[PATCH] ARM: Support arch_irq_work_raise() via self IPIs

Stephen Boyd [off-list ref] writes:

On 10/28, Kevin Hilman wrote:

quoted

Stephen Boyd [off-list ref] writes:

quoted

This will allow the scheduler tick to be restarted if we're in
full NOHZ mode.

Cc: Kevin Hilman <redacted>
Cc: Frederic Weisbecker <redacted>
Signed-off-by: Stephen Boyd <redacted>

Minor nit, but I'd prefer a more verbose changelog (I forget things
quickly and like to rely on changelogs for my memory.)  Probably worth
adding something like: "By default, irq_work is tied to the tick
processing (update_process_times()) but in full NOHZ mode, no tick means
no IRQ work.  In order for IRQ work to be done in full NOHZ mode, a
self-IPI is used to process IRQ work."

Other than the changelog nit, patch looks good, feel free to add

Reviewed-by: Kevin Hilman <redacted>

If Russell is OK with this, it can go to his patch system.

Fair enough. This is what I came up with. I'll send it off to the
patch tracker in about 12 hours if nobody else has anymore
comments.

Nice description, thanks for the respin.

Kevin