mm/khugepaged: cleanup memcg uncharge for failure path

Explicit memcg uncharging is not needed when the memcg accounting has the
same lifespan of the page/folio.  That becomes the case for khugepaged
after Yang & Zach's recent rework so the hpage will be allocated for each
collapse rather than being cached.

Cleanup the explicit memcg uncharge in khugepaged failure path and leave
that for put_page().

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Peter Xu <[email protected]>
Suggested-by: Zach O'Keefe <[email protected]>
Reviewed-by: Zach O'Keefe <[email protected]>
Reviewed-by: Yang Shi <[email protected]>
Cc: David Stevens <[email protected]>
Cc: Johannes Weiner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions