printk: use ktime_get()
printk timestamps: use ktime_get().
Some platforms have a functioning clocksource function only after
they are done with early bootup, so delay this until out of
SYSTEM_BOOTING state.
it's also inherently safe now, as any bugs in this area will be
caught by the printk recursion checks.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/printk.c b/kernel/printk.c
index 3b7c968..423a8c7 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -702,7 +702,9 @@
loglev_char = default_message_loglevel
+ '0';
}
- t = cpu_clock(printk_cpu);
+ t = 0;
+ if (system_state != SYSTEM_BOOTING)
+ t = ktime_to_ns(ktime_get());
nanosec_rem = do_div(t, 1000000000);
tlen = sprintf(tbuf,
"<%c>[%5lu.%06lu] ",