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caddc0fbe4
A few places currently lack umounting resctrl FS on error paths: - cmt_resctrl_val() has multiple error paths with direct return. - cat_perf_miss_val() has multiple error paths with direct return. In addition, validate_resctrl_feature_request() is called by run_mbm_test() and run_mba_test(). Neither MBA nor MBM test tries to umount resctrl FS. Each and every test does require resctrl FS to be present already for feature check. Thus, it makes sense to just mount it on higher level in resctrl_tests.c and properly pair it with umount. Move resctrl FS (re)mount/unmount into each test function in resctrl_tests.c. Make feature validation to simply check that resctrl FS is mounted. As there's the final umount in main() before this change, the selftest should not leave resctrl FS behind after the tests even if one of the forementioned paths is taken (thus, no fixes tag). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.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> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.