mm: remove the unused MIGRATE_PFN_ERROR flag
Now that we can rely errors in the normal control flow there is no need for this flag, remove it. Link: https://lore.kernel.org/r/20190814075928.23766-9-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Tested-by: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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@ -167,7 +167,6 @@ static inline int migrate_misplaced_transhuge_page(struct mm_struct *mm,
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#define MIGRATE_PFN_LOCKED (1UL << 2)
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#define MIGRATE_PFN_WRITE (1UL << 3)
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#define MIGRATE_PFN_DEVICE (1UL << 4)
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#define MIGRATE_PFN_ERROR (1UL << 5)
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#define MIGRATE_PFN_SHIFT 6
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static inline struct page *migrate_pfn_to_page(unsigned long mpfn)
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