linux-kernel - Re: [PATCH v2] tracing/selftests: Add ownership modification tests for eventfs

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Message-Id: <20231222131139.26fe6dea8524016d4f3251a4@kernel.org>
Date: Fri, 22 Dec 2023 13:11:39 +0900
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux Trace Kernel
 <linux-trace-kernel@...r.kernel.org>, Mark Rutland <mark.rutland@....com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Linus Torvalds
 <torvalds@...ux-foundation.org>, Shuah Khan <shuah@...nel.org>, Linux
 selftests <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v2] tracing/selftests: Add ownership modification tests
 for eventfs

On Thu, 21 Dec 2023 21:07:57 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> On Fri, 22 Dec 2023 10:52:00 +0900
> Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
> > On Fri, 22 Dec 2023 10:48:41 +0900
> > Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:
> 
> > And I confirmed that this test passed on v6.5.13 with that change.
> > 
> 
> I just ran it on 6.5.13 and it took *forever*!
> 
> But I do have a bit of debug, and before 6.6 creating the instance and
> deleting it required creating and deleting thousands of inodes and dentries.

Hmm, it may depends on the machine. I could ran it (on 64 vcpu VM)

Thank you,

> 
> -- Steve
> 


-- 
Masami Hiramatsu (Google) <mhiramat@...nel.org>