From: Kent Overstreet <kmo@daterainc.com>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-bcache@vger.kernel.org
Subject: Re: New bcache compiler warning (was: Re: bcache: Minor fixes from kbuild robot)
Date: Mon, 17 Feb 2014 14:46:45 -0800 [thread overview]
Message-ID: <20140217224645.GC11655@kmo> (raw)
In-Reply-To: <530290DF.1060008@infradead.org>
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.
next prev parent reply other threads:[~2014-02-17 22:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-17 21:00 New bcache compiler warning (was: Re: bcache: Minor fixes from kbuild robot) Geert Uytterhoeven
2014-02-17 21:06 ` Randy Dunlap
2014-02-17 21:11 ` Geert Uytterhoeven
2014-02-17 21:45 ` Kent Overstreet
2014-02-17 22:44 ` Randy Dunlap
2014-02-17 22:46 ` Kent Overstreet [this message]
2014-02-18 9:01 ` Geert Uytterhoeven
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