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-rw-r--r--kernel/time/hrtimer.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 76d4bd962b19..93ef7190bdea 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -266,21 +266,23 @@ lock_hrtimer_base(const struct hrtimer *timer, unsigned long *flags)
266/* 266/*
267 * Divide a ktime value by a nanosecond value 267 * Divide a ktime value by a nanosecond value
268 */ 268 */
269u64 __ktime_divns(const ktime_t kt, s64 div) 269s64 __ktime_divns(const ktime_t kt, s64 div)
270{ 270{
271 u64 dclc;
272 int sft = 0; 271 int sft = 0;
272 s64 dclc;
273 u64 tmp;
273 274
274 dclc = ktime_to_ns(kt); 275 dclc = ktime_to_ns(kt);
276 tmp = dclc < 0 ? -dclc : dclc;
277
275 /* Make sure the divisor is less than 2^32: */ 278 /* Make sure the divisor is less than 2^32: */
276 while (div >> 32) { 279 while (div >> 32) {
277 sft++; 280 sft++;
278 div >>= 1; 281 div >>= 1;
279 } 282 }
280 dclc >>= sft; 283 tmp >>= sft;
281 do_div(dclc, (unsigned long) div); 284 do_div(tmp, (unsigned long) div);
282 285 return dclc < 0 ? -tmp : tmp;
283 return dclc;
284} 286}
285EXPORT_SYMBOL_GPL(__ktime_divns); 287EXPORT_SYMBOL_GPL(__ktime_divns);
286#endif /* BITS_PER_LONG >= 64 */ 288#endif /* BITS_PER_LONG >= 64 */