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mm: remove CONFIG_MIGRATE_VMA_HELPER

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CONFIG_MIGRATE_VMA_HELPER guards helpers that are required for proper
devic private memory support.  Remove the option and just check for
CONFIG_DEVICE_PRIVATE instead.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[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 09:59:28 +02:00 • committed by Jason Gunthorpe
commit 9b2ed9cb97
3 changed files with 2 additions and 6 deletions
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4
mm/migrate.c
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@ -2117,7 +2117,7 @@ out_unlock:
#endif /* CONFIG_NUMA */
#if defined(CONFIG_MIGRATE_VMA_HELPER)
#ifdef CONFIG_DEVICE_PRIVATE
static int migrate_vma_collect_hole(unsigned long start,
unsigned long end,
struct mm_walk *walk)
@ -2942,4 +2942,4 @@ void migrate_vma_finalize(struct migrate_vma *migrate)
}
}
EXPORT_SYMBOL(migrate_vma_finalize);
#endif /* defined(MIGRATE_VMA_HELPER) */
#endif /* CONFIG_DEVICE_PRIVATE */