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Commit 174bd199 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by Thomas Gleixner
Browse files

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: default avatarStanislaw Gruszka <stf_xl@wp.pl>
LKML-Reference: <20100525214912.GA1934@r2bh72.net.upc.cz>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 2abfb9e1

kernel/hrtimer.c

+1 −1
Original line number Diff line number Diff line
@@ -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));