linux-stable.git/kernel/time/tick-internal.h, branch v3.13.2

time: Fix signedness bug in sysfs_get_uname() and its callers

2013-10-18T23:45:58+00:00

sysfs_get_uname() is erroneously declared as returning size_t even
though it may return a negative value, specifically -EINVAL.  Its
callers then check whether its return value is less than zero and indeed
that is never the case for size_t.

This patch changes sysfs_get_uname() to return ssize_t and makes sure
its callers use ssize_t accordingly.

Signed-off-by: Patrick Palka 
[jstultz: Didn't apply cleanly, as a similar partial fix was also applied
so had to resolve the collisions]
Signed-off-by: John Stultz

clockevents: Define CS_NAME_LEN unconditionally

2013-05-28T07:28:02+00:00

Unbreak architectures which do not use clockevents, but require to
build some of the core timekeeping infrastructure

Reported-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner

clockevents: Implement unbind functionality

2013-05-16T09:09:18+00:00

Provide a sysfs interface to allow unbinding of clockevent
devices. The device is unbound if it is unused or if there is a
replacement device available. Unbinding of broadcast devices is not
supported as we don't want to foster that nonsense. If no replacement
device is available the unbind returns -EBUSY. Unbind is available
from the kernel and through sysfs, which is necessary to drop the
module refcount.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.499216659@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Move the tick_notify() switch case to clockevents_notify()

2013-05-16T09:09:16+00:00

No need to call another function and have duplicated cases.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.235746557@linutronix.de
Signed-off-by: Thomas Gleixner

clockevents: Get rid of the notifier chain

2013-05-16T09:09:16+00:00

7+ years and still a single user. Kill it.

Signed-off-by: Thomas Gleixner 
Cc: John Stultz 
Cc: Magnus Damm 
Link: http://lkml.kernel.org/r/20130425143436.098520211@linutronix.de
Signed-off-by: Thomas Gleixner

Merge branch 'fortglx/3.10/time' of git://git.linaro.org/people/jstultz/linux into timers/core

2013-04-03T10:27:29+00:00

timekeeping: Make jiffies_lock internal

2013-03-22T23:20:00+00:00

Nothing outside of the timekeeping core needs that lock.

Signed-off-by: Thomas Gleixner 
Signed-off-by: John Stultz

tick: Convert broadcast cpu bitmaps to cpumask_var_t

2013-03-07T15:13:26+00:00

Signed-off-by: Thomas Gleixner 
Link: http://lkml.kernel.org/r/20130306111537.366394000@linutronix.de
Cc: Rusty Russell

time: Kill xtime_lock, replacing it with jiffies_lock

2012-11-13T19:08:23+00:00

Now that timekeeping is protected by its own locks, rename
the xtime_lock to jifffies_lock to better describe what it
protects.

CC: Thomas Gleixner 
CC: Eric Dumazet 
CC: Richard Cochran 
Signed-off-by: John Stultz

clockevents: Make minimum delay adjustments configurable

2011-09-08T09:10:56+00:00

The automatic increase of the min_delta_ns of a clockevents device
should be done in the clockevents code as the minimum delay is an
attribute of the clockevents device.

In addition not all architectures want the automatic adjustment, on a
massively virtualized system it can happen that the programming of a
clock event fails several times in a row because the virtual cpu has
been rescheduled quickly enough. In that case the minimum delay will
erroneously be increased with no way back. The new config symbol
GENERIC_CLOCKEVENTS_MIN_ADJUST is used to enable the automatic
adjustment. The config option is selected only for x86.

Signed-off-by: Martin Schwidefsky 
Cc: john stultz 
Link: http://lkml.kernel.org/r/20110823133142.494157493@de.ibm.com
Signed-off-by: Thomas Gleixner