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Message-ID: <20100914205246.0e35c9af@lxorguk.ukuu.org.uk> Date: Tue, 14 Sep 2010 20:52:46 +0100 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Timur Tabi <timur@...escale.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org, benh@...nel.crashing.org, kumar.gala@...escale.com, amit.shah@...hat.com Subject: Re: [PATCH] hvc_console: fix dropping of characters when output byte channel is full On Tue, 14 Sep 2010 14:25:34 -0500 Timur Tabi <timur@...escale.com> wrote: > Alan Cox wrote: > > Its a printk handler - better to lose the bytes than hang the box. I > > think the current code is probably right. > > What do you think about this change: > > http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-October/thread.html#76830 > > This is the original version of my patch. In it, I simply allow drivers to > return 0 to indicate that they're too busy to accept data. It works great > on the hvc driver that we have in-house today, but it might break other > drivers that return 0 to indicate error. If you want to make that change then I guess you need to audit every other hvc driver first. But I never understood the point of the hvc layer anyway 8) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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