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| author | Nicholas Mc Guire <hofrat@osadl.org> | 2015-05-28 19:09:55 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-06-10 11:31:13 +0200 |
| commit | ae60d6a0e3a9197d37f8c8c4584a8ecd18518cd6 (patch) | |
| tree | c92be000e14cb3c626a9d978d66629a9f7afb078 /kernel/time | |
| parent | hrtimers: Make sure hrtimer_resolution is unsigned int (diff) | |
| download | linux-ae60d6a0e3a9197d37f8c8c4584a8ecd18518cd6.tar.xz linux-ae60d6a0e3a9197d37f8c8c4584a8ecd18518cd6.zip | |
time: Refactor usecs_to_jiffies
Refactor the usecs_to_jiffies conditional code part in time.c and
jiffies.h putting it into conditional functions rather than #ifdefs
to improve readability. This is analogous to the msecs_to_jiffies()
cleanup in commit ca42aaf0c861 ("time: Refactor msecs_to_jiffies")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Joe Perches <joe@perches.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Andrew Hunter <ahh@google.com>
Cc: Paul Turner <pjt@google.com>
Cc: Michal Marek <mmarek@suse.cz>
Link: http://lkml.kernel.org/r/1432832996-12129-1-git-send-email-hofrat@osadl.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/time.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index 972e3bbac963..85d5bb1d67eb 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -522,20 +522,13 @@ unsigned long __msecs_to_jiffies(const unsigned int m) } EXPORT_SYMBOL(__msecs_to_jiffies); -unsigned long usecs_to_jiffies(const unsigned int u) +unsigned long __usecs_to_jiffies(const unsigned int u) { if (u > jiffies_to_usecs(MAX_JIFFY_OFFSET)) return MAX_JIFFY_OFFSET; -#if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ) - return (u + (USEC_PER_SEC / HZ) - 1) / (USEC_PER_SEC / HZ); -#elif HZ > USEC_PER_SEC && !(HZ % USEC_PER_SEC) - return u * (HZ / USEC_PER_SEC); -#else - return (USEC_TO_HZ_MUL32 * u + USEC_TO_HZ_ADJ32) - >> USEC_TO_HZ_SHR32; -#endif + return _usecs_to_jiffies(u); } -EXPORT_SYMBOL(usecs_to_jiffies); +EXPORT_SYMBOL(__usecs_to_jiffies); /* * The TICK_NSEC - 1 rounds up the value to the next resolution. Note |