diff options
| author | Stanislaw Gruszka <stf_xl@wp.pl> | 2010-05-25 23:49:12 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-05-26 16:15:37 +0200 |
| commit | 174bd1994ec67a6e6191c4ed8e5dac17fa221b84 (patch) | |
| tree | 1f1d80d40787dddff4a0b8bc63e70ad2c2981c5c /kernel | |
| parent | 2abfb9e1d470f7082e5e20e4b11a271a0124211b (diff) | |
| download | lwn-174bd1994ec67a6e6191c4ed8e5dac17fa221b84.tar.gz lwn-174bd1994ec67a6e6191c4ed8e5dac17fa221b84.zip | |
hrtimer: Avoid double seqlock
hrtimer_get_softirq_time() has it's own xtime lock protection, so it's
safe to use plain __current_kernel_time() and avoid the double seqlock
loop.
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
LKML-Reference: <20100525214912.GA1934@r2bh72.net.upc.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/hrtimer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index b9b134b35088..5c69e996bd0f 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -89,7 +89,7 @@ static void hrtimer_get_softirq_time(struct hrtimer_cpu_base *base) do { seq = read_seqbegin(&xtime_lock); - xts = current_kernel_time(); + xts = __current_kernel_time(); tom = wall_to_monotonic; } while (read_seqretry(&xtime_lock, seq)); |