From 53cc7bad37fcb90e47ef729ef9818a2ed93ee862 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 16 Jul 2014 21:04:23 +0000
Subject: [PATCH] timerfd: Use ktime_mono_to_real()
We have a few other use cases of ktime_get_monotonic_offset() which
can be optimized with ktime_mono_to_real(). The timerfd code uses the
offset only for comparison, so we can use ktime_mono_to_real(0) for
this as well.
Funny enough text size shrinks with that on ARM and x8664 !?
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
fs/timerfd.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/timerfd.c b/fs/timerfd.c
index 709603cac9e6..80c350216ea8 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -93,7 +93,7 @@ static enum alarmtimer_restart timerfd_alarmproc(struct alarm *alarm,
*/
void timerfd_clock_was_set(void)
{
- ktime_t moffs = ktime_get_monotonic_offset();
+ ktime_t moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
struct timerfd_ctx *ctx;
unsigned long flags;
@@ -126,7 +126,7 @@ static bool timerfd_canceled(struct timerfd_ctx *ctx)
{
if (!ctx->might_cancel || ctx->moffs.tv64 != KTIME_MAX)
return false;
- ctx->moffs = ktime_get_monotonic_offset();
+ ctx->moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
return true;
}
@@ -405,7 +405,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
else
hrtimer_init(&ctx->t.tmr, clockid, HRTIMER_MODE_ABS);
- ctx->moffs = ktime_get_monotonic_offset();
+ ctx->moffs = ktime_mono_to_real((ktime_t){ .tv64 = 0 });
ufd = anon_inode_getfd("[timerfd]", &timerfd_fops, ctx,
O_RDWR | (flags & TFD_SHARED_FCNTL_FLAGS));
--
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