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bpf: Remove migrate_disable in kprobe_multi_link_prog_run #5682

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bpf: Remove migrate_disable in kprobe_multi_link_prog_run #5682

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@kernel-patches-daemon-bpf-rc kernel-patches-daemon-bpf-rc bot commented Aug 5, 2025

Pull request for series with
subject: bpf: Remove migrate_disable in kprobe_multi_link_prog_run
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=988441

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Upstream branch: f3af62b
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=988441
version: 1

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Upstream branch: f3af62b
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=988441
version: 1

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kernel-patches-daemon-bpf-rc bot commented Aug 5, 2025

Upstream branch: f3af62b
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=988441
version: 1

bpf: Remove migrate_disable in kprobe_multi_link_prog_run
5092798 
bpf program should run under migration disabled, kprobe_multi_link_prog_run
called the way from graph tracer, which disables preemption in
function_graph_enter_regs, as Jiri and Yonghong suggested, there is no
need to use migrate_disable. As a result, some overhead maybe will be
reduced.

Fixes: 0dcac27 ("bpf: Add multi kprobe link")
Signed-off-by: Tao Chen <[email protected]>
Acked-by: Yonghong Song <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
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Upstream branch: f3af62b
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=988496
version: 2

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Upstream branch: f3af62b
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@kernel-patches-daemon-bpf-rc kernel-patches-daemon-bpf-rc bot force-pushed the bpf-next_base branch 4 times, most recently from 51c6121 to ed19bc9 Compare August 5, 2025 23:24
@theihor theihor closed this Aug 6, 2025
@kernel-patches-daemon-bpf-rc kernel-patches-daemon-bpf-rc bot deleted the series/988441=>bpf-next branch August 8, 2025 07:35
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