Re: New bcache compiler warning (was: Re: bcache: Minor fixes from kbuild robot)
From: Kent Overstreet <hidden>
Date: 2014-02-17 22:46:52
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On Mon, Feb 17, 2014 at 02:44:47PM -0800, Randy Dunlap wrote:
Could that cause a truncation? unsigned means unsigned int. Can unsigned int be smaller (fewer bits) than the k pointer? If so, is that OK or a problem?
It's just truncating the offset of the pointer within the struct bset, which is part of a btree node - the thing that's being cast is restricted to be no bigger than a btree node, which is at most a few mb.