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From: Greg KH <gregkh@linuxfoundation.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [v6.6][PATCH 0/5] tracing: Backport of eventfs fixes for v6.6
Date: Mon, 6 Nov 2023 12:40:52 +0100	[thread overview]
Message-ID: <2023110620-wildcard-chrome-0d72@gregkh> (raw)
In-Reply-To: <20231105155630.925114107@goodmis.org>

On Sun, Nov 05, 2023 at 10:56:30AM -0500, Steven Rostedt wrote:
> 
> Greg,
> 
> Friday before the merge window opened, I received a bug report
> for the eventfs code that was in linux-next. I spent the next
> 5 days debugging it and not only fixing it, but it led to finding
> other bugs in the code. Several of these other bugs happen to
> also affect the 6.6 kernel.
> 
> The eventfs code was written in two parts to lower the complexity.
> The first part added just the dynamic creation of the eventfs
> file system and that was added to 6.6.
> 
> The second part went further and removed the one-to-one mapping between
> dentry/inode and meta data, as all events have the same files. It replaced
> the meta data for each file with callbacks, which caused quite a bit of
> code churn.
> 
> As the merge window was already open, when I finished all the fixes
> I just sent those fixes on top of the linux-next changes along with
> my pull request. That means, there are 5 commits that are marked
> stable (or should be marked for stable) that need to be applied to
> 6.6 but require a bit of tweaking or even a new way of implementing the fix!
> 
> After sending the pull request, I then checked out 6.6 an took those
> 5 changes and fixed them up on top of it. I ran them through all my
> tests that I use to send to Linus.
> 
> So these should be as good as the versions of the patches in Linus's tree.
> I waited until Linus pulled in those changes to send this series out.

All now queued up.  Note, patch 1/6 needs to go to older kernels as
well, according to your Fixes: tag, so if you could provide backports
for them as well that would be great.

thanks,

greg k-h

  parent reply	other threads:[~2023-11-06 11:41 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-05 15:56 [v6.6][PATCH 0/5] tracing: Backport of eventfs fixes for v6.6 Steven Rostedt
2023-11-05 15:56 ` [v6.6][PATCH 1/5] tracing: Have trace_event_file have ref counters Steven Rostedt
2023-11-05 15:56 ` [v6.6][PATCH 2/5] eventfs: Remove "is_freed" union with rcu head Steven Rostedt
2023-11-05 15:56 ` [v6.6][PATCH 3/5] eventfs: Save ownership and mode Steven Rostedt
2023-11-12 10:41   ` NULL pointer dereference regression when running `chmod -R root:tracing /sys/kernel/debug/tracing` Milian Wolff
2023-11-12 12:14     ` Steven Rostedt
2023-11-12 14:26       ` Steven Rostedt
2023-11-14 13:38     ` Linux regression tracking #adding (Thorsten Leemhuis)
2023-11-14 13:55       ` Steven Rostedt
2023-11-14 15:06         ` Thorsten Leemhuis
2023-11-05 15:56 ` [v6.6][PATCH 4/5] eventfs: Delete eventfs_inode when the last dentry is freed Steven Rostedt
2023-11-05 15:56 ` [v6.6][PATCH 5/5] eventfs: Use simple_recursive_removal() to clean up dentries Steven Rostedt
2023-11-06 11:40 ` Greg KH [this message]
2023-11-06 20:12   ` [v6.6][PATCH 0/5] tracing: Backport of eventfs fixes for v6.6 Steven Rostedt

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