tree 79dcad5d6babfe359c443093fe7e5bed84322ef7
parent d19b9846df64d8845be682b6318bd1aee246cf60
author Tejun Heo <tj@kernel.org> 1385668467 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1385776094 -0800

sysfs, kernfs: introduce kernfs_notify()

Introduce kernfs interface to wake up poll(2) which takes and returns
sysfs_dirents.

sysfs_notify_dirent() is renamed to kernfs_notify() and sysfs_notify()
is updated so that it doesn't directly grab sysfs_mutex but acquires
the target sysfs_dirents using sysfs_get_dirent().
sysfs_notify_dirent() is reimplemented as a dumb inline wrapper around
kernfs_notify().

This patch doesn't introduce any behavior changes.

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