diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2019-04-09 19:34:03 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-31 06:46:19 -0700 |
| commit | afee27f3825399a346a8dd94849c0e644dae3374 (patch) | |
| tree | cd6aaf1e1609219fd843cf4521d8754c93e8ccb9 /usr | |
| parent | dee2faf0ac0ca79a7f3b2a651cd01c2db8e93597 (diff) | |
| download | linux-stable-afee27f3825399a346a8dd94849c0e644dae3374.tar.gz linux-stable-afee27f3825399a346a8dd94849c0e644dae3374.tar.bz2 linux-stable-afee27f3825399a346a8dd94849c0e644dae3374.zip | |
irq_work: Do not raise an IPI when queueing work on the local CPU
[ Upstream commit 471ba0e686cb13752bc1ff3216c54b69a2d250ea ]
The QEMU PowerPC/PSeries machine model was not expecting a self-IPI,
and it may be a bit surprising thing to do, so have irq_work_queue_on
do local queueing when target is the current CPU.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@kaod.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190409093403.20994-1-npiggin@gmail.com
[ Simplified the preprocessor comments.
Fixed unbalanced curly brackets pointed out by Thomas. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions