diff options
| author | Zhaoyang Huang <[email protected]> | 2022-01-25 14:56:58 +0800 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2022-02-16 15:57:54 +0100 |
| commit | e6df4ead85d9da1b07dd40bd4c6d2182f3e210c4 (patch) | |
| tree | 1af29301a0595cc3d539c7927b31d41e6a5812ce /lib/test_fortify/write_overflow-strlcpy-src.c | |
| parent | 5c7b1aaf139dab5072311853bacc40fc3457d1f9 (diff) | |
psi: fix possible trigger missing in the window
When a new threshold breaching stall happens after a psi event was
generated and within the window duration, the new event is not
generated because the events are rate-limited to one per window. If
after that no new stall is recorded then the event will not be
generated even after rate-limiting duration has passed. This is
happening because with no new stall, window_update will not be called
even though threshold was previously breached. To fix this, record
threshold breaching occurrence and generate the event once window
duration is passed.
Suggested-by: Suren Baghdasaryan <[email protected]>
Signed-off-by: Zhaoyang Huang <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Acked-by: Johannes Weiner <[email protected]>
Acked-by: Suren Baghdasaryan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'lib/test_fortify/write_overflow-strlcpy-src.c')
0 files changed, 0 insertions, 0 deletions