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| author | Joel Fernandes (Google) <joel@joelfernandes.org> | 2019-07-24 18:48:16 +0200 |
|---|---|---|
| committer | Christian Brauner <christian@brauner.io> | 2019-07-29 17:20:19 +0200 |
| commit | 1caf7d50f46bd0388e38e653b146aa81700e8eb8 (patch) | |
| tree | f98d18c6f5c7a5233bcba6d4e9969cffa4e82f4c /kernel/workqueue.c | |
| parent | pidfd: remove obsolete comments from test (diff) | |
| download | linux-1caf7d50f46bd0388e38e653b146aa81700e8eb8.tar.xz linux-1caf7d50f46bd0388e38e653b146aa81700e8eb8.zip | |
pidfd: Add warning if exit_state is 0 during notification
Previously a condition got missed where the pidfd waiters are awakened
before the exit_state gets set. This can result in a missed notification
[1] and the polling thread waiting forever.
It is fixed now, however it would be nice to avoid this kind of issue
going unnoticed in the future. So just add a warning to catch it in the
future.
/* References */
[1]: https://lore.kernel.org/lkml/20190717172100.261204-1-joel@joelfernandes.org/
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20190724164816.201099-1-joel@joelfernandes.org
Signed-off-by: Christian Brauner <christian@brauner.io>
Diffstat (limited to 'kernel/workqueue.c')
0 files changed, 0 insertions, 0 deletions