Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=19ef9309273d26cb005cb23e6a370353dca91099
Commit:     19ef9309273d26cb005cb23e6a370353dca91099
Parent:     90739081ef8d5495d50abba9c5d333be9acd872a
Author:     Ingo Molnar <[EMAIL PROTECTED]>
AuthorDate: Fri Jan 25 21:08:34 2008 +0100
Committer:  Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 21:08:34 2008 +0100

    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 <[EMAIL PROTECTED]>
---
 kernel/printk.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

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 @@ asmlinkage int vprintk(const char *fmt, va_list args)
                                        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] ",
-
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