not syncronized across CPUs, so mark
+ * them unstable and lower rating on SMP systems.
+ */
+ if (num_online_cpus() > 1) {
+ clocksource_cr16.flags = CLOCK_SOURCE_UNSTABLE;
+ clocksource_cr16.rating = 0;
+ }
+
+ /* register at clocksource framework */
+ clocksource_register_hz(&clocksource_cr16,
+ 100 * PAGE0->mem_10msec);
+
+ return 0;
+}
+
+device_initcall(init_cr16_clocksource);
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 8ff9253930af..1a0b4f63f0e9 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -234,7 +234,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long code,
tsk->comm, code, address);
print_vma_addr(KERN_CONT " in ", regs->iaoq[0]);
- pr_cont(" trap #%lu: %s%c", code, trap_name(code),
+ pr_cont("\ntrap #%lu: %s%c", code, trap_name(code),
vma ? ',':'\n');
if (vma)