| commit | 320661b08dd6f1746d5c7ab4eb435ec64b97cd45 | [log] [tgz] |
|---|---|---|
| author | Tahsin Erdogan <tahsin@google.com> | Sat Feb 25 13:00:19 2017 -0800 |
| committer | Tejun Heo <tj@kernel.org> | Mon Mar 06 15:55:39 2017 -0500 |
| tree | bb7249336a8e2d2ab0d2d22689a5737dd78bf3e0 | |
| parent | c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 [diff] |
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
Update to pcpu_nr_empty_pop_pages in pcpu_alloc() is currently done
without holding pcpu_lock. This can lead to bad updates to the variable.
Add missing lock calls.
Fixes: b539b87fed37 ("percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated")
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v3.18+