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| author |   SeongJae Park <sj@kernel.org> | 2021-12-10 14:46:49 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-12-10 17:10:56 -0800 |
| commit | c6980e30af356e85699f37142ae435a6aa483ceb (patch) | |
| tree | 54ea62d7f51cd1754e3cf0f7a3dd741d0eb98ef4 /tools/testing/selftests/damon | |
| parent | selftests/damon: skip test if DAMON is running (diff) | |
| download | wireguard-linux-c6980e30af356e85699f37142ae435a6aa483ceb.tar.xz wireguard-linux-c6980e30af356e85699f37142ae435a6aa483ceb.zip | |
selftests/damon: test DAMON enabling with empty target_ids case
DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83ddb0 ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on"). To avoid future
regression, this commit adds a test case for that in DAMON selftests.
Link: https://lkml.kernel.org/r/20211201150440.1088-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests/damon')
| -rw-r--r-- | tools/testing/selftests/damon/debugfs_attrs.sh | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh index fc80380c59f0..d0916373f310 100644 --- a/tools/testing/selftests/damon/debugfs_attrs.sh +++ b/tools/testing/selftests/damon/debugfs_attrs.sh @@ -94,4 +94,13 @@ test_write_succ "$file" "" "$orig_content" "empty input" test_content "$file" "$orig_content" "" "empty input written" echo "$orig_content" > "$file" +# Test empty targets case +# ======================= + +orig_target_ids=$(cat "$DBGFS/target_ids") +echo "" > "$DBGFS/target_ids" +orig_monitor_on=$(cat "$DBGFS/monitor_on") +test_write_fail "$DBGFS/monitor_on" "on" "orig_monitor_on" "empty target ids" +echo "$orig_target_ids" > "$DBGFS/target_ids" + echo "PASS" |