This repository has been archived by the owner on Aug 5, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 19
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
irqwork: push most work into softirq context
Initially we defered all irqwork into softirq because we didn't want the latency spikes if perf or another user was busy and delayed the RT task. The NOHZ trigger (nohz_full_kick_work) was the first user that did not work as expected if it did not run in the original irqwork context so we had to bring it back somehow for it. push_irq_work_func is the second one that requires this. This patch adds the IRQ_WORK_HARD_IRQ which makes sure the callback runs in raw-irq context. Everything else is defered into softirq context. Without -RT we have the orignal behavior. This patch incorporates tglx orignal work which revoked a little bringing back the arch_irq_work_raise() if possible and a few fixes from Steven Rostedt and Mike Galbraith, Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
- Loading branch information
1 parent
b75ccd4
commit e6f3637
Showing
5 changed files
with
42 additions
and
14 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters