From: Steven Rostedt <rostedt@goodmis.org>
To: Ajay Kaher <akaher@vmware.com>
Cc: "mhiramat@kernel.org" <mhiramat@kernel.org>,
"shuah@kernel.org" <shuah@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-trace-kernel@vger.kernel.org"
<linux-trace-kernel@vger.kernel.org>,
"linux-kselftest@vger.kernel.org"
<linux-kselftest@vger.kernel.org>,
Ching-lin Yu <chinglinyu@google.com>,
Nadav Amit <namit@vmware.com>,
"srivatsa@csail.mit.edu" <srivatsa@csail.mit.edu>,
Alexey Makhalov <amakhalov@vmware.com>,
Vasavi Sirnapalli <vsirnapalli@vmware.com>,
Tapas Kundu <tkundu@vmware.com>,
"er.ajay.kaher@gmail.com" <er.ajay.kaher@gmail.com>
Subject: Re: [PATCH v3 03/10] eventfs: adding eventfs dir add functions
Date: Mon, 3 Jul 2023 15:52:26 -0400 [thread overview]
Message-ID: <20230703155226.1ab27bc1@gandalf.local.home> (raw)
In-Reply-To: <84CA259A-8A99-471C-B44C-08D289972F43@vmware.com>
On Mon, 3 Jul 2023 18:51:22 +0000
Ajay Kaher <akaher@vmware.com> wrote:
> >
> > We can also look to see if we can implement this with RCU. What exactly
> > is this rwsem protecting?
> >
>
> - struct eventfs_file holds the meta-data for file or dir.
> https://github.com/intel-lab-lkp/linux/blob/dfe0dc15a73261ed83cdc728e43f4b3d4e315aae/include/linux/tracefs.h#L28
> - eventfs_rwsem is supposed to protect the 'link-list which is made of struct eventfs_file
> ' and elements of struct eventfs_file.
RCU is usually the perfect solution for protecting link lists though. I'll
take a look at this when I get back to work.
-- Steve
next prev parent reply other threads:[~2023-07-03 19:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-01 9:00 [PATCH v3 00/10] tracing: introducing eventfs Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 01/10] tracing: Require all trace events to have a TRACE_SYSTEM Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 02/10] eventfs: introducing struct tracefs_inode Ajay Kaher
2023-07-01 13:25 ` Steven Rostedt
2023-07-02 14:55 ` Masami Hiramatsu
2023-06-01 9:00 ` [PATCH v3 03/10] eventfs: adding eventfs dir add functions Ajay Kaher
2023-07-01 13:54 ` Steven Rostedt
2023-07-03 10:13 ` Ajay Kaher
2023-07-03 15:08 ` Steven Rostedt
2023-07-03 18:51 ` Ajay Kaher
2023-07-03 19:52 ` Steven Rostedt [this message]
[not found] ` <20230709215447.536defa6@rorschach.local.home>
2023-07-10 2:17 ` Nadav Amit
2023-07-10 2:53 ` Steven Rostedt
2023-07-10 18:53 ` Ajay Kaher
2023-07-10 19:06 ` Steven Rostedt
[not found] ` <20230710150731.4ec2b9f8@gandalf.local.home>
2023-07-10 19:10 ` Steven Rostedt
2023-07-10 20:15 ` Steven Rostedt
2023-07-10 21:09 ` Steven Rostedt
2023-07-11 14:24 ` Steven Rostedt
2023-06-01 9:00 ` [PATCH v3 04/10] eventfs: adding eventfs file " Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 05/10] eventfs: adding eventfs file, directory remove function Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 06/10] eventfs: adding functions to create eventfs files and directories Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 07/10] eventfs: adding eventfs lookup, read, open functions Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 08/10] eventfs: creating tracefs_inode_cache Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 09/10] eventfs: moving tracing/events to eventfs Ajay Kaher
2023-06-10 15:25 ` kernel test robot
2023-06-13 7:06 ` Ajay Kaher
2023-06-01 9:00 ` [PATCH v3 10/10] test: ftrace: fix kprobe test for eventfs Ajay Kaher
2023-06-13 8:21 ` Masami Hiramatsu
2023-06-01 9:07 ` [PATCH v3 00/10] tracing: introducing eventfs Ajay Kaher
2023-06-19 5:38 ` Ajay Kaher
2023-06-20 15:02 ` Steven Rostedt
2023-06-21 11:42 ` Ajay Kaher
2023-06-22 3:31 ` Masami Hiramatsu
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