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| author | Tahsin Erdogan <tahsin@google.com> | 2017-02-26 00:00:19 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2017-03-06 23:55:39 +0300 |
| commit | 320661b08dd6f1746d5c7ab4eb435ec64b97cd45 (patch) | |
| tree | bb7249336a8e2d2ab0d2d22689a5737dd78bf3e0 /mm/percpu-vm.c | |
| parent | c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff) | |
| download | linux-320661b08dd6f1746d5c7ab4eb435ec64b97cd45.tar.xz | |
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+
Diffstat (limited to 'mm/percpu-vm.c')
0 files changed, 0 insertions, 0 deletions