hugetlb: batch TLB flushes when freeing vmemmap

Now that a list of pages is deduplicated at once, the TLB flush can be
batched for all vmemmap pages that got remapped.

Expand the flags field value to pass whether to skip the TLB flush on
remap of the PTE.

The TLB flush is global as we don't have guarantees from caller that the
set of folios is contiguous, or to add complexity in composing a list of
kVAs to flush.

Modified by Mike Kravetz to perform TLB flush on single folio if an
error is encountered.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Joao Martins <[email protected]>
Signed-off-by: Mike Kravetz <[email protected]>
Reviewed-by: Muchun Song <[email protected]>
Cc: Anshuman Khandual <[email protected]>
Cc: Barry Song <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: James Houghton <[email protected]>
Cc: Konrad Dybcio <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Miaohe Lin <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Usama Arif <[email protected]>
Cc: Xiongchun Duan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions