From 53cc7bad37fcb90e47ef729ef9818a2ed93ee862 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner 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 Signed-off-by: John Stultz --- 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)); -- 2.20.1