linux-toradex.git/kernel/timer.c, branch v2.6.23.12

Pull ia64-clocksource into release branch

2007-07-20T18:26:47+00:00

[IA64] remove time interpolator

2007-07-20T18:23:02+00:00

Remove time_interpolator code (This is generic code, but
only user was ia64.  It has been superseded by the
CONFIG_GENERIC_TIME code).

Signed-off-by: Bob Picco 
Signed-off-by: John Stultz 
Signed-off-by: Peter Keilty 
Signed-off-by: Tony Luck

timer.c: cleanup recently introduced whitespace damage

2007-07-19T17:04:52+00:00

Signed-off-by: Thomas Gleixner 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Slab allocators: Replace explicit zeroing with __GFP_ZERO

2007-07-17T17:23:02+00:00

kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing
variant in the past.  But with __GFP_ZERO it is possible now to do zeroing
while allocating.

Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever
we can.

Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Add a flag to indicate deferrable timers in /proc/timer_stats

2007-07-16T16:05:45+00:00

Add a flag in /proc/timer_stats to indicate deferrable timers.  This will
let developers/users to differentiate between types of tiemrs in
/proc/timer_stats.

Deferrable timer and normal timer will appear in /proc/timer_stats as below.
  10D,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)
   10,     1 swapper          queue_delayed_work_on (delayed_work_timer_fn)

Also version of timer_stats changes from v0.1 to v0.2

Signed-off-by: Venkatesh Pallipadi 
Acked-by: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: john stultz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Use boot based time for uptime in /proc

2007-07-16T16:05:41+00:00

Commit 411187fb05cd11676b0979d9fbf3291db69dbce2 caused uptime not to increase
during suspend.  This may cause confusion so I restore the old behaviour by
using the boot based time instead of monotonic for uptime.

Signed-off-by: Tomas Janousek 
Acked-by: John Stultz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

NOHZ: prevent multiplication overflow - stop timer for huge timeouts

2007-05-30T01:11:10+00:00

get_next_timer_interrupt() returns a delta of (LONG_MAX > 1) in case
there is no timer pending. On 64 bit machines this results in a
multiplication overflow in tick_nohz_stop_sched_tick().

Reported by: Dave Miller 

Make the return value a constant and limit the return value to a 32 bit
value.

When the max timeout value is returned, we can safely stop the tick
timer device. The max jiffies delta results in a 12 days timeout for
HZ=1000.

In the long term the get_next_timer_interrupt() code needs to be
reworked to return ktime instead of jiffies, but we have to wait until
the last users of the original NO_IDLE_HZ code are converted.

Signed-off-by: Thomas Gleixner 
Acked-off-by: David S. Miller 
Signed-off-by: Linus Torvalds

timekeeping fix patch got mis-applied

2007-05-14T19:13:11+00:00

The time keeping code move to kernel/time/timekeeping.c broke the
clocksource resume logic patch, which got applied to the old file by a
fuzzy application.  Fix it up and move the clocksource_resume() call to
the appropriate place.

Signed-off-by: Thomas Gleixner 
[ tssk, tssk, everybody should use --fuzz=0 ]
Signed-off-by: Linus Torvalds

timer: revert parenthesis fix in tbase_get_deferrable() etc

2007-05-10T16:26:53+00:00

On 09-05-2007 21:10, Pallipadi, Venkatesh wrote:
...
> On a 64 bit system, converting pointer to int causes unnecessary
> compiler warning, and intermediate long conversion was to avoid that.
> I will have to rephrase my comment to remove 32 bit value and use int,
> as that is what the function returns.

So, this patch reverts all changes done by my previous patch.

I apologize for my wrong comment about "logical error" here.

Cc: "Pallipadi, Venkatesh" 
Cc: Satyam Sharma 
Cc: Oleg Nesterov 
Signed-off-by: Jarek Poplawski 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

clocksource: fix resume logic

2007-05-09T19:30:56+00:00

We need to make sure that the clocksources are resumed, when timekeeping is
resumed.  The current resume logic does not guarantee this.

Add a resume function pointer to the clocksource struct, so clocksource
drivers which need to reinitialize the clocksource can provide a resume
function.

Add a resume function, which calls the maybe available clocksource resume
functions and resets the watchdog function, so a stable TSC can be used
accross suspend/resume.

Signed-off-by: Thomas Gleixner 
Cc: john stultz 
Cc: Andi Kleen 
Cc: Ingo Molnar 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds