Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 1/3] x86/mm: Check for pfn instead of page in vmalloc_sync_one() | Date | Mon, 15 Jul 2019 13:02:10 +0200 |
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From: Joerg Roedel <jroedel@suse.de>
Do not require a struct page for the mapped memory location because it might not exist. This can happen when an ioremapped region is mapped with 2MB pages.
Signed-off-by: Joerg Roedel <jroedel@suse.de> --- arch/x86/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 794f364cb882..4a4049f6d458 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -200,7 +200,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) if (!pmd_present(*pmd)) set_pmd(pmd, *pmd_k); else - BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k)); + BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k)); return pmd_k; } -- 2.17.1
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