vcs.maemo.org Git - kernel-bfs/blob - kernel-bfs-2.6.28/debian/patches/ck/mm-idleprio_prio-1.patch

   1 Set the effective priority of idleprio tasks to that of nice 19 tasks when
   2 modifying vm reclaim behaviour.
   3
   4 Signed-off-by: Con Kolivas <kernel@kolivas.org>
   5
   6  include/linux/sched.h |    2 +-
   7  mm/vmscan.c           |    2 ++
   8  2 files changed, 3 insertions(+), 1 deletion(-)
   9
  10 Index: linux-2.6.34-ck1/mm/vmscan.c
  11 ===================================================================
  12 --- linux-2.6.34-ck1.orig/mm/vmscan.c   2010-05-18 12:26:16.942194964 +1000
  13 +++ linux-2.6.34-ck1/mm/vmscan.c        2010-05-18 12:26:17.090444482 +1000
  14 @@ -1711,6 +1711,8 @@ static inline int effective_sc_prio(stru
  15         if (likely(p->mm)) {
  16                 if (rt_task(p))
  17                         return -20;
  18 +               if (p->policy == SCHED_IDLEPRIO)
  19 +                       return 19;
  20                 return task_nice(p);
  21         }
  22         return 0;
  23 Index: linux-2.6.34-ck1/include/linux/sched.h
  24 ===================================================================
  25 --- linux-2.6.34-ck1.orig/include/linux/sched.h 2010-05-18 12:26:16.086194917 +1000
  26 +++ linux-2.6.34-ck1/include/linux/sched.h      2010-05-18 12:26:17.091445870 +1000
  27 @@ -38,9 +38,9 @@
  28  #define SCHED_BATCH            3
  29  /* SCHED_ISO: Implemented on BFS only */
  30  #define SCHED_IDLE             5
  31 +#define SCHED_IDLEPRIO         SCHED_IDLE
  32  #ifdef CONFIG_SCHED_BFS
  33  #define SCHED_ISO              4
  34 -#define SCHED_IDLEPRIO         SCHED_IDLE
  35  #define SCHED_MAX              (SCHED_IDLEPRIO)
  36  #define SCHED_RANGE(policy)    ((policy) <= SCHED_MAX)
  37  #endif
  38