Fix a few Sashiko-found unurgent bugs. Patch 1 fixes use of
uninitialized damos->last_applied field. Patches 2-7 fix DAMON kunit
tests that do invalid memory access under test failures.
The bugs are better to be fixed and eventually merged into stable@
kernel. That said, the fixes are arguably not urgent. Patch 1 only
introduces negligible DAMOS efficiency degradation in occasional
cases. Kunit fixes could introduce quite bad consequences but those
are test code that affect only test run setups.
SJ Park (7):
mm/damon/core: initialize damos->last_applied
mm/damon/core-kunit: check region count before testing in split_at()
mm/damon/vaddr-kunit: check region count in three_regions test
mm/damon/core-kunit: handle region split failure in filter_out()
mm/damon/core-kunit: skip wrong dest walk in commit_dests_for()
mm/damon/core-kunit: skip wrong quota goal walk in
commit_quota_goals()
mm/damon/core-kunit: skip wrong region walk in commit_target_regions()
mm/damon/core.c | 1 +
mm/damon/tests/core-kunit.h | 28 ++++++++++++++++++++++++++--
mm/damon/tests/vaddr-kunit.h | 5 +++++
3 files changed, 32 insertions(+), 2 deletions(-)
base-commit: 1ce4cbd62f48552188b3f6fac8a14b709e97b7be
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2.47.3
