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| author |   Paul E. McKenney <paulmck@kernel.org> | 2020-11-15 20:33:38 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-04 13:53:39 -0800 |
| commit | 4e7ccfae52b39aeee93ed39d4184d50ea201fbef (patch) | |
| tree | bc89d83fd6df7810f3a8f535c77c260af33850b8 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | srcu: Document polling interfaces for Tree SRCU grace periods (diff) | |
| download | wireguard-linux-4e7ccfae52b39aeee93ed39d4184d50ea201fbef.tar.xz wireguard-linux-4e7ccfae52b39aeee93ed39d4184d50ea201fbef.zip | |
srcu: Add comment explaining cookie overflow/wrap
This commit adds to the poll_state_synchronize_srcu() header comment
describing the issues surrounding SRCU cookie overflow/wrap for the
different kernel configurations.
Link: https://lore.kernel.org/rcu/20201112201547.GF3365678@moria.home.lan/
Reported-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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