tree 4ed4df3ef3a249d2a4b562e36876fc8d4a3fabd9
parent 5f9953237f684ea1778adb9d26162da00b282225
author Tejun Heo <htejun@gmail.com> 1181762843 +0900
committer Greg Kroah-Hartman <gregkh@suse.de> 1184195348 -0700

sysfs: use sysfs_mutex to protect the sysfs_dirent tree

As kobj sysfs dentries and inodes are gonna be made reclaimable,
i_mutex can't be used to protect sysfs_dirent tree.  Use sysfs_mutex
globally instead.  As the whole tree is protected with sysfs_mutex,
there is no reason to keep sysfs_rename_sem.  Drop it.

While at it, add docbook comments to functions which require
sysfs_mutex locking.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>