From: Pu Lehui pulehui@huawei.com
patch 1: the mainly fix for uprobe pte be overwritten issue. patch 2: WARN_ON_ONCE for new_pte not NULL during move_ptes. patch 3: extract some utils function for upcomming selftest. patch 4: selftest related to this series.
v1: - limit skip uprobe_mmap to copy_vma flow. - add related selftest. - correct Fixes tag.
RFC v2: https://lore.kernel.org/all/20250527132351.2050820-1-pulehui@huaweicloud.com... - skip uprobe_mmap on expanded vma. - add skip_vma_uprobe field to struct vma_prepare and vma_merge_struct. (Lorenzo) - add WARN_ON_ONCE when new_pte is not NULL. (Oleg) - Corrected some of the comments.
RFC v1: https://lore.kernel.org/all/20250521092503.3116340-1-pulehui@huaweicloud.com...
Pu Lehui (4): mm: Fix uprobe pte be overwritten when expanding vma mm: Expose abnormal new_pte during move_ptes selftests/mm: Extract read_sysfs and write_sysfs into vm_util selftests/mm: Add test about uprobe pte be orphan during vma merge
mm/mremap.c | 2 ++ mm/vma.c | 20 ++++++++++-- mm/vma.h | 7 +++++ tools/testing/selftests/mm/ksm_tests.c | 32 ++------------------ tools/testing/selftests/mm/merge.c | 42 ++++++++++++++++++++++++++ tools/testing/selftests/mm/thuge-gen.c | 6 ++-- tools/testing/selftests/mm/vm_util.c | 38 +++++++++++++++++++++++ tools/testing/selftests/mm/vm_util.h | 2 ++ 8 files changed, 113 insertions(+), 36 deletions(-)