selftests/mm: fix split_huge_page_test for folio_split() tests

PID_FMT does not have an offset field, so folio_split() tests are not
performed.  Add PID_FMT_OFFSET with an offset field and use it to perform
folio_split() tests.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 80a5c494c89f ("selftests/mm: add tests for folio_split(), buddy allocator like split")
Signed-off-by: Zi Yan <[email protected]>
Tested-by: Baolin Wang <[email protected]>
Reviewed-by: Lorenzo Stoakes <[email protected]>
Reviewed-by: Donet Tom <[email protected]>
Tested-by : Donet Tom <[email protected]>
Cc: Barry Song <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Dev Jain <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Mariano Pache <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions