diff options
| author | Peter Zijlstra <[email protected]> | 2018-07-30 13:21:40 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-08-02 15:25:20 +0200 |
| commit | b80a2bfce85e1051056d98d04ecb2d0b55cbbc1c (patch) | |
| tree | 14df7b9e65a904bdd3e5126cdd494e9ec16affa9 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | b6a60cf36d497e7fbde9dd5b86fabd96850249f6 (diff) | |
stop_machine: Reflow cpu_stop_queue_two_works()
The code flow in cpu_stop_queue_two_works() is a little arcane; fix this by
lifting the preempt_disable() to the top to create more natural nesting wrt
the spinlocks and make the wake_up_q() and preempt_enable() unconditional
at the end.
Furthermore, enable preemption in the -EDEADLK case, such that we spin-wait
with preemption enabled.
Suggested-by: Thomas Gleixner <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Sebastian Andrzej Siewior <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions