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authorDmitry Torokhov <dtor@insightbb.com>2006-08-04 22:50:27 -0400
committerDmitry Torokhov <dtor@insightbb.com>2006-08-04 22:50:27 -0400
commitd932cb7e630cae3b6b5307b767d296ff1a597c5e (patch)
treef930d068a12a256fabef0864bcdf8e85f095369e /include/linux/time.h
parent73b59a3b1c09e4bfc678400b77b96134dcfbf112 (diff)
parentf5d635f649607b09b0b4620d25d028fd2b1b7ea5 (diff)
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
Diffstat (limited to 'include/linux/time.h')
-rw-r--r--include/linux/time.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/time.h b/include/linux/time.h
index c05f8bb9a32..a5b739967b7 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -71,6 +71,18 @@ extern unsigned long mktime(const unsigned int year, const unsigned int mon,
extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec);
/*
+ * sub = lhs - rhs, in normalized form
+ */
+static inline struct timespec timespec_sub(struct timespec lhs,
+ struct timespec rhs)
+{
+ struct timespec ts_delta;
+ set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
+ lhs.tv_nsec - rhs.tv_nsec);
+ return ts_delta;
+}
+
+/*
* Returns true if the timespec is norm, false if denorm:
*/
#define timespec_valid(ts) \