On Wed, 20 Feb 2013, Tejun Heo wrote: > Until recently, when an negative ID is specified, idr functions used > to ignore the sign bit and proceeded with the operation with the rest > of bits, which is bizarre and error-prone. The behavior recently got > changed so that negative IDs are treated as invalid but we're > triggering WARN_ON_ONCE() on negative IDs just in case somebody was > depending on the sign bit being ignored, so that those can be detected > and fixed easily. > > We only need this for a while. Explain why WARN_ON_ONCE()s are there > and that they can be removed later. > > Signed-off-by: Tejun Heo <t...@kernel.org>
Acked-by : Thomas Gleixner <t...@linutronix.de> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
