diff options
author | Peter Zijlstra <[email protected]> | 2014-11-26 08:44:03 +0800 |
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committer | Ingo Molnar <[email protected]> | 2015-02-04 07:52:26 +0100 |
commit | 1019a359d3dc4b64d0e1e5a5efcb725d5e83994d (patch) | |
tree | e3ea8601967f078e09dc436670cf8dfcd903311d /lib/mpi/mpiutil.c | |
parent | a7bebf488791aa1036f3e6629daf01d01f705dcb (diff) |
sched/deadline: Fix stale yield state
When we fail to start the deadline timer in update_curr_dl(), we
forget to clear ->dl_yielded, resulting in wrecked time keeping.
Since the natural place to clear both ->dl_yielded and ->dl_throttled
is in replenish_dl_entity(); both are after all waiting for that event;
make it so.
Luckily since 67dfa1b756f2 ("sched/deadline: Implement
cancel_dl_timer() to use in switched_from_dl()") the
task_on_rq_queued() condition in dl_task_timer() must be true, and can
therefore call enqueue_task_dl() unconditionally.
Reported-by: Wanpeng Li <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Kirill Tkhai <[email protected]>
Cc: Juri Lelli <[email protected]>
Cc: Linus Torvalds <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions