Commit-ID: cef90377fab488bd1f959efda178fb83250cf61d
Gitweb: http://git.kernel.org/tip/cef90377fab488bd1f959efda178fb83250cf61d
Author: John Stultz <john.stultz@xxxxxxxxxx>
AuthorDate: Fri, 22 Mar 2013 15:04:13 -0700
Committer: John Stultz <john.stultz@xxxxxxxxxx>
CommitDate: Thu, 4 Apr 2013 13:18:15 -0700
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@xxxxxxxxxxxxx>
Cc: Richard Cochran <richardcochran@xxxxxxxxx>
Cc: Prarit Bhargava <prarit@xxxxxxxxxx>
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
kernel/time/ntp.c | 11 -----------
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 d17e13c..a331ebc 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 5f7a233..e44915c 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();
--
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