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authorThomas Gleixner <tglx@linutronix.de>2018-03-01 17:33:37 +0100
committerIngo Molnar <mingo@kernel.org>2018-03-13 07:34:23 +0100
commit127bfa5f4342e63d83a0b07ece376c2e8878e4a5 (patch)
tree238052e523cbafe07a82b4ef9406896bdffa0134 /kernel/time/hrtimer.c
parentposix-timers: Unify MONOTONIC and BOOTTIME clock behavior (diff)
downloadlinux-dev-127bfa5f4342e63d83a0b07ece376c2e8878e4a5.tar.xz
linux-dev-127bfa5f4342e63d83a0b07ece376c2e8878e4a5.zip
hrtimer: Unify MONOTONIC and BOOTTIME clock behavior
Now that th MONOTONIC and BOOTTIME clocks are indentical remove all the special casing. The user space visible interfaces still support both clocks, but their behavior is identical. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kevin Easton <kevin@guarana.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Salyzyn <salyzyn@android.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20180301165150.410218515@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to '')
-rw-r--r--kernel/time/hrtimer.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 23788100e214..9b082ce86325 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -91,11 +91,6 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) =
.get_time = &ktime_get_real,
},
{
- .index = HRTIMER_BASE_BOOTTIME,
- .clockid = CLOCK_BOOTTIME,
- .get_time = &ktime_get_boottime,
- },
- {
.index = HRTIMER_BASE_TAI,
.clockid = CLOCK_TAI,
.get_time = &ktime_get_clocktai,
@@ -111,11 +106,6 @@ DEFINE_PER_CPU(struct hrtimer_cpu_base, hrtimer_bases) =
.get_time = &ktime_get_real,
},
{
- .index = HRTIMER_BASE_BOOTTIME_SOFT,
- .clockid = CLOCK_BOOTTIME,
- .get_time = &ktime_get_boottime,
- },
- {
.index = HRTIMER_BASE_TAI_SOFT,
.clockid = CLOCK_TAI,
.get_time = &ktime_get_clocktai,
@@ -129,7 +119,7 @@ static const int hrtimer_clock_to_base_table[MAX_CLOCKS] = {
[CLOCK_REALTIME] = HRTIMER_BASE_REALTIME,
[CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC,
- [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME,
+ [CLOCK_BOOTTIME] = HRTIMER_BASE_MONOTONIC,
[CLOCK_TAI] = HRTIMER_BASE_TAI,
};
@@ -565,14 +555,12 @@ __hrtimer_get_next_event(struct hrtimer_cpu_base *cpu_base, unsigned int active_
static inline ktime_t hrtimer_update_base(struct hrtimer_cpu_base *base)
{
ktime_t *offs_real = &base->clock_base[HRTIMER_BASE_REALTIME].offset;
- ktime_t *offs_boot = &base->clock_base[HRTIMER_BASE_BOOTTIME].offset;
ktime_t *offs_tai = &base->clock_base[HRTIMER_BASE_TAI].offset;
ktime_t now = ktime_get_update_offsets_now(&base->clock_was_set_seq,
- offs_real, offs_boot, offs_tai);
+ offs_real, offs_tai);
base->clock_base[HRTIMER_BASE_REALTIME_SOFT].offset = *offs_real;
- base->clock_base[HRTIMER_BASE_BOOTTIME_SOFT].offset = *offs_boot;
base->clock_base[HRTIMER_BASE_TAI_SOFT].offset = *offs_tai;
return now;