Messages in this thread | | | Date | Thu, 25 Jun 2015 20:14:59 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH] printk: Fixup the nmi printk mess |
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On Fri, Jun 12, 2015 at 05:35:05PM +0200, Petr Mladek wrote: > I have got another idea. We already use a lock to synchronize > readers. It might be used to avoid the race and keep the global > flush(). > > I played with it, see below. It is based on 2nd Peter's patch > where I modified only struct nmi_seq_buf, __printk_nmi_flush(), > and vprintk_nmi(). > > It forces the reader to flush everything or nothing. It is less > effective than the previous code but much more simple. > > It seems to work but it is just a proof-of-concept. Also I think that > it would be possible to use the normal seq_buf in the end.
Sorry, got side tracked. Yes this looks ok. Want to submit a proper patch?
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