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| author | sunliming <sunliming@kylinos.cn> | 2023-06-06 14:20:26 +0800 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-14 12:41:53 -0400 |
| commit | 4b56c21b11dcd2c6e4c6ee81bde77bea05e64db0 (patch) | |
| tree | 3add3df3c4100e6feb56aafa39c047ea23ce874c | |
| parent | 3e7269dd5fd5e77c215829e80fc1f29c989c9c42 (diff) | |
| download | linux-4b56c21b11dcd2c6e4c6ee81bde77bea05e64db0.tar.gz | |
selftests/user_events: Clear the events after perf self-test
When the self test is completed, perf self-test left the user events not to
be cleared. Clear the events by unregister and delete the event.
Link: https://lkml.kernel.org/r/20230606062027.1008398-4-sunliming@kylinos.cn
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | tools/testing/selftests/user_events/perf_test.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/testing/selftests/user_events/perf_test.c b/tools/testing/selftests/user_events/perf_test.c index a070258d4449e..e97f24ab6e2f9 100644 --- a/tools/testing/selftests/user_events/perf_test.c +++ b/tools/testing/selftests/user_events/perf_test.c @@ -81,6 +81,32 @@ static int get_offset(void) return offset; } +static int clear(int *check) +{ + struct user_unreg unreg = {0}; + + unreg.size = sizeof(unreg); + unreg.disable_bit = 31; + unreg.disable_addr = (__u64)check; + + int fd = open(data_file, O_RDWR); + + if (fd == -1) + return -1; + + if (ioctl(fd, DIAG_IOCSUNREG, &unreg) == -1) + if (errno != ENOENT) + return -1; + + if (ioctl(fd, DIAG_IOCSDEL, "__test_event") == -1) + if (errno != ENOENT) + return -1; + + close(fd); + + return 0; +} + FIXTURE(user) { int data_fd; int check; @@ -93,6 +119,9 @@ FIXTURE_SETUP(user) { FIXTURE_TEARDOWN(user) { close(self->data_fd); + + if (clear(&self->check) != 0) + printf("WARNING: Clear didn't work!\n"); } TEST_F(user, perf_write) { |