]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[S390] tod clock: announce clocksource as perfect
authorChristian Borntraeger <borntraeger@de.ibm.com>
Mon, 5 Nov 2007 10:10:14 +0000 (11:10 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 5 Nov 2007 10:10:18 +0000 (11:10 +0100)
commitd2cb0e6ecbe0ef93ab36631cd17ec6cf92b69c5a
tree029b4ace47d18e0f8ac1e29db7961d9a28804e03
parent69d39d6669a01e26ae6dbf5c3e84e0d1b6ccf332
[S390] tod clock: announce clocksource as perfect

The Time of Day clock is the standard time source for s390. It is
- monotonic
- allows very fast reading
- architecture guarantees at least microsecond stepping
- available as part of the architecture

We should announce the rate of tod as 400 to be in sync with the
description found in clocksource.h:
"400-499:Perfect The ideal clocksource. A must-use where available."

This change will prefer tod over less reliable clock sources.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/kernel/time.c