The quilt patch titled Subject: tools/mm/page_owner_sort: fix timestamp comparison for stable sorting has been removed from the -mm tree. Its filename was tools-mm-page_owner_sort-fix-timestamp-comparison-for-stable-sorting.patch
This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------ From: Kaushlendra Kumar kaushlendra.kumar@intel.com Subject: tools/mm/page_owner_sort: fix timestamp comparison for stable sorting Date: Tue, 9 Dec 2025 10:15:52 +0530
The ternary operator in compare_ts() returns 1 when timestamps are equal, causing unstable sorting behavior. Replace with explicit three-way comparison that returns 0 for equal timestamps, ensuring stable qsort ordering and consistent output.
Link: https://lkml.kernel.org/r/20251209044552.3396468-1-kaushlendra.kumar@intel.c... Fixes: 8f9c447e2e2b ("tools/vm/page_owner_sort.c: support sorting pid and time") Signed-off-by: Kaushlendra Kumar kaushlendra.kumar@intel.com Cc: Chongxi Zhao zhaochongxi2019@email.szu.edu.cn Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
tools/mm/page_owner_sort.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/tools/mm/page_owner_sort.c~tools-mm-page_owner_sort-fix-timestamp-comparison-for-stable-sorting +++ a/tools/mm/page_owner_sort.c @@ -181,7 +181,11 @@ static int compare_ts(const void *p1, co { const struct block_list *l1 = p1, *l2 = p2;
- return l1->ts_nsec < l2->ts_nsec ? -1 : 1; + if (l1->ts_nsec < l2->ts_nsec) + return -1; + if (l1->ts_nsec > l2->ts_nsec) + return 1; + return 0; }
static int compare_cull_condition(const void *p1, const void *p2) _
Patches currently in -mm which might be from kaushlendra.kumar@intel.com are
tools-mm-thp_swap_allocator_test-fix-small-folio-alignment.patch tools-mm-slabinfo-fix-partial-long-option-mapping.patch