Date: Tue, 23 Dec 2008 19:04:16 +0100 From: Rink Springer <rink@FreeBSD.org> To: Ed Schouten <ed@80386.nl> Cc: freebsd-usb@FreeBSD.org Subject: Re: Giant on serial devices in USB2? Message-ID: <20081223180416.GB77652@rink.nu> In-Reply-To: <20081223175911.GZ1176@hoeg.nl> References: <20081223175911.GZ1176@hoeg.nl>
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On Tue, Dec 23, 2008 at 06:59:11PM +0100, Ed Schouten wrote: > WHat's the exact reason USB2 still uses Giant on TTY related drivers? > Couldn't it just use the per-TTY mutex? If not, maybe it should create a > custom system-wide mutex, instead of using Giant? I think this is mostly leftover crud from the pre-TTY-MP safe days. As long as it uses the proper TTY interfaces, nothing should stop it from ditching Giant. -- Rink P.W. Springer - http://rink.nu "Chance favours the prepared mind" - Penn
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