Re: [PATCH v2 1/4] highmem: Enhance is_kmap_addr() to check kmap_local_page() mappings

[Ira Weiny]

Christoph Hellwig wrote:
> On Fri, Feb 03, 2023 at 08:06:32PM -0800, Ira Weiny wrote:
> > -	return addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP);
> > +
> > +	return (addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP)) ||
> > +		(addr >= __fix_to_virt(FIX_KMAP_END) &&
> > +		 addr < __fix_to_virt(FIX_KMAP_BEGIN));
> 
> Isn't the second check inverted?
> 

The enum map runs from top down.  So I believe this is correct.  I tested
it with a different series and it worked.

Ira