summaryrefslogtreecommitdiffstats
path: root/include/linux/ktime.h
diff options
context:
space:
mode:
authorDaniel Borkmann <dborkman@redhat.com>2013-04-16 01:29:10 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-19 16:39:13 -0400
commit6e94d1ef37e439bf45659cc071553574ccb98080 (patch)
treeac0b5b9e98210b43a0b1e4ea62607ce41e24dbd7 /include/linux/ktime.h
parentcf270148662a117c04753d17324e3bd28ce0396a (diff)
downloadlinux-stable-6e94d1ef37e439bf45659cc071553574ccb98080.tar.gz
linux-stable-6e94d1ef37e439bf45659cc071553574ccb98080.tar.bz2
linux-stable-6e94d1ef37e439bf45659cc071553574ccb98080.zip
net: socket: move ktime2ts to ktime header api
Currently, ktime2ts is a small helper function that is only used in net/socket.c. Move this helper into the ktime API as a small inline function, so that i) it's maintained together with ktime routines, and ii) also other files can make use of it. The function is named ktime_to_timespec_cond() and placed into the generic part of ktime, since we internally make use of ktime_to_timespec(). ktime_to_timespec() itself does not check the ktime variable for zero, hence, we name this function ktime_to_timespec_cond() for only a conditional conversion, and adapt its users to it. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/ktime.h')
-rw-r--r--include/linux/ktime.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index e83512f63df5..bbca12804d12 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -330,6 +330,24 @@ static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec)
extern ktime_t ktime_add_safe(const ktime_t lhs, const ktime_t rhs);
+/**
+ * ktime_to_timespec_cond - convert a ktime_t variable to timespec
+ * format only if the variable contains data
+ * @kt: the ktime_t variable to convert
+ * @ts: the timespec variable to store the result in
+ *
+ * Returns true if there was a successful conversion, false if kt was 0.
+ */
+static inline bool ktime_to_timespec_cond(const ktime_t kt, struct timespec *ts)
+{
+ if (kt.tv64) {
+ *ts = ktime_to_timespec(kt);
+ return true;
+ } else {
+ return false;
+ }
+}
+
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an