mirror of
https://github.com/torvalds/linux.git
synced 2026-10-07 05:31:08 -04:00
Alistair Popple
ab09243aa9
MIGRATE_PFN_LOCKED is used to indicate to migrate_vma_prepare() that a source page was already locked during migrate_vma_collect(). If it wasn't then the a second attempt is made to lock the page. However if the first attempt failed it's unlikely a second attempt will succeed, and the retry adds complexity. So clean this up by removing the retry and MIGRATE_PFN_LOCKED flag. Destination pages are also meant to have the MIGRATE_PFN_LOCKED flag set, but nothing actually checks that. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Alistair Popple <[email protected]> Reviewed-by: Ralph Campbell <[email protected]> Acked-by: Felix Kuehling <[email protected]> Cc: Alex Deucher <[email protected]> Cc: Jerome Glisse <[email protected]> Cc: John Hubbard <[email protected]> Cc: Zi Yan <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Ben Skeggs <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>