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| author | Torben Hohn <torbenh@gmx.de> | 2011-01-27 15:59:10 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-01-31 14:55:43 +0100 |
| commit | f0af911a9dec9de702645182c8d269449e24d24b (patch) | |
| tree | 17cd5683ab3878479b59d9786102fcf699d3051a /kernel/time | |
| parent | 79ecaf0d15344d78904becf0f25de3fc9b49d430 (diff) | |
| download | linux-f0af911a9dec9de702645182c8d269449e24d24b.tar.gz linux-f0af911a9dec9de702645182c8d269449e24d24b.tar.bz2 linux-f0af911a9dec9de702645182c8d269449e24d24b.zip | |
time: Provide xtime_update()
xtime_update() takes xtime_lock write locked and calls
do_timer(). Provided to replace the do_timer() calls in the
architecture code.
Signed-off-by: Torben Hohn <torbenh@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: johnstul@us.ibm.com
Cc: yong.zhang0@gmail.com
Cc: hch@infradead.org
LKML-Reference: <20110127145910.23248.21379.stgit@localhost>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/timekeeping.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 8da35d1b9e16..02c13a313d15 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -969,3 +969,16 @@ void get_xtime_and_monotonic_offset(struct timespec *xtim, struct timespec *wtom *wtom = wall_to_monotonic; } while (read_seqretry(&xtime_lock, seq)); } + +/** + * xtime_update() - advances the timekeeping infrastructure + * @ticks: number of ticks, that have elapsed since the last call. + * + * Must be called with interrupts disabled. + */ +void xtime_update(unsigned long ticks) +{ + write_seqlock(&xtime_lock); + do_timer(ticks); + write_sequnlock(&xtime_lock); +} |