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selftests/resctrl: Unmount resctrl FS if child fails to run benchmark
[ Upstream commitf99e413eb5
] A child calls PARENT_EXIT() when it fails to run a benchmark to kill the parent process. PARENT_EXIT() lacks unmount for the resctrl FS and the parent won't be there to unmount it either after it gets killed. Add the resctrl FS unmount also to PARENT_EXIT(). Fixes:591a6e8588
("selftests/resctrl: Add basic resctrl file system operations and data") Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Tested-by: Babu Moger <babu.moger@amd.com> Tested-by: Shaopeng Tan (Fujitsu) <tan.shaopeng@fujitsu.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -43,6 +43,7 @@
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do { \
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perror(err_msg); \
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kill(ppid, SIGKILL); \
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umount_resctrlfs(); \
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exit(EXIT_FAILURE); \
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} while (0)
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