kernfs: implement kernfs_path_len()

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Add a function to determine the path length of a kernfs node.  This
for now will be used by writeback tracepoint updates.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Tejun Heo 2015-08-18 14:54:55 -07:00 • committed by Jens Axboe

parent 60292bcc1b

commit 9acee9c551

2 changed files with 27 additions and 0 deletions

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include/linux/kernfs.h

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