- 23 Jul, 2014 40 commits
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Thomas Gleixner authored
Convert the relevant base data right away to nanoseconds instead of doing the conversion on every readout. Reduces text size by 160 bytes. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Acked-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Use the new nanoseconds based interface and get rid of the timespec conversion dance. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Gleb Natapov <gleb@kernel.org> Cc: kvm@vger.kernel.org Acked-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Use the nanoseconds based interface instead of converting from a timespec. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
No idea why iio needs wall clock based time stamps, but we can avoid the timespec conversion dance by using the new interfaces. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Jonathan Cameron <jic23@kernel.org> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Using the wall clock time for delta time calculations is wrong to begin with because wall clock time can be set from userspace and NTP. Such data wants to be based on clock monotonic. The calculations also are done on a nanosecond basis. Use the nanoseconds based interface right away. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Jean Delvare <jdelvare@suse.de> Acked-by:
Jean Delvare <jdelvare@suse.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Trond Myklebust <trond.myklebust@primarydata.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
This code is beyond silly: struct timespec ts = ktime_get_ts(); ktime_t ktime = timespec_to_ktime(ts); Further down the code builds the delta of two ktime_t values and converts the result to nanoseconds. Use ktime_get_ns() and replace all the nonsense. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Eli Cohen <eli@mellanox.com> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Replace the ever recurring: ts = ktime_get_ts(); ns = timespec_to_ns(&ts); with ns = ktime_get_ns(); Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Converting cputime to timespec and timespec to nanoseconds makes no sense. Use cputime_to_ns() and be done with it. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Kill the timespec juggling and calculate with plain nanoseconds. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Simplify the timespec to nsec/usec conversions. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Simplify the only user of this data by removing the timespec conversion. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Required for moving drivers to the nanosecond based interfaces. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
A lot of code converts either timespecs or ktime_t to nanoseconds. Provide helper functions. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
No more users. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Convert the monotonic timestamp with ktime_mono_to_real() in drm_calc_vbltimestamp_from_scanoutpos(). In get_drm_timestamp we can call either ktime_get() or ktime_get_real() depending on drm_timestamp_monotonic. No point in having two calls into the core for CLOCK_REALTIME. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Convert the monotonic timestamp with ktime_mono_to_real() in evdev_events(). In evdev_queue_syn_dropped() we can call either ktime_get() or ktime_get_real() depending on the clkid. No point in having two calls for CLOCK_REALTIME. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
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>
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Thomas Gleixner authored
ktime based conversion function to map a monotonic time stamp to a different CLOCK. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
No need to juggle with timespecs. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
No need to juggle with timespecs. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Speed up the readout. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Provide a helper function which lets us implement ktime_t based interfaces for real, boot and tai clocks. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Speed up ktime_get() by using ktime_t based data. Text size shrinks by 64 bytes on x8664. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
The ktime_t based interfaces are used a lot in performance critical code pathes. Add ktime_t based data so the interfaces don't have to convert from the xtime/timespec based data. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
We already have a function which does the right thing, that also makes sure that the coming ktime_t based cached values are getting updated. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
struct timekeeper is quite badly sorted for the hot readout path. Most time access functions need to load two cache lines. Rearrange it so ktime_get() and getnstimeofday() are happy with a single cache line. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
No users outside of the core. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
To convert callers of the core code to timespec64 we need to provide the proper interfaces. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
Right now we have time related prototypes in 3 different header files. Move it to a single timekeeping header file and move the core internal stuff into a core private header. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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John Stultz authored
Convert the core timekeeping logic to use timespec64s. This moves the 2038 issues out of the core logic and into all of the accessor functions. Future changes will need to push the timespec64s out to all timekeeping users, but that can be done interface by interface. Signed-off-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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John Stultz authored
Helper and conversion functions for timespec64. Signed-off-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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John Stultz authored
Define the timespec64 structure and standard helper functions. [ tglx: Make it 32bit only. 64bit really can map timespec to timespec64 ] Signed-off-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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John Stultz authored
In order to support dates past 2038 on 32bit systems, ktime_set() needs to handle 64bit second values. [ tglx: Removed the BITS_PER_LONG check ] Signed-off-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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Thomas Gleixner authored
With the plain nanoseconds based ktime_t we can simply use ktime_divns() instead of going through loops and hoops of timespec/timeval conversion. Reported-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
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