16 Dec, 2009

1 commit

• f065f41f4   timecompare: fix half-Y2K38 problem in timecompare_update while calculating offset ... Browse Code »

  ktime will overflow from 03:14:07 UTC on Tuesday, 19 January 2038,
  ktime_add() in timecompare_update() will overflow a half earlier. As a
  result, wrong offset will be gotten, then cause some strange problems.

  Signed-off-by: Barry Song
  Cc: Thomas Gleixner
  Cc: Ingo Molnar
  Cc: Patrick Ohly
  Cc: David S. Miller
  Cc: John Stultz
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Barry Song

  2009-12-16 23:19:57 +0800  

12 Nov, 2009

1 commit

• 3586e0a9a   clocksource/timecompare: Fix symbol exports to be GPL'd. ... Browse Code »

  Noticed by Thomas GLeixner.

  Signed-off-by: David S. Miller

  David S. Miller

  2009-11-12 11:06:30 +0800  

16 Feb, 2009

1 commit

• a75244c3d   timecompare: generic infrastructure to map between two time bases ... Browse Code »

  Mapping from a struct timecounter to a time returned by functions like
  ktime_get_real() is implemented. This is sufficient to use this code
  in a network device driver which wants to support hardware time
  stamping and transformation of hardware time stamps to system time.

  The interface could have been made more versatile by not depending on
  a time counter, but this wasn't done to avoid writing glue code
  elsewhere.

  The method implemented here is the one used and analyzed under the name
  "assisted PTP" in the LCI PTP paper:
  http://www.linuxclustersinstitute.org/conferences/archive/2008/PDF/Ohly_92221.pdf

  Acked-by: John Stultz
  Signed-off-by: Patrick Ohly
  Signed-off-by: David S. Miller

  Patrick Ohly

  2009-02-16 14:43:32 +0800