diff options
| author | John Stultz <john.stultz@linaro.org> | 2013-03-22 23:04:13 +0100 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2013-04-04 22:18:15 +0200 |
| commit | cef90377fab488bd1f959efda178fb83250cf61d (patch) | |
| tree | 7ac4afc365ef3d35b339ac796d7ec921df618a58 /kernel/time/timekeeping.c | |
| parent | ntp: Rework do_adjtimex to take timespec and tai arguments (diff) | |
| download | linux-cef90377fab488bd1f959efda178fb83250cf61d.tar.xz linux-cef90377fab488bd1f959efda178fb83250cf61d.zip | |
timekeeping: Move ADJ_SETOFFSET to top level do_adjtimex()
Since ADJ_SETOFFSET adjusts the timekeeping state, process
it as part of the top level do_adjtimex() function in
timekeeping.c.
This avoids deadlocks that could occur once we change the
ntp locking rules.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to '')
| -rw-r--r-- | kernel/time/timekeeping.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 5f7a2330dc3c..e44915c7b16c 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1627,6 +1627,17 @@ int do_adjtimex(struct timex *txc) if (ret) return ret; + if (txc->modes & ADJ_SETOFFSET) { + struct timespec delta; + delta.tv_sec = txc->time.tv_sec; + delta.tv_nsec = txc->time.tv_usec; + if (!(txc->modes & ADJ_NANO)) + delta.tv_nsec *= 1000; + ret = timekeeping_inject_offset(&delta); + if (ret) + return ret; + } + getnstimeofday(&ts); orig_tai = tai = timekeeping_get_tai_offset(); |