Messages in this thread | | | Date | Tue, 4 Nov 2014 15:40:30 +0000 | From | Al Viro <> | Subject | Re: [PATCH 2/4] chardev: Increment cdev reference count when i_cdev references it |
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On Tue, Nov 04, 2014 at 04:37:52PM +0100, Jan Kara wrote: > On Tue 04-11-14 14:46:11, Al Viro wrote: > > On Wed, Oct 22, 2014 at 10:14:11PM +0200, Jan Kara wrote: > > > Currently i_cdev reference to a character device isn't accounted in the > > > reference count of the character device. This then requires us to track > > > all references through a list of all inodes referencing a character > > > device which is somewhat clumsy and requires list_head in each inode in > > > the system. > > > > > > So make i_cdev a reference like any other. > > > > So no rmmod for you until an inode of character device node you had > > closed a while ago finally gets evicted from icache? Or am I misreading > > you? > Yes, this is a consequence of the change. I should have noted in the > changelog I guess.
That consequence looks broken, IMO.
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