On Fri, Dec 15, 2023 at 08:02:34PM +0000, Matthew Wilcox (Oracle) wrote:

Some architectures support a very large PAGE_SIZE, so instead of the 8
pointers we see with a 4kB PAGE_SIZE, we can see 128 pointers with 64kB
or so many on Hexagon that it trips compiler warnings about exceeding
stack frame size.

All we're doing with this array is checking for block contiguity, which we
can as well do by remembering the address of the first block in the page
and checking this block is at the appropriate offset from that address.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>