bpf: make timer data struct more generic

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[ Upstream commit be2749beff ]

To be able to add workqueues and reuse most of the timer code, we need
to make bpf_hrtimer more generic.

There is no code change except that the new struct gets a new u64 flags
attribute. We are still below 2 cache lines, so this shouldn't impact
the current running codes.

The ordering is also changed. Everything related to async callback
is now on top of bpf_hrtimer.

Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240420-bpf_wq-v2-1-6c986a5a741f@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Stable-dep-of: d4523831f0 ("bpf: Fail bpf_timer_cancel when callback is being cancelled")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Benjamin Tissoires 2024-04-20 11:09:01 +02:00 • committed by Greg Kroah-Hartman

parent e65a49b948

commit 5910035674

1 changed files with 38 additions and 33 deletions

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kernel/bpf/helpers.c

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