On Wed, Aug 31, 2016 at 10:13:49AM -0500, Eric Sandeen wrote: > A /sys/kernel/debug/btrfs/test file was added nearly > two and a half years ago, but it serves no purpose; It does. Introduced in 1bae30982bc86ab66d61ccb6e22792593b45d44d says something about helping developers to easily export information from the filesystem, to aid debugging. Writing the debugfs support code is not obviously trivial, so it's idling in the source. Exporing a new value is as easy as copy and update 3 lines of code. If you have no use for it, fine. > it stores and returns a value, but nothing in the btrfs > code uses this value in any way. There are no other btrfs > files in this debugfs dir. > > This was brought to my attention because it is world-writable; > it is the only such file under /sys/kernel/debug, and without > knowledge of its purpose, some users were alarmed by this. So let's fix the permissions. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
