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Date: Wed, 27 Jun 2007 03:39:03 +0200 From: Nick Piggin <npiggin@...e.de> To: Randy Dunlap <randy.dunlap@...cle.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, Dave Kleikamp <shaggy@...ux.vnet.ibm.com>, Adrian Bunk <bunk@...sta.de>, linux-kernel@...r.kernel.org Subject: Re: [-mm patch] remove nobh_{prepare,commit}_write() On Tue, Jun 26, 2007 at 02:33:35PM -0700, Randy Dunlap wrote: > On Tue, 26 Jun 2007 14:23:20 -0700 Andrew Morton wrote: > > > On Tue, 26 Jun 2007 15:48:58 -0500 > > Dave Kleikamp <shaggy@...ux.vnet.ibm.com> wrote: > > > > > On Tue, 2007-06-26 at 13:32 -0700, Andrew Morton wrote: > > > > On Fri, 15 Jun 2007 00:15:55 +0200 > > > > Adrian Bunk <bunk@...sta.de> wrote: > > > > > > > > > nobh_{prepare,commit}_write() are no longer used. > > > > > > > > wth? What happened to ext2 and ext3 nobh mode? They seem to > > > > have magically and unchangeloggedly disappeared? > > > > > > They were removed with Nick's new aops patches. > > ^secretly > > > > > > > That much I worked out for myself. It's kinda staggering that a fairly > > major feature in two fairly major filesystems got removed without even a > > mention in the changelog. I don't recall having seen it discussed in email > > but I obviously missed that bit. > > > > Look, I'm one micron from just dropping the whole lot. These changes > > simply have not received the amount of energy, effort, care, attention and > > testing which a change of this magnitude requires. > > so be sure to discuss that (not the patches themselves so much, > but the process(es)) at the kernel summit etc.... I did of course mention that nobh wasn't converted when sending the patches. I asked for comments about how much it is used in real world. Badari was the only one who replied about that but we didn't reach a conclusion. I don't know about energy, but I have seen lots of other patches cause a lot more problems... - 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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