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| author | Benjamin Berg <benjamin.berg@intel.com> | 2025-11-09 09:21:11 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-24 10:36:05 +0100 |
| commit | d4caee32a9f8fc6fff5297d662c531caef18e222 (patch) | |
| tree | ce0366d0bc086b76eff86d69edfce8a059858305 /net/wireless/trace.h | |
| parent | 0206a9341e652167c610dcd79f3d4e9e8153984c (diff) | |
| download | linux-d4caee32a9f8fc6fff5297d662c531caef18e222.tar.gz linux-d4caee32a9f8fc6fff5297d662c531caef18e222.tar.bz2 linux-d4caee32a9f8fc6fff5297d662c531caef18e222.zip | |
wifi: cfg80211: add an hrtimer based delayed work item
[ Upstream commit 7ceba45a6658ce637da334cd0ebf27f4ede6c0fe ]
The normal timer mechanism assume that timeout further in the future
need a lower accuracy. As an example, the granularity for a timer
scheduled 4096 ms in the future on a 1000 Hz system is already 512 ms.
This granularity is perfectly sufficient for e.g. timeouts, but there
are other types of events that will happen at a future point in time and
require a higher accuracy.
Add a new wiphy_hrtimer_work type that uses an hrtimer internally. The
API is almost identical to the existing wiphy_delayed_work and it can be
used as a drop-in replacement after minor adjustments. The work will be
scheduled relative to the current time with a slack of 1 millisecond.
CC: stable@vger.kernel.org # 6.4+
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251028125710.7f13a2adc5eb.I01b5af0363869864b0580d9c2a1770bafab69566@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[ replaced hrtimer_setup() call with hrtimer_init() and manual timer.function assignment ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/wireless/trace.h')
| -rw-r--r-- | net/wireless/trace.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 97c21b627791..945013185c98 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -304,6 +304,27 @@ TRACE_EVENT(wiphy_delayed_work_queue, __entry->delay) ); +TRACE_EVENT(wiphy_hrtimer_work_queue, + TP_PROTO(struct wiphy *wiphy, struct wiphy_work *work, + ktime_t delay), + TP_ARGS(wiphy, work, delay), + TP_STRUCT__entry( + WIPHY_ENTRY + __field(void *, instance) + __field(void *, func) + __field(ktime_t, delay) + ), + TP_fast_assign( + WIPHY_ASSIGN; + __entry->instance = work; + __entry->func = work->func; + __entry->delay = delay; + ), + TP_printk(WIPHY_PR_FMT " instance=%p func=%pS delay=%llu", + WIPHY_PR_ARG, __entry->instance, __entry->func, + __entry->delay) +); + TRACE_EVENT(wiphy_work_worker_start, TP_PROTO(struct wiphy *wiphy), TP_ARGS(wiphy), |