tree 688842d196ae287bce080fe2e13ca00e796c8a06
parent 2d0cfbec2a95c16818960fda1dfa815fd1a62070
author Tejun Heo <tj@kernel.org> 1385668466 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1385776094 -0800

sysfs, kernfs: add kernfs_ops->seq_{start|next|stop}()

kernfs_ops currently only supports single_open() behavior which is
pretty restrictive.  Add optional callbacks ->seq_{start|next|stop}()
which, when implemented, are invoked for seq_file traversal.  This
allows full seq_file functionality for kernfs users.  This currently
doesn't have any user and doesn't change any behavior.

v2: Refreshed on top of the updated "sysfs, kernfs: prepare read path
    for kernfs".

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>