kernel_samsung_smdk4412/include/asm-generic/cputime.h, branch replicant-6.0

cputime: Clean up cputime_to_usecs and usecs_to_cputime macros

2015-12-02T20:40:03+00:00

Get rid of semicolon so that those expressions can be used also
somewhere else than just in an assignment.

Signed-off-by: Michal Hocko 
Acked-by: Arnd Bergmann 
Cc: Dave Jones 
Cc: Alexey Dobriyan 
Link: http://lkml.kernel.org/r/7565417ce30d7e6b1ddc169843af0777dbf66e75.1314172057.git.mhocko@suse.cz
Signed-off-by: Thomas Gleixner 

Change-Id: I0ffcd25ee16589fd98906d3d9f5ee20200542175

time: Add nsecs_to_cputime64 interface for asm-generic

2011-01-26T11:33:20+00:00

Add nsecs_to_cputime64 interface. This is used in following patches that
updates cpu irq stat based on ns granularity info in IRQ_TIME_ACCOUNTING.

Tested-by: Shaun Ruffell 
Signed-off-by: Venkatesh Pallipadi 
Signed-off-by: Peter Zijlstra 
LKML-Reference: <1292980144-28796-3-git-send-email-venki@google.com>
Signed-off-by: Ingo Molnar

taskstats: use real microsecond granularity for CPU times

2010-10-28T01:03:17+00:00

The taskstats interface uses microsecond granularity for the user and
system time values.  The conversion from cputime to the taskstats values
uses the cputime_to_msecs primitive which effectively limits the
granularity to milliseconds.  Add the cputime_to_usecs primitive for
architectures that have better, more precise CPU time values.  Remove
cputime_to_msecs primitive because there are no more users left.

Signed-off-by: Michael Holzheu 
Acked-by: Balbir Singh 
Cc: Luck Tony 
Cc: Shailabh Nagar 
Cc: Martin Schwidefsky 
Cc: Oleg Nesterov 
Cc: Benjamin Herrenschmidt 
Cc: Heiko Carstens 
Cc: Thomas Gleixner 
Cc: Shailabh Nagar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cputime: Optimize jiffies_to_cputime(1)

2009-08-03T12:48:36+00:00

For powerpc with CONFIG_VIRT_CPU_ACCOUNTING
jiffies_to_cputime(1) is not compile time constant and run time
calculations are quite expensive. To optimize we use
precomputed value. For all other architectures is is
preprocessor definition.

Signed-off-by: Stanislaw Gruszka 
Acked-by: Peter Zijlstra 
Acked-by: Thomas Gleixner 
Cc: Oleg Nesterov 
Cc: Andrew Morton 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
LKML-Reference: <1248862529-6063-5-git-send-email-sgruszka@redhat.com>
Signed-off-by: Ingo Molnar

taskstats scaled time cleanup

2008-02-06T18:41:00+00:00

This moves the ability to scale cputime into generic code.  This allows us
to fix the issue in kernel/timer.c (noticed by Balbir) where we could only
add an unscaled value to the scaled utime/stime.

This adds a cputime_to_scaled function.  As before, the POWERPC version
does the scaling based on the last SPURR/PURR ratio calculated.  The
generic and s390 (only other arch to implement asm/cputime.h) versions are
both NOPs.

Also moves the SPURR and PURR snapshots closer.

Signed-off-by: Michael Neuling 
Cc: Jay Lan 
Cc: Paul Mackerras 
Cc: Benjamin Herrenschmidt 
Cc: Heiko Carstens 
Cc: Martin Schwidefsky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[CPUFREQ] Remove slowdown from ondemand sampling path.

2006-06-30T05:29:47+00:00

Remove slowdown from ondemand sampling path. This reduces the code path length
in dbs_check_cpu() by half. slowdown was not used by ondemand by default.
If there are any user level tools that were using this tunable, they
may report error now.

Signed-off-by: Alexey Starikovskiy 
Signed-off-by: Venkatesh Pallipadi 
Signed-off-by: Dave Jones

Linux-2.6.12-rc2

2005-04-16T22:20:36+00:00

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!