Re: [PATCH] mm, kmsan: fix infinite recursion due to RCU critical section

[Charan Teja Kalla]

On 1/18/2024 5:52 PM, Marco Elver wrote:
> It would be nice to avoid duplicating functions - both options have downsides:
> 1. Shared pfn_valid(): it might break for KMSAN again in future if new
> recursion is introduced.
> 2. KMSAN-version of pfn_valid(): it might break if pfn_valid() changes
> in future.
> 
> I suspect #1 is less likely.
> 
> What is your main concern by switching to rcu_read_lock_sched()?

No concerns from my side. Just wanted to know the thought behind
changing the pfn_valid instead of kmsan version, like for some
functions. Thanks for the clarification.