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SubjectRe: [PATCH v3] tracing/selftests: Add ownership modification tests for eventfs

Shuah,

This patch has no dependencies. You can take it through your tree for the
next merge window if you want. If not, I can take it.

Thanks,

-- Steve


On Thu, 21 Dec 2023 21:12:29 -0500
Steven Rostedt <rostedt@goodmis.org> wrote:

> From: "Steven Rostedt (Google)" <rostedt@goodmis.org>
>
> As there were bugs found with the ownership of eventfs dynamic file
> creation. Add a test to test it.
>
> It will remount tracefs with a different gid and check the ownership of
> the eventfs directory, as well as the system and event directories. It
> will also check the event file directories.
>
> It then does a chgrp on each of these as well to see if they all get
> updated as expected.
>
> Then it remounts the tracefs file system back to the original group and
> makes sure that all the updated files and directories were reset back to
> the original ownership.
>
> It does the same for instances that change the ownership of he instance
> directory.
>
> Note, because the uid is not reset by a remount, it is tested for every
> file by switching it to a new owner and then back again.
>
> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
> ---
>

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