[PATCH] hrtimer: deinline mktime and set_normalized_timespec

mktime() and set_normalized_timespec() are large inline functions used in many
places: deinline them.

From: George Anzinger, off-by-1 bugfix

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 66 insertions, 47 deletions

diff --git a/include/linux/time.h b/include/linux/time.h
index 797ccd813bb..9c444d9c4aa 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -38,38 +38,9 @@ static __inline__ int timespec_equal(struct timespec *a, struct timespec *b)
         return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
 } 
 
-/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
- * Assumes input in normal date format, i.e. 1980-12-31 23:59:59
- * => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
- *
- * [For the Julian calendar (which was used in Russia before 1917,
- * Britain & colonies before 1752, anywhere else before 1582,
- * and is still in use by some communities) leave out the
- * -year/100+year/400 terms, and add 10.]
- *
- * This algorithm was first published by Gauss (I think).
- *
- * WARNING: this function will overflow on 2106-02-07 06:28:16 on
- * machines were long is 32-bit! (However, as time_t is signed, we
- * will already get problems at other places on 2038-01-19 03:14:08)
- */
-static inline unsigned long
-mktime (unsigned int year, unsigned int mon,
-        unsigned int day, unsigned int hour,
-        unsigned int min, unsigned int sec)
-{
-        if (0 >= (int) (mon -= 2)) {    /* 1..12 -> 11,12,1..10 */
-                mon += 12;              /* Puts Feb last since it has leap day */
-                year -= 1;
-        }
-
-        return (((
-                (unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
-                        year*365 - 719499
-            )*24 + hour /* now have hours */
-          )*60 + min /* now have minutes */
-        )*60 + sec; /* finally seconds */
-}
+extern unsigned long mktime (unsigned int year, unsigned int mon,
+                             unsigned int day, unsigned int hour,
+                             unsigned int min, unsigned int sec);
 
 extern struct timespec xtime;
 extern struct timespec wall_to_monotonic;
@@ -80,6 +51,8 @@ static inline unsigned long get_seconds(void)
         return xtime.tv_sec;
 }
 
+extern void set_normalized_timespec (struct timespec *ts, time_t sec, long nsec);
+
 struct timespec current_kernel_time(void);
 
 #define CURRENT_TIME (current_kernel_time())
@@ -99,21 +72,6 @@ extern void getnstimestamp(struct timespec *ts);
 
 extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
 
-static inline void
-set_normalized_timespec (struct timespec *ts, time_t sec, long nsec)
-{
-        while (nsec >= NSEC_PER_SEC) {
-                nsec -= NSEC_PER_SEC;
-                ++sec;
-        }
-        while (nsec < 0) {
-                nsec += NSEC_PER_SEC;
-                --sec;
-        }
-        ts->tv_sec = sec;
-        ts->tv_nsec = nsec;
-}
-
 #endif /* __KERNEL__ */
 
 #define NFDBITS                 __NFDBITS
diff --git a/kernel/time.c b/kernel/time.c
index b94bfa8c03e..fa569885e22 100644
--- a/kernel/time.c
+++ b/kernel/time.c
@@ -583,6 +583,67 @@ void getnstimestamp(struct timespec *ts)
 }
 EXPORT_SYMBOL_GPL(getnstimestamp);
 
+/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
+ * Assumes input in normal date format, i.e. 1980-12-31 23:59:59
+ * => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
+ *
+ * [For the Julian calendar (which was used in Russia before 1917,
+ * Britain & colonies before 1752, anywhere else before 1582,
+ * and is still in use by some communities) leave out the
+ * -year/100+year/400 terms, and add 10.]
+ *
+ * This algorithm was first published by Gauss (I think).
+ *
+ * WARNING: this function will overflow on 2106-02-07 06:28:16 on
+ * machines were long is 32-bit! (However, as time_t is signed, we
+ * will already get problems at other places on 2038-01-19 03:14:08)
+ */
+unsigned long
+mktime (unsigned int year, unsigned int mon,
+        unsigned int day, unsigned int hour,
+        unsigned int min, unsigned int sec)
+{
+        if (0 >= (int) (mon -= 2)) {    /* 1..12 -> 11,12,1..10 */
+                mon += 12;              /* Puts Feb last since it has leap day */
+                year -= 1;
+        }
+
+        return ((((unsigned long)
+                  (year/4 - year/100 + year/400 + 367*mon/12 + day) +
+                  year*365 - 719499
+            )*24 + hour /* now have hours */
+          )*60 + min /* now have minutes */
+        )*60 + sec; /* finally seconds */
+}
+
+/**
+ * set_normalized_timespec - set timespec sec and nsec parts and normalize
+ *
+ * @ts:         pointer to timespec variable to be set
+ * @sec:        seconds to set
+ * @nsec:       nanoseconds to set
+ *
+ * Set seconds and nanoseconds field of a timespec variable and
+ * normalize to the timespec storage format
+ *
+ * Note: The tv_nsec part is always in the range of
+ *      0 <= tv_nsec < NSEC_PER_SEC
+ * For negative values only the tv_sec field is negative !
+ */
+void set_normalized_timespec (struct timespec *ts, time_t sec, long nsec)
+{
+        while (nsec >= NSEC_PER_SEC) {
+                nsec -= NSEC_PER_SEC;
+                ++sec;
+        }
+        while (nsec < 0) {
+                nsec += NSEC_PER_SEC;
+                --sec;
+        }
+        ts->tv_sec = sec;
+        ts->tv_nsec = nsec;
+}
+
 #if (BITS_PER_LONG < 64)
 u64 get_jiffies_64(void)
 {