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| author | Matthew Wilcox <willy@infradead.org> | 2022-08-18 22:07:41 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-11 20:25:56 -0700 |
| commit | 08262ac50a7e4d70ee92b34746ea54a0ba51739a (patch) | |
| tree | e92539d9cbf55d51bf5d70e0b28b252177b2a443 /mm/vmalloc.c | |
| parent | b8dd3ee9cacc2398700e5227931988931871e020 (diff) | |
| download | linux-08262ac50a7e4d70ee92b34746ea54a0ba51739a.tar.gz | |
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/Yv6qHc6e+m7TMWhi@casper.infradead.org
Fixes: 121e6f3258fe ("mm/vmalloc: hugepage vmalloc mappings")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Uladzislau Rezki <urezki@gmail.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index dd6cdb201195..e68c0081e861 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -590,7 +590,7 @@ int vmap_pages_range_noflush(unsigned long addr, unsigned long end, int err; err = vmap_range_noflush(addr, addr + (1UL << page_shift), - __pa(page_address(pages[i])), prot, + page_to_phys(pages[i]), prot, page_shift); if (err) return err; |