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mm: remove the unused MIGRATE_PFN_DEVICE flag

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No one ever checks this flag, and we could easily get that information
from the page if needed.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Ralph Campbell <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Tested-by: Ralph Campbell <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
This commit is contained in:
Christoph Hellwig 2019-08-14 09:59:27 +02:00 • committed by Jason Gunthorpe
commit 06d462beb4
3 changed files with 3 additions and 5 deletions
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4
mm/migrate.c
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@ -2237,8 +2237,8 @@ again:
goto next;
page = device_private_entry_to_page(entry);
mpfn = migrate_pfn(page_to_pfn(page))|
MIGRATE_PFN_DEVICE | MIGRATE_PFN_MIGRATE;
mpfn = migrate_pfn(page_to_pfn(page)) |
MIGRATE_PFN_MIGRATE;
if (is_write_device_private_entry(entry))
mpfn |= MIGRATE_PFN_WRITE;
} else {