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Peter Zijlstra 3e51f33fcc sched: add optional support for CONFIG_HAVE_UNSTABLE_SCHED_CLOCK 
this replaces the rq->clock stuff (and possibly cpu_clock()).

 - architectures that have an 'imperfect' hardware clock can set
   CONFIG_HAVE_UNSTABLE_SCHED_CLOCK

 - the 'jiffie' window might be superfulous when we update tick_gtod
   before the __update_sched_clock() call in sched_clock_tick()

 - cpu_clock() might be implemented as:

     sched_clock_cpu(smp_processor_id())

   if the accuracy proves good enough - how far can TSC drift in a
   single jiffie when considering the filtering and idle hooks?

[ mingo@elte.hu: various fixes and cleanups ]

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-05 23:56:18 +02:00
..
acpi
asm-alpha fix asm-alpha/types.h breakage 2008-05-04 14:45:55 -07:00
asm-arm arm: types: use <asm-generic/int-*.h> for the arm architecture 2008-05-02 16:18:20 -07:00
asm-avr32 avr32: types: use <asm-generic/int-*.h> for the avr32 architecture 2008-05-02 16:18:20 -07:00
asm-blackfin blackfin: types: use <asm-generic/int-*.h> for the blackfin architecture 2008-05-02 16:18:20 -07:00
asm-cris cris: types: use <asm-generic/int-*.h> for the cris architecture 2008-05-02 16:18:20 -07:00
asm-frv frv: types: use <asm-generic/int-*.h> for the frv architecture 2008-05-02 16:18:20 -07:00
asm-generic types: add C99-style constructors to <asm-generic/int-*.h> 2008-05-02 16:18:42 -07:00
asm-h8300 h8300: types: use <asm-generic/int-*.h> for the h8300 architecture 2008-05-02 16:18:21 -07:00
asm-ia64 ia64: types: use <asm-generic/int-*.h> for the ia64 architecture 2008-05-02 16:18:21 -07:00
asm-m32r m32r: types: use <asm-generic/int-*.h> for the m32r architecture 2008-05-02 16:18:21 -07:00
asm-m68k m68k: types: use <asm-generic/int-*.h> for the m68k architecture 2008-05-02 16:18:28 -07:00
asm-m68knommu m68knommu: rework definition of HZ 2008-05-01 08:08:36 -07:00
asm-mips fix asm-mips/types.h syntax error 2008-05-04 14:45:55 -07:00
asm-mn10300 mn10300: types: use <asm-generic/int-*.h> for the mn10300 architecture 2008-05-02 16:18:31 -07:00
asm-parisc parisc: types: use <asm-generic/int-*.h> for the parisc architecture 2008-05-02 16:18:32 -07:00
asm-powerpc KVM: ppc: Handle guest idle by emulating MSR[WE] writes 2008-05-04 14:44:44 +03:00
asm-ppc [RAPIDIO] Move include/asm-ppc/rio.h to asm-powerpc 2008-04-29 19:40:27 +10:00
asm-s390 s390: types: use <asm-generic/int-*.h> for the s390 architecture 2008-05-02 16:18:40 -07:00
asm-sh sh: types: use <asm-generic/int-*.h> for the sh architecture 2008-05-02 16:18:40 -07:00
asm-sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-inttypes 2008-05-03 10:54:23 -07:00
asm-sparc64 sparc64: types: use <asm-generic/int-*.h> for the sparc64 architecture 2008-05-02 16:18:41 -07:00
asm-um rename div64_64 to div64_u64 2008-05-01 08:03:58 -07:00
asm-v850 v850: types: use <asm-generic/int-*.h> for the v850 architecture 2008-05-02 16:18:41 -07:00
asm-x86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-fixes 2008-05-04 17:11:43 -07:00
asm-xtensa xtensa: types: use <asm-generic/int-*.h> for the xtensa architecture 2008-05-02 16:18:42 -07:00
crypto [CRYPTO] api: Fix scatterwalk_sg_chain 2008-05-01 18:22:28 +08:00
keys
linux sched: add optional support for CONFIG_HAVE_UNSTABLE_SCHED_CLOCK 2008-05-05 23:56:18 +02:00
math-emu
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb 2008-04-29 14:53:40 -07:00
mtd
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-30 08:45:48 -07:00
pcmcia
rdma IB: expand ib_umem_get() prototype 2008-04-29 08:06:12 -07:00
rxrpc
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-05-02 13:52:35 -07:00
sound [ALSA] Add MPU401_INFO_NO_ACK bitflag 2008-04-29 19:01:56 +02:00
video fbdev: platforming hecubafb and n411 2008-04-28 08:58:41 -07:00
xen
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