On Tue, Feb 9, 2021 at 10:01 PM Alexei Starovoitov
<alexei.starovoitov@xxxxxxxxx> wrote:
>
> From: Alexei Starovoitov <ast@xxxxxxxxxx>
>
> In older non-RT kernels migrate_disable() was the same as preempt_disable().
> Since commit 74d862b682f5 ("sched: Make migrate_disable/enable() independent of RT")
nit: It would be nice to split out the bit that adds
migrate_disbale/enable into a separate patch
just to make it more explicit.
> migrate_disable() is real and doesn't prevent sleeping.
> Use it to efficiently compute execution stats for sleepable bpf programs.
> migrate_disable() will also be used to enable per-cpu maps in sleepable programs
> in the future patches.
>
> Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
> Acked-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
Just the optional comment about splitting the migrate_enable / disable bit.
Acked-by: KP Singh <kpsingh@xxxxxxxxxx>
