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- insert arm_release_timer() in add_relese() path
- arm_release_timer() uses __hrtimer_start_range_ns() instead of
hrtimer_start() to avoid deadlock on rq->lock.
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infrastructure
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Still to be merged:
- arm_release_timer() with no rq locking
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Use kfifo [kernel/kfifo.c] to implement the ring buffer used
for sched_trace (TRACE() and TRACE_TASK() macros)
This patch also includes some reorganization of sched_trace.c code
and some fixes:
- 1c39c59b3 Fix GFP_KERNEL in rb_alloc_buf with interrupt disabled.
- 193ad2688 Let TRACE() log buffer size and comment converge.
- 6195e2ae8 re-enable capturing of printk() messages in TRACE() logs.
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- fix requesting more than 2^11 pages (MAX_ORDER)
to system allocator
Still to be merged:
- feather-trace generic implementation
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Port 2008.3 Core LITMUS^RT infrastructure to Linux 2.6.32
litmus_sched_class implements 4 new methods:
- prio_changed:
void
- switched_to:
void
- get_rr_interval:
return infinity (i.e., 0)
- select_task_rq:
return current cpu
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