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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-03 07:25:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-03 07:25:25 +0200 |
| commit | 119a7fdfeecefa5a4062256ac2dcd3b69eaa8414 (patch) | |
| tree | 40d834b32ce97857f3f974c95b64b6b48d415e6e /kernel/bpf/devmap.c | |
| parent | 086ebf92aa791b6cc8805decffca7b8898d99a4e (diff) | |
| parent | f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a (diff) | |
Merge 5.2-rc3 into usb-next
we want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/devmap.c')
| -rw-r--r-- | kernel/bpf/devmap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c index 191b79948424..1e525d70f833 100644 --- a/kernel/bpf/devmap.c +++ b/kernel/bpf/devmap.c @@ -164,6 +164,9 @@ static void dev_map_free(struct bpf_map *map) bpf_clear_redirect_map(map); synchronize_rcu(); + /* Make sure prior __dev_map_entry_free() have completed. */ + rcu_barrier(); + /* To ensure all pending flush operations have completed wait for flush * bitmap to indicate all flush_needed bits to be zero on _all_ cpus. * Because the above synchronize_rcu() ensures the map is disconnected |