From: Oliver Neukum <oneukum@suse.de>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Maneesh Soni <maneesh@in.ibm.com>,
gregkh@suse.de, linux-kernel@vger.kernel.org
Subject: Re: refcounting drivers' data structures used in sysfs buffers
Date: Fri, 9 Mar 2007 21:39:33 +0100 [thread overview]
Message-ID: <200703092139.35184.oneukum@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0703091509560.5094-100000@iolanthe.rowland.org>
Am Freitag, 9. März 2007 21:27 schrieb Alan Stern:
> On Fri, 9 Mar 2007, Oliver Neukum wrote:
>
> > > Adding a new release() callback would solve the problem by creating
> > > another. Drivers need to release their data as soon as possible after
> > > they unbind from a device, not when the device itself goes away. Think
> >
> > Wait, the callback from closing the file in sysfs is the earliest we can safely
> > free the data structure. How do you want to free earlier?
>
> It is _not_ the earliest we can safely free the data structure.
>
> Dmitry's callback occurs when _all_ the sysfs attributes have been
> released -- including ones that don't have anything to do with the
> driver's private data structure. Think of the bInterfaceClass attribute,
> for example.
Ok, yes I see. It is by far too late.
Regards
Oliver
next prev parent reply other threads:[~2007-03-09 20:39 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-08 13:05 refcounting drivers' data structures used in sysfs buffers Oliver Neukum
2007-03-08 16:02 ` Alan Stern
2007-03-09 0:45 ` Oliver Neukum
2007-03-09 16:32 ` Alan Stern
2007-03-09 16:44 ` Oliver Neukum
2007-03-09 17:02 ` Dmitry Torokhov
2007-03-09 17:18 ` Oliver Neukum
2007-03-09 17:34 ` Dmitry Torokhov
2007-03-09 19:32 ` Alan Stern
2007-03-09 20:05 ` Oliver Neukum
2007-03-09 20:27 ` Alan Stern
2007-03-09 20:39 ` Oliver Neukum [this message]
2007-03-09 20:08 ` Alan Stern
2007-03-09 20:48 ` Oliver Neukum
2007-03-10 19:19 ` Alan Stern
2007-03-12 8:54 ` Oliver Neukum
2007-03-12 14:57 ` Alan Stern
2007-03-12 15:23 ` Oliver Neukum
2007-03-12 15:42 ` Dmitry Torokhov
2007-03-12 15:59 ` Oliver Neukum
2007-03-12 16:21 ` Alan Stern
2007-03-12 18:25 ` Oliver Neukum
2007-03-12 19:31 ` Alan Stern
2007-03-12 19:49 ` Oliver Neukum
2007-03-12 20:03 ` Alan Stern
2007-03-12 20:15 ` Oliver Neukum
2007-03-12 20:31 ` Dmitry Torokhov
2007-03-12 20:45 ` Alan Stern
2007-03-12 21:31 ` Richard Purdie
2007-03-13 15:00 ` 2.6.21-rc suspend regression: sysfs deadlock Alan Stern
2007-03-13 18:42 ` Cornelia Huck
2007-03-13 21:20 ` Linus Torvalds
2007-03-14 16:12 ` Alan Stern
2007-03-14 18:43 ` Cornelia Huck
2007-03-14 19:23 ` Alan Stern
2007-03-15 10:27 ` Cornelia Huck
2007-03-15 12:31 ` Hugh Dickins
2007-03-15 13:02 ` Oliver Neukum
2007-03-15 13:22 ` Dmitry Torokhov
2007-03-15 13:59 ` Hugh Dickins
2007-03-15 14:27 ` Alan Stern
2007-03-15 15:32 ` Cornelia Huck
2007-03-15 16:29 ` Hugh Dickins
2007-03-15 16:51 ` Linus Torvalds
2007-03-15 19:50 ` [PATCH] sysfs and driver core: add callback helper, used by SCSI and S390 Alan Stern
2007-03-15 19:50 ` Alan Stern
2007-03-15 22:47 ` patch sysfs-and-driver-core-add-callback-helper-used-by-scsi-and-s390.patch added to gregkh-2.6 tree gregkh
2007-03-15 22:47 ` gregkh
2007-03-15 19:51 ` [PATCH] sysfs: reinstate exclusion between method calls and attribute unregistration Alan Stern
2007-03-13 19:00 ` 2.6.21-rc suspend regression: sysfs deadlock Hugh Dickins
2007-03-13 20:09 ` Alan Stern
2007-03-13 20:55 ` Hugh Dickins
2007-03-13 21:08 ` Dmitry Torokhov
2007-03-13 21:20 ` Alan Stern
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200703092139.35184.oneukum@suse.de \
--to=oneukum@suse.de \
--cc=dmitry.torokhov@gmail.com \
--cc=gregkh@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=maneesh@in.ibm.com \
--cc=stern@rowland.harvard.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.