mm/vmalloc.c: support HIGHMEM pages in vmap_pages_range_noflush()

If the pages being mapped are in HIGHMEM, page_address() returns NULL. 
This probably wasn't noticed before because there aren't currently any
architectures with HAVE_ARCH_HUGE_VMALLOC and HIGHMEM, but it's simpler to
call page_to_phys() and futureproofs us against such configurations
existing.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings")
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Reviewed-by: William Kucharski <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Cc: Uladzislau Rezki <[email protected]>
Cc: Nicholas Piggin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions