[PATCH] powerpc/pseries: explicitly reschedule during drmem_lmb list traversal

[Michael Ellerman]

Michael Ellerman <patch-notifications at ellerman.id.au> writes:
> On Tue, 28 Jul 2020 12:37:41 -0500, Nathan Lynch wrote:
>> The drmem lmb list can have hundreds of thousands of entries, and
>> unfortunately lookups take the form of linear searches. As long as
>> this is the case, traversals have the potential to monopolize the CPU
>> and provoke lockup reports, workqueue stalls, and the like unless
>> they explicitly yield.
>> 
>> Rather than placing cond_resched() calls within various
>> for_each_drmem_lmb() loop blocks in the code, put it in the iteration
>> expression of the loop macro itself so users can't omit it.
>
> Applied to powerpc/next.
>
> [1/1] powerpc/pseries: explicitly reschedule during drmem_lmb list traversal
>       https://git.kernel.org/powerpc/c/9d6792ffe140240ae54c881cc4183f9acc24b4df

Some script gremlins here, I actually applied v3 (only once).

cheers