From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [patch V2 60/64] timekeeping: Use tk_read_base as argument for timekeeping_get_ns()
Date: Wed, 16 Jul 2014 21:05:18 -0000 [thread overview]
Message-ID: <20140716205057.302769279@linutronix.de> (raw)
In-Reply-To: <20140716205018.175419210@linutronix.de>
[-- Attachment #1: timekeeping-change-get-ns-arg-to-tkr.patch --]
[-- Type: text/plain, Size: 3227 bytes --]
All the function needs is in the tk_read_base struct. No functional
change for the current code, just a preparatory patch for the NMI safe
accessor to clock monotonic which will use struct tk_read_base as well.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
kernel/time/timekeeping.c | 22 +++++++++++-----------
1 file changed, 11 insertions(+), 11 deletions(-)
Index: tip/kernel/time/timekeeping.c
===================================================================
--- tip.orig/kernel/time/timekeeping.c
+++ tip/kernel/time/timekeeping.c
@@ -173,19 +173,19 @@ u32 (*arch_gettimeoffset)(void) = defaul
static inline u32 arch_gettimeoffset(void) { return 0; }
#endif
-static inline s64 timekeeping_get_ns(struct timekeeper *tk)
+static inline s64 timekeeping_get_ns(struct tk_read_base *tkr)
{
cycle_t cycle_now, delta;
s64 nsec;
/* read clocksource: */
- cycle_now = tk->tkr.read(tk->tkr.clock);
+ cycle_now = tkr->read(tkr->clock);
/* calculate the delta since the last update_wall_time: */
- delta = clocksource_delta(cycle_now, tk->tkr.cycle_last, tk->tkr.mask);
+ delta = clocksource_delta(cycle_now, tkr->cycle_last, tkr->mask);
- nsec = delta * tk->tkr.mult + tk->tkr.xtime_nsec;
- nsec >>= tk->tkr.shift;
+ nsec = delta * tkr->mult + tkr->xtime_nsec;
+ nsec >>= tkr->shift;
/* If arch requires, add in get_arch_timeoffset() */
return nsec + arch_gettimeoffset();
@@ -372,7 +372,7 @@ int __getnstimeofday64(struct timespec64
seq = read_seqcount_begin(&tk_core.seq);
ts->tv_sec = tk->xtime_sec;
- nsecs = timekeeping_get_ns(tk);
+ nsecs = timekeeping_get_ns(&tk->tkr);
} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -413,7 +413,7 @@ ktime_t ktime_get(void)
do {
seq = read_seqcount_begin(&tk_core.seq);
base = tk->tkr.base_mono;
- nsecs = timekeeping_get_ns(tk);
+ nsecs = timekeeping_get_ns(&tk->tkr);
} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -439,7 +439,7 @@ ktime_t ktime_get_with_offset(enum tk_of
do {
seq = read_seqcount_begin(&tk_core.seq);
base = ktime_add(tk->tkr.base_mono, *offset);
- nsecs = timekeeping_get_ns(tk);
+ nsecs = timekeeping_get_ns(&tk->tkr);
} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -509,7 +509,7 @@ void ktime_get_ts64(struct timespec64 *t
do {
seq = read_seqcount_begin(&tk_core.seq);
ts->tv_sec = tk->xtime_sec;
- nsec = timekeeping_get_ns(tk);
+ nsec = timekeeping_get_ns(&tk->tkr);
tomono = tk->wall_to_monotonic;
} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -547,7 +547,7 @@ void getnstime_raw_and_real(struct times
ts_real->tv_nsec = 0;
nsecs_raw = timekeeping_get_ns_raw(tk);
- nsecs_real = timekeeping_get_ns(tk);
+ nsecs_real = timekeeping_get_ns(&tk->tkr);
} while (read_seqcount_retry(&tk_core.seq, seq));
@@ -1624,7 +1624,7 @@ ktime_t ktime_get_update_offsets_now(kti
seq = read_seqcount_begin(&tk_core.seq);
base = tk->tkr.base_mono;
- nsecs = timekeeping_get_ns(tk);
+ nsecs = timekeeping_get_ns(&tk->tkr);
*offs_real = tk->offs_real;
*offs_boot = tk->offs_boot;
next prev parent reply other threads:[~2014-07-16 21:07 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-16 21:03 [patch V2 00/64] timekeeping: 2038, optimizations, NMI safe accessors Thomas Gleixner
2014-07-16 21:03 ` [patch V2 01/64] tile: Convert VDSO timekeeping to the precise mechanism Thomas Gleixner
2014-07-16 21:03 ` [patch V2 02/64] timekeeping: Simplify arch_gettimeoffset() Thomas Gleixner
2014-07-16 21:03 ` [patch V2 03/64] hrtimer: Cleanup hrtimer accessors to the timekepeing state Thomas Gleixner
2014-07-16 21:03 ` [patch V2 04/64] ktime: Kill non-scalar ktime_t implementation for 2038 Thomas Gleixner
2014-07-16 21:03 ` [patch V2 05/64] ktime: Sanitize ktime_to_us/ms conversion Thomas Gleixner
2014-07-16 21:03 ` [patch V2 06/64] ktime: Change ktime_set() to take 64bit seconds value Thomas Gleixner
2014-07-16 21:03 ` [patch V2 07/64] time64: Add time64.h header and define struct timespec64 Thomas Gleixner
2014-07-16 21:03 ` [patch V2 08/64] time: More core infrastructure for timespec64 Thomas Gleixner
2014-07-16 21:04 ` [patch V2 09/64] timekeeping: Convert timekeeping core to use timespec64s Thomas Gleixner
2014-07-16 21:04 ` [patch V2 10/64] time: Consolidate the time accessor prototypes Thomas Gleixner
2014-07-16 21:04 ` [patch V2 11/64] timekeeping: Provide timespec64 based interfaces Thomas Gleixner
2014-07-16 21:04 ` [patch V2 12/64] timekeeper: Move tk_xtime to core code Thomas Gleixner
2014-07-23 21:15 ` John Stultz
2014-07-23 21:59 ` Thomas Gleixner
2014-07-16 21:04 ` [patch V2 13/64] timekeeping: Cache optimize struct timekeeper Thomas Gleixner
2014-07-16 21:04 ` [patch V2 14/64] timekeeping: Use timekeeping_update() instead of memcpy() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 15/64] timekeeping: Provide internal ktime_t based data Thomas Gleixner
2014-07-16 21:04 ` [patch V2 16/64] timekeeping: Use ktime_t based data for ktime_get() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 17/64] timekeeping: Provide ktime_get_with_offset() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 18/64] timekeeping: Use ktime_t based data for ktime_get_real() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 19/64] timekeeping; Use ktime_t based data for ktime_get_boottime() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 20/64] timekeeping: Use ktime_t based data for ktime_get_clocktai() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 21/64] timekeeping: Use ktime_t data for ktime_get_update_offsets_now() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 22/64] timekeeping; Use ktime based data for ktime_get_update_offsets_tick() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 23/64] timekeeping: Provide ktime_mono_to_any() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 24/64] timerfd: Use ktime_mono_to_real() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 25/64] input: evdev: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 26/64] drm: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 27/64] timekeeping: Remove ktime_get_monotonic_offset() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 28/64] timekeeping: Provide ktime_get[*]_ns() helpers Thomas Gleixner
2014-07-16 21:04 ` [patch V2 29/64] time: Export nsecs_to_jiffies() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 30/64] sched: Make task->real_start_time nanoseconds based Thomas Gleixner
2014-07-16 21:04 ` [patch V2 31/64] sched: Make task->start_time " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 32/64] delayacct: Make accounting nanosecond based Thomas Gleixner
2014-07-16 21:04 ` [patch V2 33/64] delayacct: Remove braindamaged type conversions Thomas Gleixner
2014-07-16 21:04 ` [patch V2 34/64] powerpc: cell: Use ktime_get_ns() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 35/64] connector: " Thomas Gleixner
2014-07-16 21:06 ` Evgeniy Polyakov
2014-07-16 21:04 ` [patch V2 36/64] mfd: cros_ec_spi: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 37/64] misc: ioc4: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 38/64] net: mlx5: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 39/64] fs: lockd: " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 40/64] hwmon: ibmaem: " Thomas Gleixner
2014-07-21 8:37 ` Jean Delvare
2014-07-21 21:38 ` Darrick J. Wong
2014-07-16 21:04 ` [patch V2 41/64] iio: Use ktime_get_real_ns() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 42/64] arm: bL_switcher:k " Thomas Gleixner
2014-07-16 21:04 ` [patch V2 43/64] x86: kvm: Use ktime_get_boot_ns() Thomas Gleixner
2014-07-17 10:58 ` Paolo Bonzini
2014-07-16 21:04 ` [patch V2 44/64] x86: kvm: Make kvm_get_time_and_clockread() nanoseconds based Thomas Gleixner
2014-07-17 10:58 ` Paolo Bonzini
2014-07-16 21:04 ` [patch V2 45/64] timekeeping: Remove monotonic_to_bootbased Thomas Gleixner
2014-07-16 21:04 ` [patch V2 46/64] timekeeping: Use ktime_get_boottime() for get_monotonic_boottime() Thomas Gleixner
2014-07-16 21:04 ` [patch V2 47/64] timekeeping: Simplify getboottime() Thomas Gleixner
2014-07-16 21:05 ` [patch V2 48/64] timekeeping: Remove timekeeper.total_sleep_time Thomas Gleixner
2014-07-16 21:05 ` [patch V2 49/64] timekeeping: Simplify timekeeping_clocktai() Thomas Gleixner
2014-07-16 21:05 ` [patch V2 50/64] hangcheck-timer: Use ktime_get_ns() Thomas Gleixner
2014-07-16 22:08 ` Greg Kroah-Hartman
2014-07-16 21:05 ` [patch V2 51/64] timekeeping: Provide ktime_get_raw() Thomas Gleixner
2014-07-16 21:05 ` [patch V2 52/64] drm: i915: Use nsec based interfaces Thomas Gleixner
2014-07-16 21:05 ` [patch V2 53/64] drm: vmwgfx: " Thomas Gleixner
2014-07-16 21:05 ` [patch V2 54/64] wireless: ath9k: Get rid of timespec conversions Thomas Gleixner
2014-07-16 21:05 ` [patch V2 55/64] clocksource: Make delta calculation a function Thomas Gleixner
2014-07-16 21:05 ` [patch V2 56/64] clocksource: Move cycle_last validation to core code Thomas Gleixner
2014-07-16 21:05 ` [patch V2 57/64] clocksource: Get rid of cycle_last Thomas Gleixner
2014-07-16 21:05 ` [patch V2 58/64] timekeeping: Restructure the timekeeper some more Thomas Gleixner
2014-07-16 21:05 ` [patch V2 59/64] timekeeping: Create struct tk_read_base and use it in struct timekeeper Thomas Gleixner
2014-07-16 21:05 ` Thomas Gleixner [this message]
2014-07-16 21:05 ` [patch V2 61/64] seqcount: Provide raw_read_seqcount() Thomas Gleixner
2014-07-16 21:05 ` [patch V2 62/64] seqcount: Add raw_write_seqcount_latch() Thomas Gleixner
2014-07-16 21:05 ` [patch V2 63/64] timekeeping: Provide fast and NMI safe access to CLOCK_MONOTONIC Thomas Gleixner
2014-07-16 21:05 ` [patch V2 64/64] ftrace: Provide trace clocks monotonic Thomas Gleixner
2014-07-17 12:55 ` Steven Rostedt
2014-07-17 13:12 ` Steven Rostedt
2014-07-17 22:32 ` [patch V2 00/64] timekeeping: 2038, optimizations, NMI safe accessors Thomas Gleixner
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