netdev - Re: [PATCH v2] net: delete /proc THIS

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Message-Id: <20180116.150148.555987913635993705.davem@davemloft.net>
Date:   Tue, 16 Jan 2018 15:01:48 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     adobriyan@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH v2] net: delete /proc THIS_MODULE references

From: Alexey Dobriyan <adobriyan@...il.com>
Date: Tue, 16 Jan 2018 00:42:40 +0300

> /proc has been ignoring struct file_operations::owner field for 10 years.
> Specifically, it started with commit 786d7e1612f0b0adb6046f19b906609e4fe8b1ba
> ("Fix rmmod/read/write races in /proc entries"). Notice the chunk where
> inode->i_fop is initialized with proxy struct file_operations for
> regular files:
> 
> 	-               if (de->proc_fops)
> 	-                       inode->i_fop = de->proc_fops;
> 	+               if (de->proc_fops) {
> 	+                       if (S_ISREG(inode->i_mode))
> 	+                               inode->i_fop = &proc_reg_file_ops;
> 	+                       else
> 	+                               inode->i_fop = de->proc_fops;
> 	+               }
> 
> VFS stopped pinning module at this point.
> 
> Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>

Applied to net-next, thank you.