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Commit b035b6de authored Feb 10, 2007 by Alexey Dobriyan Committed by Linus Torvalds Feb 11, 2007

[PATCH] Consolidate default sched_clock()



Use attribute(weak).

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 5e07e1cc

arch/alpha/kernel/time.c

+0 −11

Original line number	Diff line number	Diff line
		@@ -90,17 +90,6 @@ static inline __u32 rpcc(void)
		return result;
		}

		/*
		* Scheduler clock - returns current time in nanosec units.
		*
		* Copied from ARM code for expediency... ;-}
		*/
		unsigned long long sched_clock(void)
		{
		return (unsigned long long)jiffies * (1000000000 / HZ);
		}


		/*
		* timer_interrupt() needs to keep up the real-time clock,
		* as well as call the "do_timer()" routine every clocktick

arch/arm/kernel/time.c

+0 −10

Original line number	Diff line number	Diff line
		@@ -77,16 +77,6 @@ static unsigned long dummy_gettimeoffset(void)
		}
		#endif

		/*
		* Scheduler clock - returns current time in nanosec units.
		* This is the default implementation. Sub-architecture
		* implementations can override this.
		*/
		unsigned long long __attribute__((weak)) sched_clock(void)
		{
		return (unsigned long long)jiffies * (1000000000 / HZ);
		}

		/*
		* An implementation of printk_clock() independent from
		* sched_clock(). This avoids non-bootable kernels when

arch/arm26/kernel/time.c

+0 −8

Original line number	Diff line number	Diff line
		@@ -89,14 +89,6 @@ static unsigned long gettimeoffset(void)
		return (offset + LATCH/2) / LATCH;
		}

		/*
		* Scheduler clock - returns current time in nanosec units.
		*/
		unsigned long long sched_clock(void)
		{
		return (unsigned long long)jiffies * (1000000000 / HZ);
		}

		static unsigned long next_rtc_update;

		/*

arch/avr32/kernel/time.c

+0 −9

Original line number	Diff line number	Diff line
		@@ -109,15 +109,6 @@ static void avr32_hpt_init(unsigned int count)
		sysreg_write(COUNT, count);
		}

		/*
		* Scheduler clock - returns current time in nanosec units.
		*/
		unsigned long long sched_clock(void)
		{
		/* There must be better ways...? */
		return (unsigned long long)jiffies * (1000000000 / HZ);
		}

		/*
		* local_timer_interrupt() does profiling and process accounting on a
		* per-CPU basis.

arch/cris/kernel/time.c

+0 −8

Original line number	Diff line number	Diff line
		@@ -216,14 +216,6 @@ cris_do_profile(struct pt_regs* regs)
		#endif
		}

		/*
		* Scheduler clock - returns current time in nanosec units.
		*/
		unsigned long long sched_clock(void)
		{
		return (unsigned long long)jiffies * (1000000000 / HZ);
		}

		static int
		__init init_udelay(void)
		{