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Message-ID: <20130719221143.GG29404@logfs.org> Date: Fri, 19 Jul 2013 18:11:43 -0400 From: Jörn Engel <joern@...fs.org> To: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@....com>, Sreekanth Reddy <Sreekanth.Reddy@....com>, support@....com, "James E.J. Bottomley" <JBottomley@...allels.com>, DL-MPTFusionLinux@....com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, mit@...estorage.com Subject: Re: [PATCH] mpt2sas: don't handle broadcast primitives On Fri, 19 July 2013 18:06:59 -0400, Jörn Engel wrote: > > The handling of broadcast primitives involves > _scsih_block_io_all_device(), which does what the name implies. I have > observed cases with >60s of blocking io on all devices, caused by a > single bad device. The downsides of this code are obvious, while the > upsides are more elusive. And since this patch looks more like an April fools joke: I have gathered a few machine-months of testing, including tortures that specifically stress the removed codepaths. This is a serious submission and unless someone can show me a _very_ good reason for keeping the deleted code, I would like to get it merged. Jörn -- Computer system analysis is like child-rearing; you can do grievous damage, but you cannot ensure success." -- Tom DeMarco -- 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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