| commit | 802934b2cfde463b72cc1b9bc1c081895a90be53 | [log] [tgz] |
|---|---|---|
| author | Mike Snitzer <snitzer@redhat.com> | Fri Aug 05 12:29:06 2016 -0400 |
| committer | Mike Snitzer <snitzer@redhat.com> | Mon Aug 15 09:23:14 2016 -0400 |
| tree | 248f0398c49bbf71371d0a9b1eb2151b53290993 | |
| parent | 694d0d0bb2030d2e36df73e2d23d5770511dbc8d [diff] |
dm round robin: do not use this_cpu_ptr() without having preemption disabled
Use local_irq_save() to disable preemption before calling
this_cpu_ptr().
Reported-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Fixes: b0b477c7e0dd ("dm round robin: use percpu 'repeat_count' and 'current_path'")
Cc: stable@vger.kernel.org # 4.6+
Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>