---

yaml --- r: 206155 b: refs/heads/master c: 47916be h: refs/heads/master i: 206153: affd100 206151: 4ebb953 v: v3
git-mirror · Jul 28, 2010 · b8e4ef9 · b8e4ef9
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d75d68cfef4936ddf38d2694ae2f7d1f7c45db05
+refs/heads/master: 47916be4e28c3d6fdb97dd8fb887d1d9b3145b9d
diff --git a/trunk/Documentation/feature-removal-schedule.txt b/trunk/Documentation/feature-removal-schedule.txt
@@ -549,16 +549,6 @@ Who:	Avi Kivity <avi@redhat.com>
 
 ----------------------------
 
-What:	xtime, wall_to_monotonic
-When:	2.6.36+
-Files:	kernel/time/timekeeping.c include/linux/time.h
-Why:	Cleaning up timekeeping internal values. Please use
-	existing timekeeping accessor functions to access
-	the equivalent functionality.
-Who:	John Stultz <johnstul@us.ibm.com>
-
-----------------------------
-
 What:	KVM kernel-allocated memory slots
 When:	July 2010
 Why:	Since 2.6.25, kvm supports user-allocated memory slots, which are

diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt
@@ -73,7 +73,6 @@ parameter is applicable:
 	MTD	MTD (Memory Technology Device) support is enabled.
 	NET	Appropriate network support is enabled.
 	NUMA	NUMA support is enabled.
-	GENERIC_TIME The generic timeofday code is enabled.
 	NFS	Appropriate NFS support is enabled.
 	OSS	OSS sound support is enabled.
 	PV_OPS	A paravirtualized kernel is enabled.
@@ -468,7 +467,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			clocksource is not available, it defaults to PIT.
 			Format: { pit | tsc | cyclone | pmtmr }
 
-	clocksource=	[GENERIC_TIME] Override the default clocksource
+	clocksource=	Override the default clocksource
 			Format: <string>
 			Override the default clocksource and use the clocksource
 			with the name specified.

diff --git a/trunk/arch/alpha/Kconfig b/trunk/arch/alpha/Kconfig
@@ -47,10 +47,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_CMOS_UPDATE
         def_bool y
 

diff --git a/trunk/arch/arm/Kconfig b/trunk/arch/arm/Kconfig
@@ -41,10 +41,6 @@ config SYS_SUPPORTS_APM_EMULATION
 config GENERIC_GPIO
 	bool
 
-config GENERIC_TIME
-	bool
-	default y
-
 config ARCH_USES_GETTIMEOFFSET
 	bool
 	default n

diff --git a/trunk/arch/avr32/Kconfig b/trunk/arch/avr32/Kconfig
@@ -45,9 +45,6 @@ config GENERIC_IRQ_PROBE
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_CLOCKEVENTS
 	def_bool y
 

diff --git a/trunk/arch/blackfin/Kconfig b/trunk/arch/blackfin/Kconfig
@@ -614,9 +614,6 @@ comment "Kernel Timer/Scheduler"
 
 source kernel/Kconfig.hz
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_CLOCKEVENTS
 	bool "Generic clock events"
 	default y

diff --git a/trunk/arch/cris/Kconfig b/trunk/arch/cris/Kconfig
@@ -20,9 +20,6 @@ config RWSEM_GENERIC_SPINLOCK
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_CMOS_UPDATE
 	def_bool y
 

diff --git a/trunk/arch/frv/Kconfig b/trunk/arch/frv/Kconfig
@@ -40,10 +40,6 @@ config GENERIC_HARDIRQS_NO__DO_IRQ
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config TIME_LOW_RES
 	bool
 	default y

diff --git a/trunk/arch/h8300/Kconfig b/trunk/arch/h8300/Kconfig
@@ -62,10 +62,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_BUG
         bool
         depends on BUG

diff --git a/trunk/arch/ia64/Kconfig b/trunk/arch/ia64/Kconfig
@@ -82,10 +82,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_TIME_VSYSCALL
 	bool
 	default y

diff --git a/trunk/arch/ia64/kernel/time.c b/trunk/arch/ia64/kernel/time.c
@@ -471,7 +471,8 @@ void update_vsyscall_tz(void)
 {
 }
 
-void update_vsyscall(struct timespec *wall, struct clocksource *c, u32 mult)
+void update_vsyscall(struct timespec *wall, struct timespec *wtm,
+			struct clocksource *c, u32 mult)
 {
         unsigned long flags;
 
@@ -487,9 +488,9 @@ void update_vsyscall(struct timespec *wall, struct clocksource *c, u32 mult)
 	/* copy kernel time structures */
         fsyscall_gtod_data.wall_time.tv_sec = wall->tv_sec;
         fsyscall_gtod_data.wall_time.tv_nsec = wall->tv_nsec;
-        fsyscall_gtod_data.monotonic_time.tv_sec = wall_to_monotonic.tv_sec
+	fsyscall_gtod_data.monotonic_time.tv_sec = wtm->tv_sec
 							+ wall->tv_sec;
-        fsyscall_gtod_data.monotonic_time.tv_nsec = wall_to_monotonic.tv_nsec
+	fsyscall_gtod_data.monotonic_time.tv_nsec = wtm->tv_nsec
 							+ wall->tv_nsec;
 
 	/* normalize */

diff --git a/trunk/arch/m32r/Kconfig b/trunk/arch/m32r/Kconfig
@@ -44,9 +44,6 @@ config HZ
 	int
 	default 100
 
-config GENERIC_TIME
-	def_bool y
-
 config ARCH_USES_GETTIMEOFFSET
 	def_bool y
 

diff --git a/trunk/arch/m68k/Kconfig b/trunk/arch/m68k/Kconfig
@@ -59,9 +59,6 @@ config HZ
 	int
 	default 100
 
-config GENERIC_TIME
-	def_bool y
-
 config ARCH_USES_GETTIMEOFFSET
 	def_bool y
 

diff --git a/trunk/arch/m68knommu/Kconfig b/trunk/arch/m68knommu/Kconfig
@@ -63,10 +63,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_CMOS_UPDATE
 	bool
 	default y

diff --git a/trunk/arch/microblaze/Kconfig b/trunk/arch/microblaze/Kconfig
@@ -48,9 +48,6 @@ config GENERIC_IRQ_PROBE
 config GENERIC_CALIBRATE_DELAY
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_TIME_VSYSCALL
 	def_bool n
 

diff --git a/trunk/arch/mips/Kconfig b/trunk/arch/mips/Kconfig
@@ -733,10 +733,6 @@ config GENERIC_CLOCKEVENTS
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_CMOS_UPDATE
 	bool
 	default y

diff --git a/trunk/arch/mn10300/Kconfig b/trunk/arch/mn10300/Kconfig
@@ -46,9 +46,6 @@ config GENERIC_FIND_NEXT_BIT
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_BUG
 	def_bool y
 

diff --git a/trunk/arch/parisc/Kconfig b/trunk/arch/parisc/Kconfig
@@ -66,10 +66,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_TIME
-	bool
-	default y
-
 config TIME_LOW_RES
 	bool
 	depends on SMP

diff --git a/trunk/arch/powerpc/Kconfig b/trunk/arch/powerpc/Kconfig
@@ -29,9 +29,6 @@ config MMU
 config GENERIC_CMOS_UPDATE
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_TIME_VSYSCALL
 	def_bool y
 

diff --git a/trunk/arch/powerpc/kernel/time.c b/trunk/arch/powerpc/kernel/time.c
@@ -796,10 +796,30 @@ static cycle_t timebase_read(struct clocksource *cs)
 	return (cycle_t)get_tb();
 }
 
-static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
-			       u64 new_tb_to_xs, struct timespec *now,
-			       u32 frac_sec)
+void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+			struct clocksource *clock, u32 mult)
 {
+	u64 new_tb_to_xs, new_stamp_xsec;
+	u32 frac_sec;
+
+	if (clock != &clocksource_timebase)
+		return;
+
+	/* Make userspace gettimeofday spin until we're done. */
+	++vdso_data->tb_update_count;
+	smp_mb();
+
+	/* XXX this assumes clock->shift == 22 */
+	/* 4611686018 ~= 2^(20+64-22) / 1e9 */
+	new_tb_to_xs = (u64) mult * 4611686018ULL;
+	new_stamp_xsec = (u64) wall_time->tv_nsec * XSEC_PER_SEC;
+	do_div(new_stamp_xsec, 1000000000);
+	new_stamp_xsec += (u64) wall_time->tv_sec * XSEC_PER_SEC;
+
+	BUG_ON(wall_time->tv_nsec >= NSEC_PER_SEC);
+	/* this is tv_nsec / 1e9 as a 0.32 fraction */
+	frac_sec = ((u64) wall_time->tv_nsec * 18446744073ULL) >> 32;
+
 	/*
 	 * tb_update_count is used to allow the userspace gettimeofday code
 	 * to assure itself that it sees a consistent view of the tb_to_xs and
@@ -811,43 +831,17 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
 	 * We expect the caller to have done the first increment of
 	 * vdso_data->tb_update_count already.
 	 */
-	vdso_data->tb_orig_stamp = new_tb_stamp;
+	vdso_data->tb_orig_stamp = clock->cycle_last;
 	vdso_data->stamp_xsec = new_stamp_xsec;
 	vdso_data->tb_to_xs = new_tb_to_xs;
-	vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
-	vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
-	vdso_data->stamp_xtime = *now;
+	vdso_data->wtom_clock_sec = wtm->tv_sec;
+	vdso_data->wtom_clock_nsec = wtm->tv_nsec;
+	vdso_data->stamp_xtime = *wall_time;
 	vdso_data->stamp_sec_fraction = frac_sec;
 	smp_wmb();
 	++(vdso_data->tb_update_count);
 }
 
-void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
-		     u32 mult)
-{
-	u64 t2x, stamp_xsec;
-	u32 frac_sec;
-
-	if (clock != &clocksource_timebase)
-		return;
-
-	/* Make userspace gettimeofday spin until we're done. */
-	++vdso_data->tb_update_count;
-	smp_mb();
-
-	/* XXX this assumes clock->shift == 22 */
-	/* 4611686018 ~= 2^(20+64-22) / 1e9 */
-	t2x = (u64) mult * 4611686018ULL;
-	stamp_xsec = (u64) wall_time->tv_nsec * XSEC_PER_SEC;
-	do_div(stamp_xsec, 1000000000);
-	stamp_xsec += (u64) wall_time->tv_sec * XSEC_PER_SEC;
-
-	BUG_ON(wall_time->tv_nsec >= NSEC_PER_SEC);
-	/* this is tv_nsec / 1e9 as a 0.32 fraction */
-	frac_sec = ((u64) wall_time->tv_nsec * 18446744073ULL) >> 32;
-	update_gtod(clock->cycle_last, stamp_xsec, t2x, wall_time, frac_sec);
-}
-
 void update_vsyscall_tz(void)
 {
 	/* Make userspace gettimeofday spin until we're done. */

diff --git a/trunk/arch/s390/Kconfig b/trunk/arch/s390/Kconfig
@@ -40,9 +40,6 @@ config ARCH_HAS_ILOG2_U64
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_TIME_VSYSCALL
 	def_bool y
 

diff --git a/trunk/arch/s390/kernel/time.c b/trunk/arch/s390/kernel/time.c
@@ -207,8 +207,8 @@ struct clocksource * __init clocksource_default_clock(void)
 	return &clocksource_tod;
 }
 
-void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
-		     u32 mult)
+void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+			struct clocksource *clock, u32 mult)
 {
 	if (clock != &clocksource_tod)
 		return;
@@ -219,8 +219,8 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
 	vdso_data->xtime_tod_stamp = clock->cycle_last;
 	vdso_data->xtime_clock_sec = wall_time->tv_sec;
 	vdso_data->xtime_clock_nsec = wall_time->tv_nsec;
-	vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
-	vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
+	vdso_data->wtom_clock_sec = wtm->tv_sec;
+	vdso_data->wtom_clock_nsec = wtm->tv_nsec;
 	vdso_data->ntp_mult = mult;
 	smp_wmb();
 	++vdso_data->tb_update_count;

diff --git a/trunk/arch/score/Kconfig b/trunk/arch/score/Kconfig
@@ -55,9 +55,6 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
-config GENERIC_TIME
-	def_bool y
-
 config SCHED_NO_NO_OMIT_FRAME_POINTER
 	def_bool y
 

diff --git a/trunk/arch/sh/Kconfig b/trunk/arch/sh/Kconfig
@@ -98,9 +98,6 @@ config GENERIC_CALIBRATE_DELAY
 config GENERIC_IOMAP
 	bool
 
-config GENERIC_TIME
-	def_bool y
-
 config GENERIC_CLOCKEVENTS
 	def_bool y
 

diff --git a/trunk/arch/sparc/Kconfig b/trunk/arch/sparc/Kconfig
@@ -66,9 +66,6 @@ config BITS
 	default 32 if SPARC32
 	default 64 if SPARC64
 
-config GENERIC_TIME
-	def_bool y
-
 config ARCH_USES_GETTIMEOFFSET
 	bool
 	default y if SPARC32

diff --git a/trunk/arch/um/Kconfig.common b/trunk/arch/um/Kconfig.common
@@ -55,10 +55,6 @@ config GENERIC_BUG
 	default y
 	depends on BUG
 
-config GENERIC_TIME
-	bool
-	default y
-
 config GENERIC_CLOCKEVENTS
 	bool
 	default y