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-rw-r--r--arch/ppc/kernel/setup.c4
-rw-r--r--arch/ppc/kernel/time.c13
-rw-r--r--arch/ppc/kernel/traps.c2
-rw-r--r--arch/ppc/mm/fault.c4
4 files changed, 7 insertions, 16 deletions
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 5458ac5da7c..75fe13815be 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -86,10 +86,6 @@ int ppc_do_canonicalize_irqs;
EXPORT_SYMBOL(ppc_do_canonicalize_irqs);
#endif
-#ifdef CONFIG_MAGIC_SYSRQ
-unsigned long SYSRQ_KEY = 0x54;
-#endif /* CONFIG_MAGIC_SYSRQ */
-
#ifdef CONFIG_VGA_CONSOLE
unsigned long vgacon_remap_base;
#endif
diff --git a/arch/ppc/kernel/time.c b/arch/ppc/kernel/time.c
index 6ab8cc7226a..187388625a7 100644
--- a/arch/ppc/kernel/time.c
+++ b/arch/ppc/kernel/time.c
@@ -80,8 +80,6 @@ unsigned tb_to_us;
unsigned tb_last_stamp;
unsigned long tb_to_ns_scale;
-extern unsigned long wall_jiffies;
-
/* used for timezone offset */
static long timezone_offset;
@@ -153,7 +151,7 @@ void timer_interrupt(struct pt_regs * regs)
/* We are in an interrupt, no need to save/restore flags */
write_seqlock(&xtime_lock);
tb_last_stamp = jiffy_stamp;
- do_timer(regs);
+ do_timer(1);
/*
* update the rtc when needed, this should be performed on the
@@ -173,8 +171,7 @@ void timer_interrupt(struct pt_regs * regs)
*/
if ( ppc_md.set_rtc_time && ntp_synced() &&
xtime.tv_sec - last_rtc_update >= 659 &&
- abs((xtime.tv_nsec / 1000) - (1000000-1000000/HZ)) < 500000/HZ &&
- jiffies - wall_jiffies == 1) {
+ abs((xtime.tv_nsec / 1000) - (1000000-1000000/HZ)) < 500000/HZ) {
if (ppc_md.set_rtc_time(xtime.tv_sec+1 + timezone_offset) == 0)
last_rtc_update = xtime.tv_sec+1;
else
@@ -200,7 +197,7 @@ void do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
unsigned long seq;
- unsigned delta, lost_ticks, usec, sec;
+ unsigned delta, usec, sec;
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
@@ -214,10 +211,9 @@ void do_gettimeofday(struct timeval *tv)
if (!smp_tb_synchronized)
delta = 0;
#endif /* CONFIG_SMP */
- lost_ticks = jiffies - wall_jiffies;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
- usec += mulhwu(tb_to_us, tb_ticks_per_jiffy * lost_ticks + delta);
+ usec += mulhwu(tb_to_us, delta);
while (usec >= 1000000) {
sec++;
usec -= 1000000;
@@ -258,7 +254,6 @@ int do_settimeofday(struct timespec *tv)
* still reasonable when gettimeofday resolution is 1 jiffy.
*/
tb_delta = tb_ticks_since(last_jiffy_stamp(smp_processor_id()));
- tb_delta += (jiffies - wall_jiffies) * tb_ticks_per_jiffy;
new_nsec -= 1000 * mulhwu(tb_to_us, tb_delta);
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index d7a433049b4..aafc8e8893d 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -119,7 +119,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
* generate the same exception over and over again and we get
* nowhere. Better to kill it and let the kernel panic.
*/
- if (current->pid == 1) {
+ if (is_init(current)) {
__sighandler_t handler;
spin_lock_irq(&current->sighand->siglock);
diff --git a/arch/ppc/mm/fault.c b/arch/ppc/mm/fault.c
index 5cdfb71fcb0..465f451f3bc 100644
--- a/arch/ppc/mm/fault.c
+++ b/arch/ppc/mm/fault.c
@@ -239,7 +239,7 @@ good_area:
/* protection fault */
if (error_code & 0x08000000)
goto bad_area;
- if (!(vma->vm_flags & (VM_READ | VM_EXEC)))
+ if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
goto bad_area;
}
@@ -291,7 +291,7 @@ bad_area:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- if (current->pid == 1) {
+ if (is_init(current)) {
yield();
down_read(&mm->mmap_sem);
goto survive;