[RFC PATCH 3/3] mm: Implement for_each_valid_pfn() for CONFIG_SPARSEMEM

Mike Rapoport rppt at kernel.org
Thu Apr 3 07:25:06 PDT 2025


On Thu, Apr 03, 2025 at 03:17:44PM +0100, David Woodhouse wrote:
> On Thu, 2025-04-03 at 17:13 +0300, Mike Rapoport wrote:
> >  
> > > static inline bool first_valid_pfn(unsigned long *p_pfn)
> > > {
> > >  	unsigned long pfn = *p_pfn;
> > >  	unsigned long nr = pfn_to_section_nr(pfn);
> > >  	struct mem_section *ms;
> > > 
> > >  	rcu_read_lock_sched();
> > > 
> > >  	while (nr <= __highest_present_section_nr) {
> > >  		ms = __pfn_to_section(pfn);
> > 
> > Maybe move the declaration here:
> > 
> >  	struct mem_section *ms = __pfn_to_section(pfn);
> 
> Ack.
> 
> https://git.infradead.org/users/dwmw2/linux.git/shortlog/refs/heads/for_each_valid_pfn

Fine with me, keep the RB tag :)


-- 
Sincerely yours,
Mike.



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