[PATCH 06/14] sysfs: Rewrite sysfs_get_dentry
cornelia.huck at de.ibm.com
Mon Aug 6 08:06:36 PDT 2007
On Fri, 03 Aug 2007 13:29:19 -0600,
ebiederm at xmission.com (Eric W. Biederman) wrote:
> I currently have two practical solutions on the table.
> - Make the s_sibling list walk RCU safe so it does not require us to
> grab the sysfs_mutex. This works but is a bit complicated.
But it would be nice, I guess :)
> - Just kill all of the dentries in sysfs_move_dir and sysfs_rename_dir.
> The semantics are that no one can be using the device at the time
> of a rename or a move (as I read the callers) so dropping the dentries
> and making it look like a delete/add pair to the users should be
> acceptable and a whole lot simpler.
Hm, I'm not sure I understand you here. What do you mean by "using the
device"? Do you mean dropping the sysfs_dirents? Or am I just confused?
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