This series grows from the patch previously posted here: [PATCH] mm/smaps: Use vma->vm_pgoff directly when counting partial swap https://lore.kernel.org/lkml/20210916215839.95177-1-peterx@xxxxxxxxxx/ Vlastimil reported a bug that is even more important to fix than the cleanup, so I put it as patch 1 here. There's a test program we can use to verify the bug before/after the patch. I used the same program to test patch 2/3 because it covers walking shmem swap both in page cache and in pgtables. Patch 2 is the original patch, though with a tiny touchup as Vlastimil suggested. Patch 3 is a further cleanup of the shmem swap logic, hopefully make it even cleaner. Please review, thanks. Peter Xu (3): mm/smaps: Fix shmem pte hole swap calculation mm/smaps: Use vma->vm_pgoff directly when counting partial swap mm/smaps: Simplify shmem handling of pte holes fs/proc/task_mmu.c | 28 ++++++++++++++++------------ mm/shmem.c | 5 ++--- 2 files changed, 18 insertions(+), 15 deletions(-) -- 2.31.1
