Tejun Heo 47a52e91f4
kernfs: update kernfs_rename_ns() to consider KERNFS_STATIC_NAME ...
kernfs_rename_ns() currently assumes that the target sysfs_dirent has
a copied name. This has been okay because sysfs supports rename only
for directories which always have copied names; however, there's
nothing in kernfs interface which calls for such restriction and
currently invoking kernfs_rename_ns() on a regular file leads to oops
because it ends up trying to kfree() a static name.
This patch updates kernfs_rename_ns() so that it skips kfree() of the
old name if it's static. This allows it to be used for all node
types.
Signed-off-by: Tejun Heo <tj@kernel.org >
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
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Tejun Heo
47a52e91f4