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Date: Fri, 12 Jan 2007 15:58:13 +1100 From: Nick Piggin <nickpiggin@...oo.com.au> To: Nick Piggin <nickpiggin@...oo.com.au> CC: Linus Torvalds <torvalds@...l.org>, Bill Davidsen <davidsen@....com>, Andrew Morton <akpm@...l.org>, Hua Zhong <hzhong@...il.com>, Hugh Dickins <hugh@...itas.com>, linux-kernel@...r.kernel.org, hch@...radead.org, kenneth.w.chen@...el.com, mjt@....msk.ru Subject: Re: O_DIRECT question Nick Piggin wrote: > Linus Torvalds wrote: >> Very basic issue: the perfect is the enemy of the good. Claiming that >> there is a "proper solution" is usually a total red herring. Quite >> often there isn't, and the "paper over" is actually not papering over, >> it's quite possibly the best solution there is. > > > Yeah *smallish* higher order allocations are fine, and we use them all the > time for things like stacks or networking. > > But Aubrey (who somehow got removed from the cc list) wants to do order 9 > allocations from userspace in his nommu environment. I'm just trying to be > realistic when I say that this isn't going to be robust and a userspace > solution is needed. Oh, and also: I don't disagree with that limiting pagecache to some % might be useful for other reasons. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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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