1. 09 May, 2010 1 commit
    • Arjan van de Ven's avatar
      cpuidle: Fix incorrect optimization · 1c6fe036
      Arjan van de Ven authored
      commit 672917dc ("cpuidle: menu governor: reduce latency on exit")
      added an optimization, where the analysis on the past idle period moved
      from the end of idle, to the beginning of the new idle.
      
      Unfortunately, this optimization had a bug where it zeroed one key
      variable for new use, that is needed for the analysis.  The fix is
      simple, zero the variable after doing the work from the previous idle.
      
      During the audit of the code that found this issue, another issue was
      also found; the ->measured_us data structure member is never set, a
      local variable is always used instead.
      Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
      Cc: Corrado Zoccolo <czoccolo@gmail.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1c6fe036
  2. 07 May, 2010 12 commits
  3. 06 May, 2010 27 commits