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| author | aigourensheng <shechenglong001@gmail.com> | 2024-06-17 01:29:34 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-06-24 20:52:10 -0700 |
| commit | 8b8546d298dc9ce9d5d01a06c822e255d2159ca7 (patch) | |
| tree | 14fce2f7828058791276211fdb83d45942a12525 /net/unix/af_unix.c | |
| parent | ff202303c398ed56386ca4954154de9a96eb732a (diff) | |
| download | linux-8b8546d298dc9ce9d5d01a06c822e255d2159ca7.tar.gz linux-8b8546d298dc9ce9d5d01a06c822e255d2159ca7.tar.bz2 linux-8b8546d298dc9ce9d5d01a06c822e255d2159ca7.zip | |
selftests/mm:fix test_prctl_fork_exec return failure
After calling fork() in test_prctl_fork_exec(), the global variable
ksm_full_scans_fd is initialized to 0 in the child process upon entering
the main function of ./ksm_functional_tests.
In the function call chain test_child_ksm() -> __mmap_and_merge_range ->
ksm_merge-> ksm_get_full_scans, start_scans = ksm_get_full_scans() will
return an error. Therefore, the value of ksm_full_scans_fd needs to be
initialized before calling test_child_ksm in the child process.
Link: https://lkml.kernel.org/r/20240617052934.5834-1-shechenglong001@gmail.com
Signed-off-by: aigourensheng <shechenglong001@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions