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From: Al Viro <viro@zeniv.linux.org.uk>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Linux Trace Kernel <linux-trace-kernel@vger.kernel.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Christian Brauner <brauner@kernel.org>,
	linux-fsdevel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH] tracefs/eventfs: Use root and instance inodes as default ownership
Date: Thu, 4 Jan 2024 01:48:37 +0000	[thread overview]
Message-ID: <20240104014837.GO1674809@ZenIV> (raw)
In-Reply-To: <20240103203246.115732ec@gandalf.local.home>

On Wed, Jan 03, 2024 at 08:32:46PM -0500, Steven Rostedt wrote:

> +	/* Get the tracefs root from the parent */
> +	inode = d_inode(dentry->d_parent);
> +	inode = d_inode(inode->i_sb->s_root);

That makes no sense.  First of all, for any positive dentry we have
dentry->d_sb == dentry->d_inode->i_sb.  And it's the same for all
dentries on given superblock.  So what's the point of that dance?
If you want the root inode, just go for d_inode(dentry->d_sb->s_root)
and be done with that...

  reply	other threads:[~2024-01-04  1:48 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-04  1:32 [PATCH] tracefs/eventfs: Use root and instance inodes as default ownership Steven Rostedt
2024-01-04  1:48 ` Al Viro [this message]
2024-01-04  2:25   ` Steven Rostedt
2024-01-04  4:39     ` Al Viro
2024-01-04 15:05       ` Steven Rostedt
2024-01-04 18:25         ` Al Viro
2024-01-04 19:10           ` Steven Rostedt
2024-01-04 19:21             ` Linus Torvalds
2024-01-04 19:15           ` Steven Rostedt
2024-01-04 19:26             ` Matthew Wilcox
2024-01-04 19:35             ` Linus Torvalds
2024-01-04 20:02               ` Linus Torvalds
2024-01-04 21:28               ` Al Viro
2024-01-04 19:03         ` Matthew Wilcox
2024-01-04  1:59 ` Al Viro
2024-01-04  2:17   ` Steven Rostedt
2024-01-05 14:26 ` Christian Brauner
2024-01-05 14:59   ` Steven Rostedt
2024-01-07 12:42     ` Christian Brauner
2024-01-07 17:42       ` Christian Brauner
2024-01-07 18:01         ` Christian Brauner
2024-01-07 18:29       ` Steven Rostedt
2024-01-07 18:32         ` Steven Rostedt
2024-01-08 11:32           ` Christian Brauner
2024-01-08 15:41             ` Steven Rostedt
2024-01-08 11:04         ` Christian Brauner
2024-01-08 15:23           ` Steven Rostedt
2024-01-10 11:45             ` Christian Brauner
2024-01-10 13:07               ` Steven Rostedt
2024-01-10 15:52                 ` Steven Rostedt
2024-01-10 16:04                   ` Steven Rostedt
2024-01-10 18:31                   ` Steven Rostedt
2024-01-11 21:01                 ` Christian Brauner
2024-01-11 21:53                   ` Steven Rostedt
2024-01-12  8:27                     ` Christian Brauner
2024-01-12 13:53                       ` Steven Rostedt
2024-01-12 14:22                         ` Steven Rostedt

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