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Subject: Re: [PATCH] 2.6.8.1 MegaRAID Driver Race
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "bradgoodman.com" <bkgoodman@bradgoodman.com>
Cc: akpm@zip.com.au, Atul.Mukker@lsil.com, bgoodman@acopia.com,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Marcelo Tosatti <marcelo@conectiva.com.br>, torvalds@osdl.org
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Date: Sat, 28 Aug 2004 20:15:39 +0100
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On Llu, 2004-08-23 at 22:57, bradgoodman.com wrote:
> [PATCH] 2.6.8.1 to LSI Logic MegaRAID Adapter - ioctl function calls 
> mega_internal_command, which uses wait_event, which calls schedule.
> This means schedule() is called while big kernel_lock is held.

This is allowed. The bkl is dropped and regained across sleeps. Its a
lock that gives "traditional unix semantics" not a normal lock.