diff options
| -rw-r--r-- | include/linux/acct.h | 4 | ||||
| -rw-r--r-- | kernel/time.c | 11 |
2 files changed, 13 insertions, 2 deletions
diff --git a/include/linux/acct.h b/include/linux/acct.h index 302eb727ecb..e8cae54e8d8 100644 --- a/include/linux/acct.h +++ b/include/linux/acct.h @@ -173,7 +173,11 @@ typedef struct acct acct_t; static inline u32 jiffies_to_AHZ(unsigned long x) { #if (TICK_NSEC % (NSEC_PER_SEC / AHZ)) == 0 +# if HZ < AHZ + return x * (AHZ / HZ); +# else return x / (HZ / AHZ); +# endif #else u64 tmp = (u64)x * TICK_NSEC; do_div(tmp, (NSEC_PER_SEC / AHZ)); diff --git a/kernel/time.c b/kernel/time.c index 4064c0566e7..be5c8cb9358 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -566,7 +566,11 @@ EXPORT_SYMBOL(jiffies_to_timeval); clock_t jiffies_to_clock_t(long x) { #if (TICK_NSEC % (NSEC_PER_SEC / USER_HZ)) == 0 +# if HZ < USER_HZ + return x * (USER_HZ / HZ); +# else return x / (HZ / USER_HZ); +# endif #else u64 tmp = (u64)x * TICK_NSEC; do_div(tmp, (NSEC_PER_SEC / USER_HZ)); @@ -599,7 +603,12 @@ EXPORT_SYMBOL(clock_t_to_jiffies); u64 jiffies_64_to_clock_t(u64 x) { #if (TICK_NSEC % (NSEC_PER_SEC / USER_HZ)) == 0 +# if HZ < USER_HZ + x *= USER_HZ; + do_div(x, HZ); +# else do_div(x, HZ / USER_HZ); +# endif #else /* * There are better ways that don't overflow early, @@ -611,7 +620,6 @@ u64 jiffies_64_to_clock_t(u64 x) #endif return x; } - EXPORT_SYMBOL(jiffies_64_to_clock_t); u64 nsec_to_clock_t(u64 x) @@ -646,7 +654,6 @@ u64 get_jiffies_64(void) } while (read_seqretry(&xtime_lock, seq)); return ret; } - EXPORT_SYMBOL(get_jiffies_64); #endif |