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 | |
| 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 'kernel/time')
| -rw-r--r-- | kernel/time/ntp.c | 11 | ||||
| -rw-r--r-- | kernel/time/timekeeping.c | 11 |
2 files changed, 11 insertions, 11 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index d17e13c0147d..a331ebc32e21 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -666,17 +666,6 @@ int __do_adjtimex(struct timex *txc, struct timespec *ts, s32 *time_tai) { int result; - 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; - result = timekeeping_inject_offset(&delta); - if (result) - return result; - } - raw_spin_lock_irq(&ntp_lock); if (txc->modes & ADJ_ADJTIME) { 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(); |