linux-toradex.git/include/linux/ktime.h, branch v2.6.23.14

[KTIME]: Introduce ktime_add_us

2007-07-11T05:15:26+00:00

Signed-off-by: Arnaldo Carvalho de Melo

[KTIME]: Introduce ktime_us_delta

2007-07-11T05:15:25+00:00

This provides a reusable time difference function which returns the difference in
microseconds, as often used in the DCCP code.

Commiter note: renamed ktime_delta to ktime_us_delta and put it in ktime.h.

Signed-off-by: Gerrit Renker 
Signed-off-by: Arnaldo Carvalho de Melo

[TCP]: Congestion control API RTT sampling fix

2007-06-15T22:08:43+00:00

Commit 164891aadf1721fca4dce473bb0e0998181537c6 broke RTT
sampling of congestion control modules. Inaccurate timestamps
could be fed to them without providing any way for them to
identify such cases. Previously RTT sampler was called only if
FLAG_RETRANS_DATA_ACKED was not set filtering inaccurate
timestamps nicely. In addition, the new behavior could give an
invalid timestamp (zero) to RTT sampler if only skbs with
TCPCB_RETRANS were ACKed. This solves both problems.

Signed-off-by: Ilpo Järvinen 
Signed-off-by: David S. Miller

declare struct ktime

2007-05-09T19:30:54+00:00

Some smarty went and inflicted ktime_t as a typedef upon us, so we cannot
forward declare it.

Create a new `union ktime', map ktime_t onto that.  Now we need to kill off
this ktime_t thing.

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

[TCP]: Fix linkage errors on i386.

2007-04-26T05:29:49+00:00

To avoid raw division, use ktime_to_timeval() to get usec.

Signed-off-by: YOSHIFUJI Hideaki 
Signed-off-by: David S. Miller

[PATCH] fix MTIME_SEC_MAX on 32-bit

2007-03-17T02:25:07+00:00

The maximum seconds value we can handle on 32bit is LONG_MAX.

Cc: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] hrtimers: add high resolution timer support

2007-02-16T16:13:59+00:00

Implement high resolution timers on top of the hrtimers infrastructure and the
clockevents / tick-management framework.  This provides accurate timers for
all hrtimer subsystem users.

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

[PATCH] Numerous fixes to kernel-doc info in source files.

2007-02-11T18:51:32+00:00

A variety of (mostly) innocuous fixes to the embedded kernel-doc content in
source files, including:

  * make multi-line initial descriptions single line
  * denote some function names, constants and structs as such
  * change erroneous opening '/*' to '/**' in a few places
  * reword some text for clarity

Signed-off-by: Robert P. J. Day 
Cc: "Randy.Dunlap" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] ktime: Fix signed / unsigned mismatch in ktime_to_ns

2006-12-07T16:39:37+00:00

The 32 bit implementation of ktime_to_ns returns unsigned value, while the
64 bit version correctly returns an signed value.  There is no current user
affected by this, but it has to be fixed, as ktime values can be negative.

Pointed-out-by: Helmut Duregger 
Signed-off-by: Thomas Gleixner 
Acked-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] prevent timespec/timeval to ktime_t overflow

2006-09-06T18:00:02+00:00

Frank v.  Waveren pointed out that on 64bit machines the timespec to
ktime_t conversion might overflow.  This is also true for timeval to
ktime_t conversions.  This breaks a "sleep inf" on 64bit machines.

While a timespec/timeval with tx.sec = MAX_LONG is valid by specification
the internal representation of ktime_t is based on nanoseconds.  The
conversion of seconds to nanoseconds overflows for seconds values >=
(MAX_LONG / NSEC_PER_SEC).

Check the seconds argument to the conversion and limit it to the maximum
time which can be represented by ktime_t.

Signed-off-by: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: Frank v Waveren 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds