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| author |   Jens Axboe <axboe@fb.com> | 2017-05-09 11:39:56 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-05-10 07:40:18 -0600 |
| commit | d3738123986954ba3abbd96b595f5176b50c3f5d (patch) | |
| tree | 67770332a697a8496a60c75ca8583dec06b3ceda /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | elevator: remove redundant warnings on IO scheduler switch (diff) | |
| download | linux-rng-d3738123986954ba3abbd96b595f5176b50c3f5d.tar.xz linux-rng-d3738123986954ba3abbd96b595f5176b50c3f5d.zip | |
blk-stat: don't use this_cpu_ptr() in a preemptable section
If PREEMPT_RCU is enabled, rcu_read_lock() isn't strong enough
for us to use this_cpu_ptr() in that section. Use the safer
get/put_cpu_ptr() variants instead.
Reported-by: Mike Galbraith <efault@gmx.de>
Fixes: 34dbad5d26e2 ("blk-stat: convert to callback-based statistics reporting")
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions