[PATCH] Add printk_clock()
authorAndrew Morton <akpm@osdl.org>
Wed, 21 Sep 2005 16:55:30 +0000 (09:55 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Wed, 21 Sep 2005 17:11:54 +0000 (10:11 -0700)
commit31f6d9d628739c097964b8dbae939ea997da94a3
treea559531440fbf6685e68ebce5f5a26695ae7d5d9
parent66dcca062847bcd261ebb3ac96d51101f31a8630
[PATCH] Add printk_clock()

ia64's sched_clock() accesses per-cpu data which isn't set up at boot time.
Hence ia64 cannot use printk timestamping, because printk() will crash in
sched_clock().

So make printk() use printk_clock(), defaulting to sched_clock(), overrideable
by the architecture via attribute(weak).

Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/printk.c