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| author |   Eric Dumazet <edumazet@google.com> | 2019-10-23 22:44:48 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-28 13:33:41 -0700 |
| commit | d7d16a89350ab263484c0aa2b523dd3a234e4a80 (patch) | |
| tree | 177005e5dd42ea6ca09fa54035b4de01b48e3cb1 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf (diff) | |
| download | linux-dev-d7d16a89350ab263484c0aa2b523dd3a234e4a80.tar.xz linux-dev-d7d16a89350ab263484c0aa2b523dd3a234e4a80.zip | |
net: add skb_queue_empty_lockless()
Some paths call skb_queue_empty() without holding
the queue lock. We must use a barrier in order
to not let the compiler do strange things, and avoid
KCSAN splats.
Adding a barrier in skb_queue_empty() might be overkill,
I prefer adding a new helper to clearly identify
points where the callers might be lockless. This might
help us finding real bugs.
The corresponding WRITE_ONCE() should add zero cost
for current compilers.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions