On Wed, May 30, 2007 at 10:00:34AM -0400, Mathieu Desnoyers wrote:
>>> + if (prof_on)
>>> + BUG_ON(cond_call_arm("profile_on"));
* William Lee Irwin III ([email protected]) wrote:
>> What's the point of this BUG_ON()? The condition is a priori impossible.
On Thu, May 31, 2007 at 05:12:58PM -0400, Mathieu Desnoyers wrote:
> Not impossible: hash_add_cond_call() can return -ENOMEM if kmalloc lacks
> memory.
Shouldn't it just propagate the errors like anything else instead of
going BUG(), then? One can easily live without profiling if the profile
buffers should fail to be allocated e.g. due to memory fragmentation.
These things all have to handle errors for hotplugging anyway AIUI.
-- wli
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