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selftests/resctrl: Unmount resctrl FS if child fails to run benchmark

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[ Upstream commit f99e413eb54652e2436cc56d081176bc9a34cd8d ]

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>
This commit is contained in:
Ilpo Järvinen 2023-07-17 16:14:51 +03:00 committed by Greg Kroah-Hartman
parent d4b1f43944
commit f046a88cba
1 changed files with 1 additions and 0 deletions
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tools/testing/selftests/resctrl/resctrl.h
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@ -43,6 +43,7 @@
do { \
perror(err_msg); \
kill(ppid, SIGKILL); \
umount_resctrlfs(); \
exit(EXIT_FAILURE); \
} while (0)