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From: matwey.kornilov@gmail.com (Matwey V. Kornilov)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Proper way to get device file minor number from struct file
Date: Sun, 10 Jul 2016 18:22:25 +0300	[thread overview]
Message-ID: <nltp7i$5oi$1@ger.gmane.org> (raw)

Hello,

I am looking through some legacy out of tree custom linux kernel device
driver.

It is full of lines like the following:

iminor(fp->f_dentry->d_inode)

here struct file *fp is an argument of callback of struct file_operations.

Documentation/filesystems/porting says:

"f_dentry is gone; use f_path.dentry, or, better yet, see if you can
avoid it entirely"

So, is there a proper compatible way to do the same?

             reply	other threads:[~2016-07-10 15:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-10 15:22 Matwey V. Kornilov [this message]
2016-07-10 16:02 ` Proper way to get device file minor number from struct file Bjørn Mork

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