This series consists of a refactoring/correctness of updating the metadata of tail pages, a couple of fixups for the refcounting part and a fixup for the stack_start() function. >From this series on, instead of counting the stacks, we count the outstanding nr_base_pages each stack has, which gives us a much better memory overview. The other fixup is for the migration part. A more detailed explanation can be found in the changelog of the respective patches. v3 -> v4: - Fix some typos remarked by Vlastimil - Add Reviewed-by tag from Vlastimil and Tested-by tag from Alexandre Ghiti (closed a syzbot report for RISC) Oscar Salvador (4): mm,page_owner: Update metadata for tail pages mm,page_owner: Fix refcount imbalance mm,page_owner: Fix accounting of pages when migrating mm,page_owner: Fix printing of stack records Documentation/mm/page_owner.rst | 73 +++++++------ mm/page_owner.c | 188 ++++++++++++++++++-------------- 2 files changed, 147 insertions(+), 114 deletions(-) -- 2.44.0
